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A simulation and experimental study on the deep drawing process of SPCC sheet using the graphical method

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TLDR
In this paper, a method for finite element (FE) simulation of a deep drawing process of a cold-rolled carbon steel (SPCC) sheet material based on the graphical method was presented.
Abstract
This study presents a method for finite element (FE) simulation of a deep drawing process of a cold-rolled carbon steel (SPCC) sheet material based on the graphical method. First, uniaxial tensile specimens were prepared and experimental tests were conducted to determine the flow stress curves. The calculation of the fracture points at special strain modes (plane strain, uniaxial tensile strain, and biaxial tensile strain) was presented using the modified maximum force criterion (MMFC). After that, the graphical method was adopted for the estimation of the forming limit curve (FLC) based on several hardening laws. FE models for a deep drawing process of the SPCC sheet were then built using the calculated FLCs. Using FE simulations, the fracture heights of cylinder cups formed by the deep drawing process were finally determined and compared with those from experiments. The results showed a good agreement between simulated and measured fracture height with a maximum of 3.6 % deviation. Additionally, simulations and corresponding experiments were performed to investigate the effects of the blank holder force, punch corner radius, and drawing ratio on the fracture height of cylinder cups.

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Journal ArticleDOI

An extended Modified Maximum Force Criterion for the prediction of localized necking under non-proportional loading

TL;DR: In this article, the Modified Maximum Force Criterion (MMFC) was extended to accommodate distortional hardening models and a novel approach was proposed for considering strain rate sensitivity, which substantially improved the predictive capabilities of the model under plane strain tension conditions.
Journal ArticleDOI

The effect of yield criteria on the forming limit curve prediction and the deep drawing process simulation

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Journal ArticleDOI

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Journal ArticleDOI

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Proceedings ArticleDOI

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