Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)

The Korean Institute of Surface Engineering (한국표면공학회)
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Application of Failure Criteria in Aluminum sheet Forming Analysis

알루미늄합금판재 성형한계 예측을 위한 파단모델 적용

  • 이은국 (강원대학교 기계의용공학과) ;
  • 김헌영 (강원대학교 기계의용공학과) ;
  • 김형종 (강원대학교 기계의용공학과) ;
  • 김흥규 (한국생산기술연구원)
  • Published : 2011.05.19
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Abstract

The numerical simulation of the Forming Limit Diagram(FLD) test was carried out to calculate the limiting dome height(LDH: ISO12004-2) for aluminum alloy sheet Al6061-T6. The finite element analysis was used as an effective method for evaluating formability and diagnosing possible production problems in sheet stamping operations. To predict fracture during the stamping process, several failure models such as Cockcroft-Latham, Rice-Tracey, Brozzo and ESI-Wilkins-Kamoulakos(EWK) criteria were applied. The predicted results were discussed and compared with the experiments for Al6061-T6.

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