Constitutive Modelling of Anisotropy, Hardening and Failure of Sheet Metals

Abstract:

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The paper discusses the application of a newly developed coupled material model of finite anisotropic multiplicative plasticity and continuum damage to the numerical prediction of the forming limit diagram at fracture (FLDF). The model incorporates Hill-type plastic anisotropy, nonlinear Armstrong-Frederick kinematic hardening and nonlinear isotropic hardening. The numerical examples investigate the simulation of forming limit diagrams at fracture by means of the so-called Nakajima stretching test. Comparisons with test data for aluminium sheets display a good agreement between the finite element results and the experimental data.

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Periodical:

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Edited by:

J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens

Pages:

631-636

DOI:

10.4028/www.scientific.net/KEM.473.631

Citation:

I. N. Vladimirov et al., "Constitutive Modelling of Anisotropy, Hardening and Failure of Sheet Metals", Key Engineering Materials, Vol. 473, pp. 631-636, 2011

Online since:

March 2011

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$35.00

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