铸件热应力模拟中铸件/型(芯)相互作用的研究进展  

Review on the Interface Interaction Between the Casting and Mold(Core) in Thermal Stress Analysis of Castings

作　　者：徐艳[1] 康进武[1] 黄天佑[1] 胡永沂[1] 

机构地区：[1]清华大学机械工程系清华大学先进成形制造重点实验室,北京100084

出　　处：《铸造》2005年第12期1187-1191,共5页Foundry

摘　　要：铸造过程热应力分析是当前铸件数值模拟领域的研究重点和热点之一。其中铸件/型(芯)之间的相互作用的处理直接影响铸件铸造过程热应力分析的准确性。介绍了国内外处理铸件/型(芯)热力相互作用的研究进展,接触单元法是三维复杂铸件应力模拟发展的趋势。文章还介绍了砂型材料高温力学性能的研究情况。The analysis of thermal stress is a focus in the numerical simulation of solidification processes of castings. The accuracy of stress result is greatly affected by the disposal of interface interaction between the casting and mold or core. In this paper the research about the thermo-mechanical interaction was reviewed. Using contact element method is a trend in 3-D stress simulation. And the research on the high-temperature mechanical behavior of mould sand was introduced.

关 键 词：铸件/型(芯)相互作用 应力分析 接触单元 

分 类 号：TG213[金属学及工艺—铸造]