PREDICTION OF YIELD BEHAVIOR AND FORMING LIMIT OF SHEET METAL BASED ON POLYCRYSTALLINE PLASTICITY THEORY

›› 2000, Vol. 36 ›› Issue (2): 73-75.

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PREDICTION OF YIELD BEHAVIOR AND FORMING LIMIT OF SHEET METAL BASED ON POLYCRYSTALLINE PLASTICITY THEORY

Lian Jianshe;Liu Shourong;Chen Jiwei

Jilin University of Technology

Published:2000-02-15

Abstract

Abstract: The isotropic yield behaviors of BCC and FCC metals under plane stress condition are simulated with the Taylor theory. The results are compared with a proposed yield function (Barlat-Lian yield function) in order to determine its parameter. Then the yield function with the correct parameter choice is incorporated with the M-K model to predict the forming limit of sheets, and to compare with a steel and an aluminum alloys, which gives good agreements with experiments.

Key words: Forming limit, Polycrystalline slip, Yield surface

CLC Number:

TG456

Lian Jianshe;Liu Shourong;Chen Jiwei. PREDICTION OF YIELD BEHAVIOR AND FORMING LIMIT OF SHEET METAL BASED ON POLYCRYSTALLINE PLASTICITY THEORY[J]. , 2000, 36(2): 73-75.

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PREDICTION OF YIELD BEHAVIOR AND FORMING LIMIT OF SHEET METAL BASED ON POLYCRYSTALLINE PLASTICITY THEORY

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