摘要
通过优化几何模型,采用有限元法与有限体积法相结合,并在有限体积模拟阶段进行分步计算模拟的方法,成功地进行了一薄壁大挤压比铝型材挤压过程的数值模拟,获得了型材挤压过程中的材料流动速度、应力、应变和温度分布图,并对其结果进行讨论。
The large extrusion ratio forming of a complex thin-walled aluminum profile was simulated successfully in a new simulation system which was developed by integrated the Finite Element Method (FEM)and the multi-stage Finite Volume Method (FVM). To avoid the time-consuming and obtain the reasonable results during the simulation, optimized geometry models were employed in the pre-processor. The distributions of velocity,effective stress, effective strain and temperature during the extrusion process were obtained and discussed.
出处
《现代制造工程》
CSCD
2008年第4期95-99,共5页
Modern Manufacturing Engineering
关键词
铝型材
有限元法
有限体积法
数值模拟
Aluminum profile
Finite Element Method ( FEM )
Finite volume method
Numerical simulation