聚乙烯泡沫缓冲系统跌落冲击过载仿真分析

发布时间：2018-04-29 14:23

本文选题：聚乙烯 + 压缩　；参考：《包装工程》2016年19期

【摘要】：目的将聚乙烯泡沫静态压缩特性引入有限元中创建材料,并应用于跌落冲击进行过载仿真分析。方法通过聚乙烯泡沫静态压缩实验,得到材料真实应力-应变曲线,并引入基于Ansys的Crushable Foam模型,最后仿真分析聚乙烯泡沫缓冲系统的跌落冲击过载,并与跌落实验结果进行对比分析。结果聚乙烯泡沫缓冲系统的仿真冲击加速度曲线与跌落实验曲线趋势基本吻合。结论基于Crushable Foam模型的聚乙烯泡沫静态压缩性能的引入可行、有效,并为非线性缓冲系统有限元分析提供了参考价值。
[Abstract]:Aim to introduce the static compression characteristics of polyethylene foam into finite element method and apply it to the simulation analysis of drop impact. Methods the true stress-strain curves of polyethylene foam were obtained by static compression experiments, and Crushable Foam model based on Ansys was introduced. Finally, the drop impact overload of PE foam buffer system was simulated and analyzed. The results are compared with the results of drop test. Results the simulated impact acceleration curve of PE foam buffer system was basically consistent with the trend of falling experiment curve. Conclusion the static compression performance of polyethylene foam based on Crushable Foam model is feasible and effective, and it provides reference value for the finite element analysis of nonlinear buffer system.
【作者单位】：西南技术工程研究所;陆军航空兵军事代表局驻成都地区军事代表室;
【分类号】：TB485.1

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