摘要
使用DEFORM-2D软件对AISI-1045钢的冲裁工艺过程进行弹塑性大变形有限元数值模拟,采用Ayada断裂准则,预测了材料变形过程中静水应力、等效应力和等效应变的分布以及发展趋势、冲裁最后阶段微裂纹产生发展和最终断裂,模拟结果中的材料断裂和冲裁力的变化与实验结果一致。
Numerical simulation of the blanking process for AISI-1045 steel which contains elastoplastic large deformation was conducted with the software DEFORM 2D. The Ayada damage criteria was used to simulate the blanking process .The distribution and developing trend of the hydrostatic stress , equivalent stress and equivalent strain in the course of deformation of the material , and the emergence , development and final fracture of the fine cracks in the finalfine blanking process was predicted. The results are in agreement with the published experimental results.
出处
《机械设计与制造》
北大核心
2007年第10期49-51,共3页
Machinery Design & Manufacture
基金
南昌市科技计划项资助目(洪科发计字[2006]125号)
国家自然科学基金项目资助(编号:50665002)
关键词
冲载
板料
损伤准则
有限元方法
Blanking
Sheet metal
Damage criteria
Finite element method
