金属成形过程的RKPM模拟关键技术研究  

Study on the Key Technology of RKPM Simulation for Metal Forming Process

作　　者：程伟[1] 骆少明[1] 成思源[1] 吕文阁[1] 赵斌[1] 

机构地区：[1]广东工业大学机电工程学院,广东广州510006

出　　处：《机床与液压》2008年第7期20-22,51,共4页Machine Tool & Hydraulics

基　　金：广东省自然科学基金资助项目(05001844)

摘　　要：介绍了一种新的模拟金属成形过程的数值分析方法——无网格再生核质点法(Reproducing Kernel Particle Method,RKPM)的研究进展及基本原理。对于金属塑性大变形问题,探讨了刚塑性无网格RKPM模拟分析的关键技术处理。忽略弹性变形,把刚塑性材料的力学模型和无网格RKPM相结合来模拟分析金属塑性大变形问题,可以得到很好的计算效果。并给出了刚塑性材料数值模拟实例,证明了该方法的有效性。A new numerial method for simulating metal forming process, meshless RKPM and its fundamental principle and research progress were introduced. The key technology during simulating the metal forming process with RKPM was discussed. Using meshless RKPM based on rigid-plasticity with the elasto-plasticity neglected, a better result was got. A numerical example was presented. The numerical example shows that the theory is correct and the calculating method is effective.

关 键 词：无网格法 RKPM 刚塑性 弹塑性 金属成形 数值模拟 

分 类 号：O241[理学—计算数学]