铸件热应力场数值模拟

廖敦明; 陈立亮; 刘瑞祥; 林汉同

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铸件热应力场数值模拟
Numerical Simulation for Thermal Stress Field in the Castings
2003年第6期页码：30-32
纸质出版日期： 2003 ，
DOI：

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[1]廖敦明,,,,,,,,,,陈立亮,,,,,,,,,,刘瑞祥,,,,,,,,,,林汉同.铸件热应力场数值模拟[J].特种铸造及有色合金,2003(06):30-32+68-69.

Liao Dunming Chen Liliang Liu Ruixiang Lin Hantong. Numerical Simulation for Thermal Stress Field in the Castings[J]. Special Casting & Nonferrous Alloys, 2003,(6):30-32.
[1]廖敦明,,,,,,,,,,陈立亮,,,,,,,,,,刘瑞祥,,,,,,,,,,林汉同.铸件热应力场数值模拟[J].特种铸造及有色合金,2003(06):30-32+68-69. DOI：

Liao Dunming Chen Liliang Liu Ruixiang Lin Hantong. Numerical Simulation for Thermal Stress Field in the Castings[J]. Special Casting & Nonferrous Alloys, 2003,(6):30-32. DOI：

摘要

基于有限差分法（FDM）对铸造过程热应力场进行了三维数值模拟研究

并对标准应力框试件和箱体铸件进行了热应力场模拟

得到比较满意的结果。此方法使得铸件应力应变分析与传热分析使用同一离散模型

避免了FDM/FEM不同模型之间的节点匹配及单元温度载荷传递

能使流动场、温度场、应力场数值模拟统一采用差分格式

Abstract

Based on finite differential method （FDM）

3D numerical simulation for casting thermal stress was conducted. The thermal stress of a standard stress frame sample and a case casting were simulated and the satisfactory results were obtained. The method used identical discrete model in analysis of stress/strain and heat transfer so as to avoid the node match and load delivery of unit temperature in different model of FDM/FEM. Therefore

the unified differential method can be used in simulation for flow field

temperature field and stress field.