An extended cyclic plasticity model at finite deformations describing the Bauschinger effect and ratchetting behaviour

摘要：

　　A popular cyclic plasticity model at small deformations is extended to finite deformations for describing the Bauschinger effect and ratchetting behaviour by considering the combined isotropic and kinematic hardening rules. The model is based on the multiplicative decomposition of deformation gradient into elastic and inelastic parts. Following, a further multiplicative decomposition of inelastic part of deformation gradient into energetic and dissipative parts is adopted to extend the popular Ohno-Karim nonlinear kinematic hardening rule. Finally, numerical examples are carried out to validate the proposed model under strain controlled and stress controlled cyclic loadings.

关键词： Finite deformation cyclic plasticity ratchetting kinematic hardening Bauschinger effect

作者: Yilin Zhu Guozheng Kang Qianhua Kan Chao Yu Jun Ding

作者单位: Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu,610031,China

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-11

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）