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논문 기본 정보

자료유형
학술대회자료
저자정보
Xiao-Xing Li (Beihang University) Jing Hu (Beihang University) Kwansoo Chung (Seoul National University) Guo-Feng Zhou (Beihang University) Rao Yao (Beihang University)
저널정보
한국소성·가공학회 기타자료 The 8th International Conference and Workshop on numerical simulation of 3D seet metal forming processes (NUMISHEET 2011)
발행연도
2011.8
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1,092 - 1,099 (8page)

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We present the study of a finite element method for die contour to compensate spring-back in sheet metal forming process, which is based on the genetic algorithm and isotropic-kinematic hardening laws. The Chaboche type combined isotropic-kinematic hardening law was formulated and used to account for the Bauschinger and transient behavior in the finite element analysis. Using a S shape stretch bending process as an example, it was demonstrated that the new method optimizes the die profile effectively. The good performance of the die profile optimized utilizing the new method was also experimentally verified , confirming that the new method might be more effective in cost reduction than common design practices in practical applications.

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Abstract
INTRODUCTIION
FLOW FORMULATION OF THE CHABOCHE MODEL AND NUMERICAL IMPLEMENTATION PROCEDURES
OPTIMIZATION METHOD BY GENETIC ALGORITHM
APPLICATION TO THE STRETCH FORMING PROCESS
SUMMARY
REFERENCES

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