Yield criterion of nanoporous materials under complez stress states

摘要：

Yield criterion of nanoporous materials subjected to triaxial stress states is explored through incorporating the effect of surface energy into a classical continuum yield function of their conventional porous counterparts.The yield curves on an octahedral plane are shown to be functions of the surface properties and void size.The size dependence of the yield criterion of nanoporous materials highlights the importance of the surface in analyzing the strength of nanostructures.The present results demonstrate a fundamental framework to extend continuum strength theories to nano-scale with substantial surface effect.

关键词： Nanoporous Yield criterion Surface Size effect

作者: Liujuan Zhu Wenzhong Cai Shan-Tung Tu

作者单位: Shanghai Institute of Technology,Shanghai 200235,China Nanjing University of Technology,Nanjing 210009,China Nanjing University of Technology,Nanjing 210009,China East China University of Science and Technolog

会议类型: 国际会议

会议名称: 国际断裂力学2009年会

会议地点: 成都

会议语种:英文

页码: 325-329

在线出版日期: 2009-10-16（万方平台首次上网日期，不代表论文的发表时间）