所属单位：

理学院

发表刊物：

Computer Modeling in Engineering & Sciences

关键字：

中文关键字：三维，相变，热残余应力，翘曲，工艺参数，英文关键字：3D, phase-change, thermal residual stress, warpage

摘要：

The three-dimensional (3D) mathematical models for thermal residual stress and warpage are proposed in injection molding, in which the temperature model is rebuilt by considering the phase-change effect to improve the computational accuracy. The 3D thermal residual stress model is transformed into the incremental displacement model so that the boundary conditions can be imposed easily. A modified finite element neural network (FENN) method is used for solving 3D warpage model based on the advantages of finite element method and neural network. The influence of phase-change on temperature is discussed. The numerical simulations of thermal residual stress and warpage are realized, and the influences of processing parameters on thermal residual stress and warpage are studied. The numerical results are in accordance with the results in related literature and the theoretic analysis.

备注：

栗雪娟

合写作者：

欧阳洁,周文

第一作者：

栗雪娟

论文类型：

期刊论文

卷号：

卷：96

期号：

期：6

页面范围：

页：379-407

是否译文：

否

发表时间：

2013-12-01