Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Strain Path Dependence of Forming Limits Predicted by Barlat and Lians Non-Quadratic Anisotropic Yield riterion for Sheet Materials

  • Kim, Young-suk (School of Mechanical Engineering, Kyungpook National University) ;
  • Son, Hyun-sung (Graduate School, School of Mechanical Engineering, Kyungpook National University)
  • Published : 2001.02.01
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Abstract

This paper presents an analytical study that can predict the path-dependent forming limit of anisotropic sheet materials that experience various combinations of strain paths. To predict the forming limit diagrams(FLD), the proposed analytical procedure is performed within the framework of the Marciniak and Kuczynski(M-K) approach by using the Barlat and Lians non-quadratic anisotropic yield criterion and introducing the effect of the existence of a strain gradient over a stretching punch. The predicted path-dependent forming limit of an anisotropic sheet has been compared with the published experimental results. It has been found that the predicted path-dependent forming limits are in good agreement with the experimental data.

Keywords

References

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