Stress-Induced Phase Transformation in Incompressible Materials and Stability of Multi-Phase Deformation  

作　　者：谢宇新 张义同 敖涛 任述光 

机构地区：[1]School of Mechanical Engineering, Tianjin University

出　　处：《Transactions of Tianjin University》2007年第3期195-199,共5页天津大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China(No.10272079);the Joint Grant from National Natural Science Foundation of China andthe Royal Society, UK(No.10511130192) .

摘　　要：The stress-induced phase transformation in incompressible materials and the interfacial stability of multi-phase deformation were studied. The existence of multi-phase deformation was determined through exploring whether the material would lose the strong ellipticity at some deformation gradient. Then, according to the stability criterion which is based on a quasi-static approach, the stability of the multi-phase deformation in incompressible materials was investigated by studying the growth/decay behaviour of the interface in the undeformed configuration when it is perturbed. At last, the way to define multi-phase deformation in incompressible materials was concluded and testified by a corresponding numerical example.The stress-induced phase transformation in incompressible materials and the interfacial stability of multi-phase deformation were studied. The existence of multi-phase deformation was determined through exploring whether the material would lose the strong ellipticity at some deformation gradient. Then, according to the stability criterion which is based on a quasi-static approach, the stability of the multi-phase deformation in incompressible materials was investigated by studying the growth/decay behaviour of the interface in the undeformed configuration when it is perturbed. At last, the way to define multi-phase deformation in incompressible materials was concluded and testified by a corresponding numerical example.

关 键 词：phase transformation interfacial stability incompressible material 

分 类 号：TB383.4[一般工业技术—材料科学与工程]