Ballistic limit evaluation of advanced shielding using numerical simulations
作者： Colin J. Hayhurst , Iain H.G. Livingstone , Richard A. Clegg , Roberto Destefanis , Moreno Faraud
DOI: 10.1016/S0734-743X(01)00100-2
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摘要: Abstract The advanced shielding concept employed for the Columbus module of International Space Station consists an aluminum bumper and intermediate shield Nextel Kevlar-epoxy. Until recently, lack adequate material models cloth Kevlar-epoxy has precluded practical usage hydrocodes in evaluating response these shields to hypervelocity impact threats. Recently hydrocode materials have been proposed [1,2] further development completion this model is reported paper. resulting models, now implemented AUTODYN-2D AUTODYN-3D, enables coupling orthotropic constitutive behavior with a non-linear (shock) equation state. compared light gas gun tests spheres on at velocities between 3.0 6.5km/s [3]. Reasonable correspondence obtained thus used perform preliminary assessment predicted ballistic limits from 7 11km/s. are limit curves derived basis that damage proportional projectile momentum
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