Transactions of Materials and Heat Treatment

Title：Application and analysis of metal fracture behavior based on FEM calculation

Authors： HU Jian-jun1 XU Hong-bin1 JIN Yan2 CHEN Yuan-fang1(1.Department of Material Science and Engineering Chongqing Institute of Technology Chongqing 400050 China 2.Department of Computer Science and Engineering Chongqing Institute of Technology Chongqing 4000

Unit：

KeyWords： fracture behavior finite element method fracture criterion

ClassificationCode：TG111.91;TB115

year,vol(issue):pagenumber：2007,32(3):100-103

Abstract：

In order to obtain the conformity between FEM analysis and the real condition of the metal fracture behavior,the general judgement method of metal fracture FEM analysis was discussed.The key technology of FEM used for metal fracture behavior was introduced in detail.The general ductility fracture criterion was discussed and a fracture criterion method was put forward.The adjustment and re-meshing of finite element grid for metal fracture behavior and the successful application of FEM technology to metal fracture behavior during extrusion,cutting and stamping were introduced.The key factor of FEM used for metal fracture behavior was acquired.

Funds：

重庆科委自然科学基金资助项目(CSTC2006BB3407,CSTC2005BB3080)

Reference：

[1]方刚,雷丽萍,曾攀.金属塑性成形过程延性断裂的准则及其数值模拟[J].机械工程学报,2002,12(38):21-25.
[2]崔永杰.有限元分析技术中的断裂判断[J].金属成形工艺,2002,(5):21-26.
[3]Rice J R,Tracey D M.On the ductile enlargement of voids ontriaxial stress[J].Journal of Mechanics and Physics of Sol-ids,1969,(17):201-206.
[4]Cockroft M G.Latham D J.A simple criterion for fracturefor ductile-fracture of metals[R].National Engineering La-boratory,Report No.240,1966.
[5]Atkins A G.Possible explanation for unexpected departuresin hydrostatic tension fracture strain relations[J].Metal Sci-ence,1981,2(15):81-83.
[6]Ridha Hamblia,Marian Reszka.Fracture criteria identicationusing an inverse technique method and blanking experiment[J].International Journal of Mechanical Sciences,2002,44(7):1349-1361.
[7]方刚,曾攀.金属板料冲裁过程的有限元模拟[J].金属学报,2001,6(37):654-657.

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