泡沫铝压缩力学行为的有限元仿真  

Finite Element Simulation of Foamed Aluminum Compression Behavior

作　　者：于英华[1] 杨志[2] 梁冰[3] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000 [2]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000 [3]辽宁工程技术大学力学与工程学院,辽宁阜新123000

出　　处：《计算机仿真》2010年第7期317-320,341,共5页Computer Simulation

基　　金：辽宁省教育厅科学技术研究(2008S106)

摘　　要：为推动泡沫铝性能和应用研究,为提高刚度和强度,必须加强泡沫铝力学行为的研究。根据开孔泡沫铝的结构特点,对其结构进行了合理的简化,采用ANSYS/LS-DYNA软件对对泡沫铝压缩行为进行有限元仿真研究,得出了泡沫铝压缩变形过程和泡沫铝应力(应变关系)结构参数(泡沫铝孔径、泡沫铝相等密度)及应变率的变化规律。证明规律与物理实验研究结果相一致,从而证明了有限元仿真方法的合理性和可行性。In order to push forward the study on properties and applying of foamed aluminum,the study on mechanical behavior of foamed aluminum must be intensified.In this paper,the structure of foamed aluminum is simplified by it＇s structure characteristics.Based on that,finite element simulation of foamed aluminum compression behavior is studied with ANSYS /LS - DYNA.The results derived from the simulation of deformation process of foamed aluminum and influence on compressing stress - strain relation with foamed aluminum＇ s geometrical parameter（cell diameter,relative density） as well as strain rate consistent with experiment results from another papers.It can be proved that this finite element simulation method is reasonable and feasible.

关 键 词：泡沫铝 压缩行为 有限元仿真 

分 类 号：O348.7[理学—固体力学]