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首页> 外文会议>SEM IX International Congress on Experimental Mechanics June 5-8, 2000 Orlando, Florida >Micromechanical Modeling of High Energy Composites
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Micromechanical Modeling of High Energy Composites

机译：高能复合材料的微机械建模

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摘要

High-energy polymer-binded explosives (PBXs) are composed of high-energy crystaline particles and a rubbery binder. The volume fraction of particles is approximately 92 percent. The high-energy particles have a Young's modulus that is three orders of magnitude higher than that of the binder. Efforts are currently underway to model these materials based on material property inputs from molecular dynamics simulations Micromechanical studies using the generalized method of cells (GMC) show that the position and size of the particles have a significant effect on the homogenized mechanical properties of the composite. Stress bridging is also shown to affect the mechanical properties significantly. Micromechanical modeling is validated using experimental data for PBX-9501.
机译：高能聚合物结合炸药（PBX）由高能结晶颗粒和橡胶状粘结剂组成。颗粒的体积分数约为92％。高能粒子的杨氏模量比粘合剂的杨氏模量高三个数量级。基于分子动力学模拟的材料特性输入，目前正在努力对这些材料进行建模，使用通用细胞方法（GMC）进行的微机械研究表明，颗粒的位置和尺寸对复合材料的均质机械性能具有重要影响。应力桥接也显示出显着影响机械性能。使用PBX-9501的实验数据验证了微机械建模。

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