包装学报2025，Vol.17Issue(3)：36-45,10.DOI:10.20269/j.cnki.1674-7100.2025.3005
EVA闭孔泡沫静动态压缩与冲击的仿真分析
Simulation Analysis of Static and Dynamic Compression and Impact of EVA Closed Cell Foam
摘要
Abstract
Static and dynamic compression tests and finite element simulations are conducted on EVA closed cell foam materials to investigate the cushioning performance of EVA closed cell foam with different densities and the reliability of the simulations.Data such as stress-strain curves are obtained from static and dynamic compression tests of closed cell foams as a way to further analyze their mechanical properties.The Mat83 intrinsic model in LS-DYNA is selected to establish the finite element model of EVA closed cell foam,and the simulation results are compared with the test results under the same working condition.In the static and dynamic compression tests,as the density becomes larger,the stress of the EVA closed cell foam with the same strain increases,and the maximum energy absorption of the EVA closed cell foam becomes larger,while there will be an intermediate density of the EVA closed cell foam with the best cushioning effect under different working conditions.In terms of simulation,the simulation curves of Mat83 intrinsic model in LS-DYNA are in good agreement with the experimental curves.The Mat83 intrinsic model in LS-DYNA can well simulate the mechanical behavior of EVA closed cell foam in dynamic impact.关键词
EVA闭孔泡沫/静动态压缩/力学性能/有限元/LS-DYNAKey words
EVA closed cell foam/static and dynamic compression/mechanical analysis/finite element/LS-DYNA分类
通用工业技术引用本文复制引用
叶润杰,孙德强,马兴元,司博涵..EVA闭孔泡沫静动态压缩与冲击的仿真分析[J].包装学报,2025,17(3):36-45,10.基金项目
国家自然科学基金资助项目(51575327) （51575327）
陕西省科技厅陕西省创新能力支撑计划项目(2025JC-GXPT-022) （2025JC-GXPT-022）
陕西省科技厅中试基地建设项目(2023ZSJD-06) （2023ZSJD-06）
