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Simulation of orbital debris impact on the Space Shuttle wing leading edge

机译:轨道碎片撞击航天飞机机翼前缘的模拟

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A series of three dimensional hypervelocity impact simulations has been performed to study the effects of orbital debris impact on the Space Shuttle wing leading edge. The simulations employed an improved hybrid particle-finite element method and an orthotropic elastic-plastic material model recently developed for reinforced carbon-carbon. The simulation results are consistent with the available experimental data, and suggest the use of momentum scaling to estimate damage effects for impact conditions outside the range of current light gas gun technology. Projectile shape and orientation effects appear to be modest for flat plate projectiles at impact velocities above the ballistic limit.
机译:已经进行了一系列的三维超高速撞击模拟,以研究轨道碎片撞击对航天飞机机翼前缘的影响。模拟采用改进的混合粒子有限元方法和最近开发的用于增强碳-碳的正交各向异性弹塑性材料模型。仿真结果与可用的实验数据一致,并建议使用动量缩放来估计当前轻型气枪技术范围之外的冲击条件下的破坏效果。对于平板弹丸,在高于弹道极限的冲击速度下,弹丸的形状和定向效应似乎不大。

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