NUMERICAL ANALYSIS OF ELASTOPLASTIC BEHAVIOR OF FUNCTIONALLY GRADED FOAMS

摘要：

The objective of this work is to numerically investigate the elastoplastic behavior of functionally graded foams.We propose a 3D model of functionally graded foams based on the tetrakaidecahedral open cell.The variation in the cell wall thickness induces density gradient.Based on the finite element method,macroscopic elastic constants and initial yield stress against the relative density and grade variation are discussed in this paper.Through a systematic study we find that the grade variation significantly affects the Youngs modulus and the initial yield stress of the foams.

关键词： numerically investigate functionally graded foams elastoplastic behavior

作者: Z.M.Xu Y.J Jin T.J.Wang

作者单位: Key Laboratory for Strength and Vibration,Xian Jiaotong University,Xian 710049,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 776-779

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）