ELASTO-PLASTIC DYNAMIC EXPLICIT ANALYSIS OF COLD RING ROLLING PROCESS

摘要：

A special elasto-plastic dynamic finite element code named RingForm has been developed to analyze cold ring rolling process. Central difference method was introduced to solve the dynamic explicit finite element equations. Strain state was estimated by the value of yield function of the last and the present time step. To reduce the accumulative error caused by elasto-plastic constitutive relations, the radial return algorithm was employed. In comparison with the experimental results, the cold ring rolling process of a ring with rectangular section has been simulated to verify the accuracy and stability of the system solver.

关键词： elasto-plastic dynamic explicit radial return algorithm cold ring rolling

作者: Xuebin Zhang Zhigang Li Yuqi Liu Minghua Wu

作者单位: State key laboratory of material processing and die & mould technology, huazhong university of science and technology,wuhan 430074,P.R.C.

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）