Study on the Failure Criterion for Finite Element Analysis of Precise Shearing

정밀전단시의 유한요소 해석을 위한 파단기준 연구

  • 강대철 (강원대학교 대학원 기계메카트로닉스공학부)
  • Published : 2000.10.01

Abstract

The Tailor Welded Blanks(TWB) are using various materials (different thickness, strength and different materials) can be welded together prior to the forming process. Therefore, TWB applications have become little by little important in automobile industries, because it has more light weight and process reduction. A burnish area is very important for TWB using laser welding. In this paper, evaluated failure criterion, effect of clearance and distance of between pad and punch by computer simulation. We used element separation method for fracture. And applied a plastic strain to failure criterion. According to the analysis results, we obtain failure criterion, when plastic strain is 2.0. The burnish area and clearance were inverse proportional.

Keywords

References

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