Numerical assessment of residual formability in sheet metal products : towards design for sustainability

Falsafi, Javad and Demirci, Eemrah and Silberschmidt, Vadim V. (2016) Numerical assessment of residual formability in sheet metal products : towards design for sustainability. Journal of Physics: Conference Series, 734. ISSN 1742-6588 (https://doi.org/10.1088/1742-6596/734/3/032030)

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Abstract

A new computational scheme is presented to addresses cold recyclability of sheet- metal products. Cold recycling or re-manufacturing is an emerging area studied mostly empirically; in its current form, it lacks theoretical foundation especially in the area of sheet metals. In this study, a re-formability index was introduced based on post-manufacture residual formability in sheet metal products. This index accounts for possible levels of deformation along different strain paths based on Polar Effective Plastic Strain (PEPS) technique. PEPS is strain-path independent, hence provides a foundation for residual formability analysis. A user- friendly code was developed to implement this assessment in conjunction with advanced finite- element (FE) analysis. The significance of this approach is the advancement towards recycling of sheet metal products without melting them.

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