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Affiliation of Author(s):

理学院

Journal:

Computer Modeling in Engineering & Sciences

Key Words:

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

Abstract:

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.

Note:

栗雪娟

Co-author:

欧阳洁,周文

First Author:

lixuejuan

Indexed by:

Journal paper

Volume:

卷：96

Issue:

期：6

Page Number:

页：379-407

Translation or Not:

no

Date of Publication:

2013-12-01