玻璃钢/复合材料Issue(3)：49-52,43,5.
EPP泡沫填充对铝蜂窝压缩性能的影响研究
EXPERIMENTAL AND NUMERICAL INVESTIGATION INTO THE COMPRESSION CHARACTERISTICS OF ALUMINUM HONEYCOMB PANEL FILLED WITH EPP
摘要
Abstract
The paper investigates the compression characteristics and failure process of aluminum honeycomb panel filled with EPP foam (Expanded polypropylene) by experiments and numerical simulations.The test results show that the peak load,mean crushing strength and absorbed energy of the filled aluminum honeycomb panel increased by 1.9％ ～43.33％,46.59％ ～ 179.53％ and 46.26％ ～ 179.04％,respectively,compared to the bare aluminum honeycomb panel.By comparing to the sum of bare panel and bare EPP foam,the mean crushing strength and absorbed energy of EPP foam filled aluminum honeycomb panel are increased by 2％ ～ 23.5％ and 3.9％ ～ 23.3％.In addition,the numerical results using the Ls-dyna software show the predicted failure mode and load-displacement curves agree well with the exprimental results,indicating that the EPP foam filling could resist the deformation of the honeycomb wall.This study indicates that aluminum honeycomb panel filled with EPP foam structure could effectively improve axial compression properties of bare aluminum honeycomb structure.关键词
轻量化/铝蜂窝/EPP泡沫/Ls-dyna/压缩性能Key words
lightweight/aluminum honeycomb/EPP foam/Ls-dyna/compression characteristics分类
通用工业技术引用本文复制引用
刘强,陈航..EPP泡沫填充对铝蜂窝压缩性能的影响研究[J].玻璃钢/复合材料,2017,(3):49-52,43,5.基金项目
国家自然科学基金(51675540) （51675540）
博士后科学基金(2015M582323) （2015M582323）
湖南省自然科学基金(2016JJ3039) （2016JJ3039）
