摘要
本文用DEFORM2D软件对Al-1100冲裁工艺进行了有限元数值模拟,利用Cockroft&Latham准则和Rice&Tracey断裂准则对冲裁过程微裂纹产生和最终断裂进行了模拟,分析比较了两种断裂准则下的开始断裂时的静水压力及载荷行程曲线,得到结果与实际基本一致。
Numerical simulation of blanking shaping process for Al-1100 has been conducted with the software DEFORM 2D.The process of the emergence and final fracture has been simulated by adopting criterion of Cockroft ＆ Latham and Rice ＆ Tracey with the analysis and comparison of the meaning stress at the first step of the fracture and the load-stroke curve under the two criterion, the result of which is coincided with the fact.
出处
《锻压装备与制造技术》
2007年第2期72-74,共3页
China Metalforming Equipment & Manufacturing Technology
关键词
机械制造
冲裁
数值模拟
断裂准则
Blanking
Numerical simulation
The criterion of fracture
