Performance of the EFG method for static shakedown analysis for non-linear kinematic hardening structures
Shakedown analysis is an extension of plastic limit analysis to the case of variable repeated loads. It allows for effects such as accumulation of plastic strain increments over subsequent load cycles as well as the low-cycle fatigue to be accounted for. This paper presents a solution procedure based on the element free Galerkin (EFG) method for static lower bound shakedown analysis of bounded kinematic hardening structures. The numerical implementation is very simple and convenient because it is only necessary to construct an array of nodes in the domain under consideration. An overlay model is applied to simulate non-linear kinematic hardening behaviour. Numerical examples demonstrate that it is feasible and effective to determine the shakedown loads of bounded kinematic hardening structures by using the EFG method and non-linear programming.
shakedown analysis kinematic hardening EFG method residual stress nonlinear programming
S. S. Chen Y. H. Liu Z. Z. Cen
Department of Engineering Mechanics, Tsinghua University, Beijing, 100084 China
国际会议
第三届亚太国际工程中计算方法学术会议暨第五届全国工程中边界元、无网格等数值方法学术会议(ICOME2009)
南京
英文
1-9
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）