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Forming limit diagrams by including the M–K model in finite element simulation considering the effect of bending

Habibi, M ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1177/1464420716642258
  3. Publisher: SAGE Publications Ltd , 2018
  4. Abstract:
  5. Forming limit diagram is often used as a criterion to predict necking initiation in sheet metal forming processes. In this study, the forming limit diagram was obtained through the inclusion of the Marciniak–Kaczynski model in the Nakazima out-of-plane test finite element model and also a flat model. The effect of bending on the forming limit diagram was investigated numerically and experimentally. Data required for this simulation were determined through a simple tension test in three directions. After comparing the results of the flat and Nakazima finite element models with the experimental results, the forming limit diagram computed by the Nakazima finite element model was more convenient with less than 10% at the lower level of the experimental forming limit diagram. © IMechE 2016
  6. Keywords:
  7. Effect of bending ; Forming limit diagram ; Marciniak–Kuczynski model ; Simulation ; Finite element method ; Metal forming ; Sheet metal ; Tensile testing ; Finite element simulations ; Forming limit diagrams ; K modeling ; Out-of plane ; Tension tests ; Bending (forming)
  8. Source: Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications ; Volume 232, Issue 8 , 2018 , Pages 625-636 ; 14644207 (ISSN)
  9. URL: https://journals.sagepub.com/doi/abs/10.1177/1464420716642258