摘要
精冲成形是一个复杂的力学过程,涉及弹性变形、塑性变形、损伤软化和韧性断裂等现象。本文使用DEFORM2D软件对AISI-1035钢精冲工艺进行了弹塑性大变形有限元数值模拟,将McClintock断裂准则应用于精冲韧性断裂的预测中,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、精冲最后阶段微裂纹产生发展和最终断裂。
By using DEFORM 2D software and McClintock ductile fracture criteria,the process simulation for AISI-1035 steel has been done with elasto-plastic large deformation FEM.The distributions and developing trends of static hydraulic pressure, equivalent stress, equivalent strain have been predicted, and the fracture of sheet metal has been predicted well.
出处
《锻压装备与制造技术》
2005年第5期47-50,共4页
China Metalforming Equipment & Manufacturing Technology
关键词
机械制造
弹塑性有限元
韧性断裂
精冲
Machinery manufacture
Fine-blanking
Elasto-plastic FEM
Ductile fracture
作者简介
赵震（1972-）,男,副教授,从事精冲成形数值模拟、冲模智能设计技术研究
