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

한국표면공학회 (The Korean Institute of Surface Engineering)
권호 표지

알루미늄합금판재 성형한계 예측을 위한 파단모델 적용

Application of Failure Criteria in Aluminum sheet Forming Analysis

  • 이은국 (강원대학교 기계의용공학과) ;
  • 김헌영 (강원대학교 기계의용공학과) ;
  • 김형종 (강원대학교 기계의용공학과) ;
  • 김흥규 (한국생산기술연구원)
  • 발행 : 2011.05.19
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초록

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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