Plastic Deformation Behavior of High Strength Steel Sheet under Non-Proportional Loading and its Modeling

Abstract:

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This paper deals with experimental observations and modeling of plastic deformations of a high strength steel sheet (HSS sheet) under biaxial stress conditions. Using a cruciform specimen of a HSS sheet of 980MPa-TS, experiments of proportional and non-proportional loadings were performed. Numerical simulations for the biaxial stress-strain responses were conducted using a constitutive model of large-strain cyclic plasticity (Yoshida-Uemori model), and the results were compared to the experimental data. The results of numerical simulation show a good agreement with the experimental results, which is attributed to accurate modeling of the backstress evolution of the anisotropic yield surface.

Info:

Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

895-900

DOI:

10.4028/www.scientific.net/KEM.340-341.895

Citation:

T. Uemori et al., "Plastic Deformation Behavior of High Strength Steel Sheet under Non-Proportional Loading and its Modeling", Key Engineering Materials, Vols. 340-341, pp. 895-900, 2007

Online since:

June 2007

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Price:

$35.00

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