Plane-Stress Analysis of the New Stress Tensor Decomposition

Mohd Khir Mohd Nor; Rade Vignjevic; James Campbell

doi:10.4028/www.scientific.net/AMM.315.635

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 315Plane-Stress Analysis of the New Stress Tensor...

Plane-Stress Analysis of the New Stress Tensor Decomposition

Abstract:

The accuracy and reliability of the new stress tensor decomposition to capture the plasticity behaviour of orthotropic materials under plane-stress conditions was examined in this paper. No experiment was required to perform this work. Therefore, the suitable, published paper which provides a relevant test result and sufficient material properties to characterise the new stress tensor decomposition, was used. This new stress tensor decomposition was used to presents a new yield criterion for orthotropic sheet metals under plane-stress conditions in this work. This was done by assuming the yield surface to be circular in the new deviatoric plane. The predictions of the new effectice stress expression were then compared with the experimental data of 6000 series aluminium alloy sheet (A6XXX-T4) and Al-killed cold-rolled steel sheet SPCE. The predicted new yield surfaces are in good agreement with respect to the experimental data for two materials (A6XXX-T4 and SPCE).

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Periodical:

Applied Mechanics and Materials (Volume 315)

Pages:

635-639

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.315.635

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Online since:

April 2013

Authors:

Mohd Khir Mohd Nor, Rade Vignjevic, James Campbell

Keywords:

Effective Stress, Generalised Pressure, Orthotropic Materials, Plane-Stress Analysis, Von Mises, Yield Criterion

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References

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