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

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Falsafi, Javad^1 ; Demirci, Emrah^1 ; Silberschmidt, Vadim.V.^1

Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough

LE11 3TU, United Kingdom^1

关键词: Cold recycling;    Computational schemes;    Effective plastic strain;    Formability analysis;    Formability index;    Metal products;    Re-manufacturing;    Theoretical foundations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032030/pdf
DOI  :  10.1088/1742-6596/734/3/032030

来源: IOP

【 摘 要 】

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.