文章摘要
不同材料外推模型的精冲有限元模拟对比
The Comparison of Different Extrapolation Models for Materials in Fine-blanking Simulation
Received:December 10, 2010  Revised:September 10, 2011
DOI：
中文关键词: 材料模型  流动应力  精密冲裁  DEFORM  有限元模拟
英文关键词: material model  flow stress  fine-blanking  DEFORM  FEM numerical simulation
基金项目:
Author NameAffiliation
WANG Shao-yang School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China 
CHEN Wen-lin School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China 
LI Zhi-jie School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China 
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中文摘要:
      将35钢的应力应变曲线用VOSS模型、Ludwik模型外推并插入到DEFROM 2D中，对精冲过程进行有限元模拟，对比了VOSS模型、Ludwik模型及DEFORM自带材料模型的计算结果，表明DEFORM自带材料模型与VOSS模型计算结果相近，DEFORM自带材料模型在大塑性应变下仍具有可靠性。
英文摘要:
      The author extrapolated the curves of steel 35 with VOSS, Ludwik models ,and inserted them into DEFROM 2D in the fine-blanking process on the finite element simulation. Comparing VOSS model, Ludwik model and material model of DEFORM own calculations the results showed that the VOSS material model and DEFORM own model were similar, DEFORM own material model in the large plastic strain was still reliable.
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