本文選題：聚乙烯 + 壓縮�。� 參考：《包裝工程》2016年19期

【摘要】：目的將聚乙烯泡沫靜態(tài)壓縮特性引入有限元中創(chuàng)建材料,并應(yīng)用于跌落沖擊進(jìn)行過載仿真分析。方法通過聚乙烯泡沫靜態(tài)壓縮實(shí)驗(yàn),得到材料真實(shí)應(yīng)力-應(yīng)變曲線,并引入基于Ansys的Crushable Foam模型,最后仿真分析聚乙烯泡沫緩沖系統(tǒng)的跌落沖擊過載,并與跌落實(shí)驗(yàn)結(jié)果進(jìn)行對比分析。結(jié)果聚乙烯泡沫緩沖系統(tǒng)的仿真沖擊加速度曲線與跌落實(shí)驗(yàn)曲線趨勢基本吻合。結(jié)論基于Crushable Foam模型的聚乙烯泡沫靜態(tài)壓縮性能的引入可行、有效,并為非線性緩沖系統(tǒng)有限元分析提供了參考價(jià)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.
【作者單位】： 西南技術(shù)工程研究所;陸軍航空兵軍事代表局駐成都地區(qū)軍事代表室;
【分類號】：TB485.1

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