铸造热应力场数值模拟研究的最新进展  

The Present Development of Thermal Stress Field Numerical Simulation Technology of Casting Solidification Process

作　　者：廖敦明[1] 林汉同[1] 刘瑞祥[1] 杨宠[1] 周建兴[1] 

机构地区：[1]华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《现代铸铁》2000年第4期4-7,共4页Modern Cast Iron

摘　　要：时至今日，铸造充型、凝固过程数值模拟已经进入了工程实用化阶段，铸造过程计算机模拟仿真的研究，重点正在由宏观转向微观，同时热应力场分析仍是宏观模拟的研究热点和难点之一。本文重点介绍了热应力场数值模拟采用的数学模型、数值方法及最新进展，并展望了今后的发展趋势。The result of mold filling simulation and solidification modeling during foundry process can now be used to guide practical production.The emphasis of numerical analysis is changing from macro－ simulation to micro－ modeling， but thermal stress analysis is still one of hot and difficult area of the former.In this paper,the latest development of thermo－ stress field numerical simulation is described,mathematical model and numerical methods of stress field simulation are also studied,future development is forcasted too.

关 键 词：热应力场 数值模拟 有限差分法 铸造 

分 类 号：TG213[金属学及工艺—铸造] O242.1[理学—计算数学]