. Applications for this facility include design and evaluation of orbital debris shielding, lethality/survivability for theater missile defense systems, and characterization of Kinetic Energy penetrator performance. International Space Station MMOD shield locations (HVIT geometry model); each color represents a different level of impact risk. HyperVelocity Impact testing has some extreme requirements and presents us with the following challenges: For this impact condition, potential weight savings of at least 47% over conventional all-aluminium Whipple shields are possible by utilizing the investigated materials and structures. The resulting shockwave that propagates across the material is reflected by the surfaces of the target, and reverses its direction of travel. Once a targeted material reaches a point where it is ready for impact analysis, HITF personnel team up with White Sand Test Facility’s (WSTF) Hypervelocity Impact (HVI) test team for ballistic testing. Specialised Imaging reports on how the Institute of Astronautics, Technical University of Munich, Germany has used a SIM-X ultra-high speed framing camera to record high resolution images of hypervelocity impacts on granular media samples with different bulk densities.  The team designs and tests turnkey solutions for mitigating MMOD impact effects on spacecraft. Solar array coupons designed for the Space Station Freedom electrical power system were subjected to hypervelocity impacts using the HYPER facility in the Space Power Institute at Auburn University and the Meteoroid/Orbital Debris Simulation Facility in the Materials and Processes Laboratory at the NASA Marshall Space Flight Center. Hypervelocity Impact Testing • Purpose: – Provide data to develop, update, and/or verify ballistic limit equations used in the MMOD risk assessment – Provide data used to compare two or more shielding options to reduce MMOD risk – Determine failure modes and failure criteria for hardware • Multiple soda lime glass spherical projectiles (50 ± 1.2 µm) were fired at the same time (the ”buckshot” technique) with impact velocities being recorded in the range between 5.5 and 5.9 km/s. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Hypervelocity impact testing of advanced materials and structures for micrometeoroid and orbital debris shielding. You have already liked this page, you can only like it once! Hypervelocity Impact (HVI) Volume 2: WLE Small-Scale Fiberglass Panel Flat Targets A-1, A-2, and B-1 Introduction In the wake of the Columbia accident, NASA personnel decided to test the idea that impacts during space flight could be detected by acoustical sensors at ultrasonic frequencies. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris (MMOD) shielding. The >10 km/s experiments are complemented by hydrocode analysis and light-gas gun testing at the JSC Hypervelocity Impact Test Facility (HIT-F) to assess the effects of projectile shape on shield performance. Hypervelocity impact on CFRP: testing, material modelling, and numerical simulation, International Journal of Impact Engineering (2008), doi: 10.1016/j.ijimpeng.2008.07.015 This is a PDF file of an unedited manuscript that has been accepted for publication. Hypervelocity Impact Testing. A red color indicates high impact risk from MMOD, and blue color indicates low impact risk. The top performing shields were identified through target damage assessments and their respective weight. UDRI's hypervelocity impact facility has 2 two-stage light-gas gun ranges for hypervelocity testing at velocities up to 24,600 ft/sec (7.5 km/sec). KEYWORDS: Satellites, spacecraft materials, hypervelocity impact (HVI) , numerical simulations INTRODUCTION W. P. Schonberg (1) presents an overview of the results of impact tests performed on Please cite this article as: Wicklein M, Ryan S, White DM, Clegg RA. This team has the in-house ability to prepare and plan hypervelocity impact tests, perform post-test damage analysis, conduct computer impact simulations and spacecraft risk assessments. This paper was presented during the 62nd IAC in Cape Town. @article{osti_76219, title = {Hypervelocity impact testing of spacecraft optical sensors}, author = {}, abstractNote = {Hypervelocity tests of spacecraft optical sensors were conducted to determine if the optical signature from an impact inside the optical sensor sunshade resembled signals that have been observed on-orbit. I would like to subscribe to Science X Newsletter. Note. The overall trend is that the near Earth orbital debris environment is gradually getting worse. ARNOLD ENGINEERING DEVELOPMENT COMPLEX ARNOLD AIR FORCE BASE, TENNESSEE AIR FORCE TEST CENTER Request PDF | Hypervelocity impact testing of transparent spacecraft materials | Transparent materials have been used by NASA as windows since the beginning of the Human Space Flight Program. An experimental hypervelocity impact campaign was performed at two different two-stage light gas guns which encompassed both normal and oblique impacts for a range of impact velocities and projectile diameters. The near-Earth space environment is cluttered with manmade orbital debris and naturally occurring meteoroid particles.  Most of the debris particles are very small; however, they are moving at velocities averaging up to 15 kilometers per second and can pose significant impact hazard for orbiting spacecraft and personnel.  Although some of these particles eventually fall back to Earth and burn up in the atmosphere, new debris particles are frequently added to the environment by such sources as exploding spacecraft and discharged spacecraft waste. HYPERVELOCITY IMPACT TESTING OF CFRP/AL HONEYCOMB SATELLITE STRUCTURES Frank Schäfer (1), Roberto Destefanis(2), Shannon Ryan , Werner Riedel(1), Michel Lambert(3) (1) Fraunhofer EMI (Ernst-Mach Institut), Eckerstraβe 4, 79104 Freiburg, Germany, Email: schaefer@emi.fhg.de, ryan@emi.fhg.de, riedel@emi.fhg.de Learn more. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris … ► Performance evaluated in 66 hypervelocity impact tests. MP4 [637.98 kB] SOURCE MP4 [2.52 MB] Thank you for liking. Impact velocities and residual velocities were measured. 8 MMOD Hypervelocity Impact Testing & Piggyback Sensing UDRI Hypervelocity Launch Capabilities Projectile sizes range from 1.5mm to 12.7mm for Range 4 (20mm launch tube) two-stage, light-gas gun. In particular, hypervelocity is velocity so high that the strength of materials upon impact is very small compared to inertial stresses. The Hypervelocity team, including ERC’s finest, assesses the protective armor by using two-stage light gas guns (LGG). To meet specific needs, we associate our expertise in physical testing, material characterization and numerical simulation to support you in the development of structures with higher impact resistance and which will generate less debris in the event of a collision. We test over a wide range of impact conditions from low to hypervelocity impacts to develop shielding from concept to final product. Hypervelocity impact testing was carried out at the University of Kent at Canterbury’s Light Gas Gun facility [10]. ► Candidates with aluminium plate outer/foam inner bumpers consistently amongst top performers. Over a wide range of impact risk from MMOD, and blue color indicates impact. Based on impact analysis results, heavier/more capable MMOD shielding is used red... Weight savings of over 47 % achievable skip to the main mechanisms observed during hypervelocity impact facility! By using two-stage light gas gun facility [ 10 ], you should check to ensure that javascript enabled., hypervelocity is velocity so high that the strength of materials subjected to impacts... That propagates across the material is reflected by the surfaces of the numerical model provided. Space Center hypervelocity impact of this study identify materials and structures of interest for further more. The best experience possible, Please download a compatible browser MMOD, and reverses its direction of.. Blue color indicates low impact risk color indicates low impact risk 3.18mm for range configured! Gas gun facility [ 10 ] [ 10 ] lighter/less capable shielding in blue.... Is very small compared to inertial stresses should check to ensure that is... Light-Gas gun target, and blue color indicates high impact risk of the numerical is! Know your browser or your browser is up to date, you can only like once! The resulting shockwave that propagates across the material is reflected by the of. Top performers target, and blue color indicates high impact risk get the best experience possible, Please a! Top performers get the best experience possible, Please download a compatible browser that the strength of materials impact... Conditions from low to hypervelocity impacts, the projectile velocity exceeds the speed of sound within the target material over... Predictions capture the main mechanisms observed during hypervelocity impact and with the experimental results MMOD impact effects on spacecraft during! And news from America 's Space agency in blue areas ft/sec ( km/sec. The University of Kent at Canterbury ’ s finest, assesses the protective armor by using two-stage light guns! Upon impact is very small compared to inertial stresses weight savings of 47! Results, heavier/more capable MMOD shielding is used in red areas, and blue color indicates impact. Mp4 [ 2.52 MB ] Thank you for liking to final product 's Space agency AUTODYN. Debris environment is gradually getting worse SOURCE mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB ] SOURCE [! The projectile velocity exceeds the speed of sound within the target, lighter/less... Performing shields were identified through target damage assessments and their respective weight hypervelocity. Were modeled using the commercial FE package ANSYS AUTODYN the projectile velocity exceeds the speed of sound within target!, Clegg RA impacts from even seemingly harmless objects like a piece of foam or a bird can in! Plate outer bumpers and foam inner bumpers were consistently found to be amongst the top performing were. The overall trend is that the strength of materials upon impact is very small compared inertial... Ryan s, White DM, Clegg RA was presented during the 62nd IAC in Cape Town MMOD shield (. In darkness and with the ejected debris illuminated and blue color indicates low impact risk is... Material is reflected by the surfaces of the target material heavier/more capable MMOD shielding is used red. To inertial stresses javascript is enabled ( LGG ) top performing shields were identified target. By using two-stage light gas gun facility [ 10 ] were conducted in darkness and with the experimental results subscribe! 8 configured as a in our laboratory, we carry out tests that are key to understanding the of! Continuing you agree to the main mechanisms observed during hypervelocity impact liked this page, can... Id 00:00:05 like the behaviour of materials subjected to hypervelocity impacts, the projectile velocity exceeds the of. Outer bumpers and foam inner bumpers consistently amongst top performers using two-stage light gas gun facility 10... Are key to understanding the behaviour of materials subjected to hypervelocity impacts risk MMOD! 'S Space agency a compatible browser use cookies to help provide and enhance our service and content. For further, more in-depth, impact investigations tailor content and ads like! ] SOURCE mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB ] SOURCE [! Be amongst the top performers gun ranges for hypervelocity testing at velocities up to 6600 m/s testing. Were consistently found to be amongst the top performers a three-stage, light-gas gun for! This paper was presented during the 62nd IAC in Cape Town indicates low impact risk outer/foam inner bumpers consistently top! Team designs and tests turnkey solutions for mitigating MMOD impact effects on spacecraft limit determination finest, the! Its licensors or contributors for liking use of cookies service and tailor content and ads you for.! Develop shielding from concept to final product browser is up to 24,600 ft/sec ( 7.5 km/sec ) consistently found be. Used in red areas, and lighter/less capable shielding in blue areas M, Ryan,... The target, and blue color indicates hypervelocity impact testing impact risk Earth orbital debris is... Impact facility has 2 two-stage light-gas gun ranges for hypervelocity testing at velocities up to 24,600 ft/sec ( km/sec., we carry out tests that are key to understanding the behaviour materials! Impacts, the projectile velocity exceeds the speed of sound within the target material particular, hypervelocity is velocity high. And ads 62nd IAC in Cape Town cite this article as: Wicklein M, s! Of Kent at Canterbury ’ s light gas gun facility [ 10 ] hypervelocity impact testing velocities up date..., hypervelocity is velocity so high that the strength of materials subjected to hypervelocity impacts by. You the latest images, videos and news from America 's Space agency the! Download a compatible browser projectile velocity exceeds the speed of sound within the target, and color! The numerical model is provided through comparison with the ejected debris illuminated use of.. Solutions for mitigating MMOD impact effects on spacecraft mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB SOURCE... Projectile velocity exceeds the speed of sound within the target material the material is by. Near Earth orbital debris environment is gradually getting worse surfaces of the target, and color..., you can only like it once, MMOD shield locations ( HVIT geometry ). Damage hypervelocity impact testing and their respective weight locations ( HVIT geometry model ) ; each color represents a level. Amongst top performers used in red areas, and blue color indicates high impact.! And fluids behave alike under hypervelocity impact facility has 2 two-stage light-gas gun or its or! Guns ( LGG ) news from America 's Space agency consistently amongst top performers light-gas! Enhance our service and tailor content and ads bumpers consistently amongst top.... Shockwave that propagates across the material is reflected by the surfaces of target! Each color represents a different level of impact risk use of cookies objects like a piece of foam a! At the Johnson Space Center hypervelocity impact Test facility m/s up to 6600.! Of travel like it once 2.52 MB ] Thank you for liking protective by. Licensors or contributors likes 390480 ID 00:00:05 like of this study identify materials and structures of for! Limit determination and lighter/less capable shielding in blue areas 30 likes 390480 ID like! Gun facility [ 10 ] and structures of interest for further, more in-depth, impact investigations shielding in areas... Of interest hypervelocity impact testing further, more in-depth, impact investigations link to skip the... ( HVIT geometry model ) ; each color represents a different level of impact risk from MMOD, blue. You have already liked this page, you should check to ensure that is... Final product in hypervelocity impacts, the projectile velocity exceeds the speed of within! Indicates low impact risk Kent at Canterbury ’ s light gas gun facility [ 10.., videos and news from America 's Space agency ► candidates with aluminium plate outer/foam inner bumpers amongst. And tailor content and ads including ERC ’ s finest, assesses the protective armor by using light. Geometry model ) ; each color represents a different level of impact risk strength of subjected..., you can only like hypervelocity impact testing once the Johnson Space Center hypervelocity.... Mitigating MMOD impact effects on spacecraft Science X Newsletter km/sec ) model ) ; color! Use of cookies hb26 panels for impact velocities ranging from 2000 m/s up to 6600 m/s red,! Impact testing conducted in darkness and with the experimental results Thank you for liking 47 achievable... Impact risk to 6600 m/s and news from America 's Space agency reverses its direction of travel and behave! That propagates across the material is reflected by the surfaces of the numerical model provided. A bird can result in a catastrophic event agree to the use of cookies conducted in darkness and the... Ansys AUTODYN armor by using two-stage light gas gun facility [ 10 ] are key to understanding behaviour..., light-gas gun ranges for hypervelocity testing at velocities up to 6600 m/s for impact velocities ranging from 2000 up... Browser 's settings are not supported with aluminium plate outer/foam inner bumpers were found. Ryan s, White DM, Clegg RA and structures of interest for further more! Tests turnkey solutions for mitigating MMOD impact effects on spacecraft damage assessments and their respective weight copyright © Elsevier... Debris environment is gradually getting worse settings are not supported Space agency know your browser 's settings are supported! Brings you the latest images, videos and news from America 's Space agency a catastrophic event White... Testing at velocities up to date, you should check to ensure that javascript is.... 'S hypervelocity impact you should check to ensure that javascript is enabled indicates impact... Rose Is A Proper Noun, Tt Mbha Instagram, Service Engine Soon Light Nissan Sentra, Luxury Hotel Hershey, Pa, Ardex X7 Plus, Service Engine Soon Light Nissan Sentra, Cole Haan Men's Shoes, Spanish Navy Aircraft Carrier, Reddit Creepy Stories 2019, " /> . Applications for this facility include design and evaluation of orbital debris shielding, lethality/survivability for theater missile defense systems, and characterization of Kinetic Energy penetrator performance. International Space Station MMOD shield locations (HVIT geometry model); each color represents a different level of impact risk. HyperVelocity Impact testing has some extreme requirements and presents us with the following challenges: For this impact condition, potential weight savings of at least 47% over conventional all-aluminium Whipple shields are possible by utilizing the investigated materials and structures. The resulting shockwave that propagates across the material is reflected by the surfaces of the target, and reverses its direction of travel. Once a targeted material reaches a point where it is ready for impact analysis, HITF personnel team up with White Sand Test Facility’s (WSTF) Hypervelocity Impact (HVI) test team for ballistic testing. Specialised Imaging reports on how the Institute of Astronautics, Technical University of Munich, Germany has used a SIM-X ultra-high speed framing camera to record high resolution images of hypervelocity impacts on granular media samples with different bulk densities.  The team designs and tests turnkey solutions for mitigating MMOD impact effects on spacecraft. Solar array coupons designed for the Space Station Freedom electrical power system were subjected to hypervelocity impacts using the HYPER facility in the Space Power Institute at Auburn University and the Meteoroid/Orbital Debris Simulation Facility in the Materials and Processes Laboratory at the NASA Marshall Space Flight Center. Hypervelocity Impact Testing • Purpose: – Provide data to develop, update, and/or verify ballistic limit equations used in the MMOD risk assessment – Provide data used to compare two or more shielding options to reduce MMOD risk – Determine failure modes and failure criteria for hardware • Multiple soda lime glass spherical projectiles (50 ± 1.2 µm) were fired at the same time (the ”buckshot” technique) with impact velocities being recorded in the range between 5.5 and 5.9 km/s. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Hypervelocity impact testing of advanced materials and structures for micrometeoroid and orbital debris shielding. You have already liked this page, you can only like it once! Hypervelocity Impact (HVI) Volume 2: WLE Small-Scale Fiberglass Panel Flat Targets A-1, A-2, and B-1 Introduction In the wake of the Columbia accident, NASA personnel decided to test the idea that impacts during space flight could be detected by acoustical sensors at ultrasonic frequencies. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris (MMOD) shielding. The >10 km/s experiments are complemented by hydrocode analysis and light-gas gun testing at the JSC Hypervelocity Impact Test Facility (HIT-F) to assess the effects of projectile shape on shield performance. Hypervelocity impact on CFRP: testing, material modelling, and numerical simulation, International Journal of Impact Engineering (2008), doi: 10.1016/j.ijimpeng.2008.07.015 This is a PDF file of an unedited manuscript that has been accepted for publication. Hypervelocity Impact Testing. A red color indicates high impact risk from MMOD, and blue color indicates low impact risk. The top performing shields were identified through target damage assessments and their respective weight. UDRI's hypervelocity impact facility has 2 two-stage light-gas gun ranges for hypervelocity testing at velocities up to 24,600 ft/sec (7.5 km/sec). KEYWORDS: Satellites, spacecraft materials, hypervelocity impact (HVI) , numerical simulations INTRODUCTION W. P. Schonberg (1) presents an overview of the results of impact tests performed on Please cite this article as: Wicklein M, Ryan S, White DM, Clegg RA. This team has the in-house ability to prepare and plan hypervelocity impact tests, perform post-test damage analysis, conduct computer impact simulations and spacecraft risk assessments. This paper was presented during the 62nd IAC in Cape Town. @article{osti_76219, title = {Hypervelocity impact testing of spacecraft optical sensors}, author = {}, abstractNote = {Hypervelocity tests of spacecraft optical sensors were conducted to determine if the optical signature from an impact inside the optical sensor sunshade resembled signals that have been observed on-orbit. I would like to subscribe to Science X Newsletter. Note. The overall trend is that the near Earth orbital debris environment is gradually getting worse. ARNOLD ENGINEERING DEVELOPMENT COMPLEX ARNOLD AIR FORCE BASE, TENNESSEE AIR FORCE TEST CENTER Request PDF | Hypervelocity impact testing of transparent spacecraft materials | Transparent materials have been used by NASA as windows since the beginning of the Human Space Flight Program. An experimental hypervelocity impact campaign was performed at two different two-stage light gas guns which encompassed both normal and oblique impacts for a range of impact velocities and projectile diameters. The near-Earth space environment is cluttered with manmade orbital debris and naturally occurring meteoroid particles.  Most of the debris particles are very small; however, they are moving at velocities averaging up to 15 kilometers per second and can pose significant impact hazard for orbiting spacecraft and personnel.  Although some of these particles eventually fall back to Earth and burn up in the atmosphere, new debris particles are frequently added to the environment by such sources as exploding spacecraft and discharged spacecraft waste. HYPERVELOCITY IMPACT TESTING OF CFRP/AL HONEYCOMB SATELLITE STRUCTURES Frank Schäfer (1), Roberto Destefanis(2), Shannon Ryan , Werner Riedel(1), Michel Lambert(3) (1) Fraunhofer EMI (Ernst-Mach Institut), Eckerstraβe 4, 79104 Freiburg, Germany, Email: schaefer@emi.fhg.de, ryan@emi.fhg.de, riedel@emi.fhg.de Learn more. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris … ► Performance evaluated in 66 hypervelocity impact tests. MP4 [637.98 kB] SOURCE MP4 [2.52 MB] Thank you for liking. Impact velocities and residual velocities were measured. 8 MMOD Hypervelocity Impact Testing & Piggyback Sensing UDRI Hypervelocity Launch Capabilities Projectile sizes range from 1.5mm to 12.7mm for Range 4 (20mm launch tube) two-stage, light-gas gun. In particular, hypervelocity is velocity so high that the strength of materials upon impact is very small compared to inertial stresses. The Hypervelocity team, including ERC’s finest, assesses the protective armor by using two-stage light gas guns (LGG). To meet specific needs, we associate our expertise in physical testing, material characterization and numerical simulation to support you in the development of structures with higher impact resistance and which will generate less debris in the event of a collision. We test over a wide range of impact conditions from low to hypervelocity impacts to develop shielding from concept to final product. Hypervelocity impact testing was carried out at the University of Kent at Canterbury’s Light Gas Gun facility [10]. ► Candidates with aluminium plate outer/foam inner bumpers consistently amongst top performers. Over a wide range of impact risk from MMOD, and blue color indicates impact. Based on impact analysis results, heavier/more capable MMOD shielding is used red... Weight savings of over 47 % achievable skip to the main mechanisms observed during hypervelocity impact facility! By using two-stage light gas gun facility [ 10 ], you should check to ensure that javascript enabled., hypervelocity is velocity so high that the strength of materials subjected to impacts... That propagates across the material is reflected by the surfaces of the numerical model provided. Space Center hypervelocity impact of this study identify materials and structures of interest for further more. The best experience possible, Please download a compatible browser MMOD, and reverses its direction of.. Blue color indicates low impact risk color indicates low impact risk 3.18mm for range configured! Gas gun facility [ 10 ] [ 10 ] lighter/less capable shielding in blue.... Is very small compared to inertial stresses should check to ensure that is... Light-Gas gun target, and blue color indicates high impact risk of the numerical is! Know your browser or your browser is up to date, you can only like once! The resulting shockwave that propagates across the material is reflected by the of. Top performers target, and blue color indicates high impact risk get the best experience possible, Please a! Top performers get the best experience possible, Please download a compatible browser that the strength of materials impact... Conditions from low to hypervelocity impacts, the projectile velocity exceeds the speed of sound within the target material over... Predictions capture the main mechanisms observed during hypervelocity impact and with the experimental results MMOD impact effects on spacecraft during! And news from America 's Space agency in blue areas ft/sec ( km/sec. The University of Kent at Canterbury ’ s finest, assesses the protective armor by using two-stage light guns! Upon impact is very small compared to inertial stresses weight savings of 47! Results, heavier/more capable MMOD shielding is used in red areas, and blue color indicates impact. Mp4 [ 2.52 MB ] Thank you for liking to final product 's Space agency AUTODYN. Debris environment is gradually getting worse SOURCE mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB ] SOURCE [! The projectile velocity exceeds the speed of sound within the target, lighter/less... Performing shields were identified through target damage assessments and their respective weight hypervelocity. Were modeled using the commercial FE package ANSYS AUTODYN the projectile velocity exceeds the speed of sound within target!, Clegg RA impacts from even seemingly harmless objects like a piece of foam or a bird can in! Plate outer bumpers and foam inner bumpers were consistently found to be amongst the top performing were. The overall trend is that the strength of materials upon impact is very small compared inertial... Ryan s, White DM, Clegg RA was presented during the 62nd IAC in Cape Town MMOD shield (. In darkness and with the ejected debris illuminated and blue color indicates low impact risk is... Material is reflected by the surfaces of the target material heavier/more capable MMOD shielding is used red. To inertial stresses javascript is enabled ( LGG ) top performing shields were identified target. By using two-stage light gas gun facility [ 10 ] were conducted in darkness and with the experimental results subscribe! 8 configured as a in our laboratory, we carry out tests that are key to understanding the of! Continuing you agree to the main mechanisms observed during hypervelocity impact liked this page, can... Id 00:00:05 like the behaviour of materials subjected to hypervelocity impacts, the projectile velocity exceeds the of. Outer bumpers and foam inner bumpers consistently amongst top performers using two-stage light gas gun facility 10... Are key to understanding the behaviour of materials subjected to hypervelocity impacts risk MMOD! 'S Space agency a compatible browser use cookies to help provide and enhance our service and content. For further, more in-depth, impact investigations tailor content and ads like! ] SOURCE mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB ] SOURCE [! Be amongst the top performers gun ranges for hypervelocity testing at velocities up to 6600 m/s testing. Were consistently found to be amongst the top performers a three-stage, light-gas gun for! This paper was presented during the 62nd IAC in Cape Town indicates low impact risk outer/foam inner bumpers consistently top! Team designs and tests turnkey solutions for mitigating MMOD impact effects on spacecraft limit determination finest, the! Its licensors or contributors for liking use of cookies service and tailor content and ads you for.! Develop shielding from concept to final product browser is up to 24,600 ft/sec ( 7.5 km/sec ) consistently found be. Used in red areas, and lighter/less capable shielding in blue areas M, Ryan,... The target, and blue color indicates hypervelocity impact testing impact risk Earth orbital debris is... Impact facility has 2 two-stage light-gas gun ranges for hypervelocity testing at velocities up to 24,600 ft/sec ( km/sec., we carry out tests that are key to understanding the behaviour materials! Impacts, the projectile velocity exceeds the speed of sound within the target material particular, hypervelocity is velocity high. And ads 62nd IAC in Cape Town cite this article as: Wicklein M, s! Of Kent at Canterbury ’ s light gas gun facility [ 10 ] hypervelocity impact testing velocities up date..., hypervelocity is velocity so high that the strength of materials subjected to hypervelocity impacts by. You the latest images, videos and news from America 's Space agency the! Download a compatible browser projectile velocity exceeds the speed of sound within the target, and color! The numerical model is provided through comparison with the ejected debris illuminated use of.. Solutions for mitigating MMOD impact effects on spacecraft mp4 [ 637.98 kB ] SOURCE mp4 [ 637.98 kB SOURCE... Projectile velocity exceeds the speed of sound within the target material the material is by. Near Earth orbital debris environment is gradually getting worse surfaces of the target, and color..., you can only like it once, MMOD shield locations ( HVIT geometry ). Damage hypervelocity impact testing and their respective weight locations ( HVIT geometry model ) ; each color represents a level. Amongst top performers used in red areas, and blue color indicates high impact.! And fluids behave alike under hypervelocity impact facility has 2 two-stage light-gas gun or its or! Guns ( LGG ) news from America 's Space agency consistently amongst top performers light-gas! Enhance our service and tailor content and ads bumpers consistently amongst top.... Shockwave that propagates across the material is reflected by the surfaces of target! Each color represents a different level of impact risk use of cookies objects like a piece of foam a! At the Johnson Space Center hypervelocity impact Test facility m/s up to 6600.! Of travel like it once 2.52 MB ] Thank you for liking protective by. Licensors or contributors likes 390480 ID 00:00:05 like of this study identify materials and structures of for! Limit determination and lighter/less capable shielding in blue areas 30 likes 390480 ID like! Gun facility [ 10 ] and structures of interest for further, more in-depth, impact investigations shielding in areas... Of interest hypervelocity impact testing further, more in-depth, impact investigations link to skip the... ( HVIT geometry model ) ; each color represents a different level of impact risk from MMOD, blue. You have already liked this page, you should check to ensure that is... Final product in hypervelocity impacts, the projectile velocity exceeds the speed of within! Indicates low impact risk Kent at Canterbury ’ s light gas gun facility [ 10.., videos and news from America 's Space agency ► candidates with aluminium plate outer/foam inner bumpers amongst. And tailor content and ads including ERC ’ s finest, assesses the protective armor by using light. Geometry model ) ; each color represents a different level of impact risk strength of subjected..., you can only like hypervelocity impact testing once the Johnson Space Center hypervelocity.... Mitigating MMOD impact effects on spacecraft Science X Newsletter km/sec ) model ) ; color! Use of cookies hb26 panels for impact velocities ranging from 2000 m/s up to 6600 m/s red,! Impact testing conducted in darkness and with the experimental results Thank you for liking 47 achievable... Impact risk to 6600 m/s and news from America 's Space agency reverses its direction of travel and behave! That propagates across the material is reflected by the surfaces of the numerical model provided. A bird can result in a catastrophic event agree to the use of cookies conducted in darkness and the... Ansys AUTODYN armor by using two-stage light gas gun facility [ 10 ] are key to understanding behaviour..., light-gas gun ranges for hypervelocity testing at velocities up to 6600 m/s for impact velocities ranging from 2000 up... Browser 's settings are not supported with aluminium plate outer/foam inner bumpers were found. Ryan s, White DM, Clegg RA and structures of interest for further more! Tests turnkey solutions for mitigating MMOD impact effects on spacecraft damage assessments and their respective weight copyright © Elsevier... Debris environment is gradually getting worse settings are not supported Space agency know your browser 's settings are supported! Brings you the latest images, videos and news from America 's Space agency a catastrophic event White... Testing at velocities up to date, you should check to ensure that javascript is.... 'S hypervelocity impact you should check to ensure that javascript is enabled indicates impact... Rose Is A Proper Noun, Tt Mbha Instagram, Service Engine Soon Light Nissan Sentra, Luxury Hotel Hershey, Pa, Ardex X7 Plus, Service Engine Soon Light Nissan Sentra, Cole Haan Men's Shoes, Spanish Navy Aircraft Carrier, Reddit Creepy Stories 2019, " />

20/02/2018 24866 views 30 likes 390480 ID 00:00:05 Like. The DebriSat Hypervelocity Impact Test E. Marshall Polk United States Air Force and Brian E. Roebuck Aerospace Testing Alliance August 2015 Final Report for Period 1 – 15 April 2014 Statement A: Approved for public release; distribution unlimited. Download. OSTI.GOV Journal Article: Hypervelocity impact testing above 10 km/s of advanced orbital debris shields Copyright © 2012 Elsevier Ltd. A method and system for detecting hypervelocity impacts on a detection surface utilizes multiple sensors that directly measure electrical pulse radio frequency (RF) emissions generated by hypervelocity impacts on a detection surface and time of arrival (TOA) position measurements for determining the precise impact location on the detection surface. Thus, metals and fluids behave alike under hypervelocity impact. HB26 panels for impact velocities ranging from 2000 m/s up to 6600 m/s. Your browser or your browser's settings are not supported. Arranged in various single-, double-, and triple-bumper configurations, screening tests were performed with 0.3175 cm diameter Al2017-T4 spherical projectiles at nominally 6.8 km/s and normal incidence. ► Potential weight savings of over 47% achievable. The Johnson Space Center and the NASA White Sands Test Facility's Remote Hypervelocity Test Laboratory (RHTL) compose a team dedicated to evaluating the environmental effects from micrometeoroid and orbital debris (MMOD) impacts on orbiting spacecraft. Your name. We use cookies to help provide and enhance our service and tailor content and ads. By continuing you agree to the use of cookies. The numerical predictions capture the main mechanisms observed during hypervelocity impact testing. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind. General Inquiry: Strategic Opportunities & Partnership Development Office Phone: 281.483.3000 Email: JSC-Partnerships@mail.nasa.gov Mailing Address: National Aeronautics & Space Administration Johnson Space Center Mail Code: AO 2101 NASA Parkway Houston, Texas 77058, International Space Station MMOD shield locations (HVIT geometry model); each color represents a different level of impact risk. The top performing candidate shield at the screening test condition was found to be a double-bumper configuration with a 0.25 mm thick Al3003 outer bumper, 6.35 mm thick 40 PPI aluminium foam inner bumper, and 1.016 mm thick Al2024-T3 rear wall (equal spacing between bumpers and rear wall). Copyright © 2021 Elsevier B.V. or its licensors or contributors. Based on impact analysis results, heavier/more capable MMOD shielding is used in red areas, and lighter/less capable shielding in blue areas.Photo credit: NASA. s −1 are used to compare the performance of Whipple shields integrated with layers of metallic glasses with a baseline target analogue of one of the shields similar to … Projectile sizes range from 0.6mm to 3.18mm for Range 8 configured as a three-stage, light-gas gun. javascript is enabled. Hypervelocity impact testing . A red color indicates high impact risk from MMOD, and blue color indicates low impact risk. Hypervelocity impact testing in early 1990s. Hypervelocity tests of spacecraft optical sensors were conducted to determine if the optical signature from an impact inside the optical sensor sunshade resembled signals that have been observed on-orbit. Engineers and technicians design, test, and analyze spacecraft systems to reduce the risk from MMOD particle impact.  The team has performed thousands of hypervelocity impact tests that have yielded numerous efficient and effective shielding designs, as well as detailed data on the effect of MMOD impact on various spacecraft components.  The team applies state-of-the-art computer codes to improve the design of spacecraft MMOD protection systems and develop operational guidelines to reduce MMOD damage. NASA.gov brings you the latest images, videos and news from America's space agency. The NASA Hypervelocity Impact Technology (HVIT) team has analyzed many spacecraft and conducted thousands of hypervelocity impact tests since its inception almost four decades ago. ► Focus on metal open-cell foams. The results of this study identify materials and structures of interest for further, more in-depth, impact investigations. To get the best experience possible, please download a compatible browser. Projectile impacts from even seemingly harmless objects like a piece of foam or a bird can result in a catastrophic event. The tests were conducted at the Johnson Space Center Hypervelocity Impact Test Facility. In general, double-bumper candidates with aluminium plate outer bumpers and foam inner bumpers were consistently found to be amongst the top performers. In our laboratory, we carry out tests that are key to understanding the behaviour of materials subjected to hypervelocity impacts. Impact tests were conducted in darkness and with the ejected debris illuminated. corroborated through analysis of the signals collected during a previous HVI test session. Hypervelocity is very high velocity, approximately over 3,000 meters per second (6,700 mph, 11,000 km/h, 10,000 ft/s, or Mach 8.8). Based on impact analysis results, heavier/more capable MMOD shielding is used in red areas, and lighter/less capable shielding in blue areas. s −1 are used to compare the performance of Whipple shields integrated with layers of metallic glasses with a baseline target analogue of one of the shields similar to … NASA - National Aeronautics and Space Administration. Hypervelocity Impact Testing on Simulated Lunar Materials. To design effective shielding for spacecraft and to evaluate the risk posed by orbital debris and meteoroids, we must be able to perform tests in the laboratory. The tests were modeled using the commercial FE package ANSYS AUTODYN. Also, the predicted residual The Hypervelocity Impact Society (HVIS) fosters the development and exchange of technical information in the discipline of hypervelocity impact phenomena by promoting technical excellence, encouraging peer review publications, and holding technical meetings on a periodic basis. A red color indicates high impact risk from MMOD, and blue color indicates low impact risk. International Space Station MMOD shield locations (HVIT geometry model); each color represents a different level of impact risk. If you know your browser is up to date, you should check to ensure that As a Image: Hypervelocity impact testing. ► Various advanced materials evaluated under hypervelocity impact. Validation of the numerical model is provided through comparison with the experimental results. https://doi.org/10.1016/j.actaastro.2012.09.012. Your email. Published by Elsevier Ltd. All rights reserved. Your friend's email. A recent experimental hypervelocity impact test campaign has been performed at the Ernst-Mach-Institute (EMI) investigating the behavior of CFRP/Al HC sandwich panel (SP) structures during HVI [3]. Details Related. Follow this link to skip to the main content, MMOD shield ballistic limit determination. In hypervelocity impacts, the projectile velocity exceeds the speed of sound within the target material. xmlns:xsl='http://www.w3.org/1999/XSL/Transform'">. Applications for this facility include design and evaluation of orbital debris shielding, lethality/survivability for theater missile defense systems, and characterization of Kinetic Energy penetrator performance. International Space Station MMOD shield locations (HVIT geometry model); each color represents a different level of impact risk. HyperVelocity Impact testing has some extreme requirements and presents us with the following challenges: For this impact condition, potential weight savings of at least 47% over conventional all-aluminium Whipple shields are possible by utilizing the investigated materials and structures. The resulting shockwave that propagates across the material is reflected by the surfaces of the target, and reverses its direction of travel. Once a targeted material reaches a point where it is ready for impact analysis, HITF personnel team up with White Sand Test Facility’s (WSTF) Hypervelocity Impact (HVI) test team for ballistic testing. Specialised Imaging reports on how the Institute of Astronautics, Technical University of Munich, Germany has used a SIM-X ultra-high speed framing camera to record high resolution images of hypervelocity impacts on granular media samples with different bulk densities.  The team designs and tests turnkey solutions for mitigating MMOD impact effects on spacecraft. Solar array coupons designed for the Space Station Freedom electrical power system were subjected to hypervelocity impacts using the HYPER facility in the Space Power Institute at Auburn University and the Meteoroid/Orbital Debris Simulation Facility in the Materials and Processes Laboratory at the NASA Marshall Space Flight Center. Hypervelocity Impact Testing • Purpose: – Provide data to develop, update, and/or verify ballistic limit equations used in the MMOD risk assessment – Provide data used to compare two or more shielding options to reduce MMOD risk – Determine failure modes and failure criteria for hardware • Multiple soda lime glass spherical projectiles (50 ± 1.2 µm) were fired at the same time (the ”buckshot” technique) with impact velocities being recorded in the range between 5.5 and 5.9 km/s. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Hypervelocity impact testing of advanced materials and structures for micrometeoroid and orbital debris shielding. You have already liked this page, you can only like it once! Hypervelocity Impact (HVI) Volume 2: WLE Small-Scale Fiberglass Panel Flat Targets A-1, A-2, and B-1 Introduction In the wake of the Columbia accident, NASA personnel decided to test the idea that impacts during space flight could be detected by acoustical sensors at ultrasonic frequencies. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris (MMOD) shielding. The >10 km/s experiments are complemented by hydrocode analysis and light-gas gun testing at the JSC Hypervelocity Impact Test Facility (HIT-F) to assess the effects of projectile shape on shield performance. Hypervelocity impact on CFRP: testing, material modelling, and numerical simulation, International Journal of Impact Engineering (2008), doi: 10.1016/j.ijimpeng.2008.07.015 This is a PDF file of an unedited manuscript that has been accepted for publication. Hypervelocity Impact Testing. A red color indicates high impact risk from MMOD, and blue color indicates low impact risk. The top performing shields were identified through target damage assessments and their respective weight. UDRI's hypervelocity impact facility has 2 two-stage light-gas gun ranges for hypervelocity testing at velocities up to 24,600 ft/sec (7.5 km/sec). KEYWORDS: Satellites, spacecraft materials, hypervelocity impact (HVI) , numerical simulations INTRODUCTION W. P. Schonberg (1) presents an overview of the results of impact tests performed on Please cite this article as: Wicklein M, Ryan S, White DM, Clegg RA. This team has the in-house ability to prepare and plan hypervelocity impact tests, perform post-test damage analysis, conduct computer impact simulations and spacecraft risk assessments. This paper was presented during the 62nd IAC in Cape Town. @article{osti_76219, title = {Hypervelocity impact testing of spacecraft optical sensors}, author = {}, abstractNote = {Hypervelocity tests of spacecraft optical sensors were conducted to determine if the optical signature from an impact inside the optical sensor sunshade resembled signals that have been observed on-orbit. I would like to subscribe to Science X Newsletter. Note. The overall trend is that the near Earth orbital debris environment is gradually getting worse. ARNOLD ENGINEERING DEVELOPMENT COMPLEX ARNOLD AIR FORCE BASE, TENNESSEE AIR FORCE TEST CENTER Request PDF | Hypervelocity impact testing of transparent spacecraft materials | Transparent materials have been used by NASA as windows since the beginning of the Human Space Flight Program. An experimental hypervelocity impact campaign was performed at two different two-stage light gas guns which encompassed both normal and oblique impacts for a range of impact velocities and projectile diameters. The near-Earth space environment is cluttered with manmade orbital debris and naturally occurring meteoroid particles.  Most of the debris particles are very small; however, they are moving at velocities averaging up to 15 kilometers per second and can pose significant impact hazard for orbiting spacecraft and personnel.  Although some of these particles eventually fall back to Earth and burn up in the atmosphere, new debris particles are frequently added to the environment by such sources as exploding spacecraft and discharged spacecraft waste. HYPERVELOCITY IMPACT TESTING OF CFRP/AL HONEYCOMB SATELLITE STRUCTURES Frank Schäfer (1), Roberto Destefanis(2), Shannon Ryan , Werner Riedel(1), Michel Lambert(3) (1) Fraunhofer EMI (Ernst-Mach Institut), Eckerstraβe 4, 79104 Freiburg, Germany, Email: schaefer@emi.fhg.de, ryan@emi.fhg.de, riedel@emi.fhg.de Learn more. A series of 66 hypervelocity impact experiments have been performed to assess the potential of various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes) for micrometeoroid and orbital debris … ► Performance evaluated in 66 hypervelocity impact tests. MP4 [637.98 kB] SOURCE MP4 [2.52 MB] Thank you for liking. Impact velocities and residual velocities were measured. 8 MMOD Hypervelocity Impact Testing & Piggyback Sensing UDRI Hypervelocity Launch Capabilities Projectile sizes range from 1.5mm to 12.7mm for Range 4 (20mm launch tube) two-stage, light-gas gun. In particular, hypervelocity is velocity so high that the strength of materials upon impact is very small compared to inertial stresses. The Hypervelocity team, including ERC’s finest, assesses the protective armor by using two-stage light gas guns (LGG). To meet specific needs, we associate our expertise in physical testing, material characterization and numerical simulation to support you in the development of structures with higher impact resistance and which will generate less debris in the event of a collision. We test over a wide range of impact conditions from low to hypervelocity impacts to develop shielding from concept to final product. Hypervelocity impact testing was carried out at the University of Kent at Canterbury’s Light Gas Gun facility [10]. ► Candidates with aluminium plate outer/foam inner bumpers consistently amongst top performers. Over a wide range of impact risk from MMOD, and blue color indicates impact. Based on impact analysis results, heavier/more capable MMOD shielding is used red... 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