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HomeKey Engineering MaterialsKey Engineering Materials Vols. 340-341Plastic Deformation Behavior of High Strength...

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

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Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 340-341)

Pages:

895-900

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.340-341.895

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Online since:

June 2007

Authors:

Takeshi Uemori, T. Kuramitsu, Ryutaro Hino, Tetsuo Naka, Fusahito Yoshida

Keywords:

Constitutive Model, High Tensile Strength Steel Sheet, Kinematic Hardening Model, Non-Proportional Loading, Yield Function

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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