Journal ArticleDOI
Extension of quasi-plastic-elastic approach to incorporate complex plastic flow behavior - application to springback of advanced high-strength steels
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TLDR
In this article, a quasi-plastic-elastic strain (QPE) model is proposed to capture the complex plastic flow behavior of sheet metals such as the Bauschinger effect, transient behavior, workhardening stagnation and permanent softening.About:
This article is published in International Journal of Plasticity.The article was published on 2013-06-01. It has received 82 citations till now. The article focuses on the topics: Bauschinger effect & Plasticity.read more
Citations
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Enhancements of homogenous anisotropic hardening model and application to mild and dual-phase steels
Frédéric Barlat,Frédéric Barlat,Gabriela Vincze,José Grácio,Myoung-Gyu Lee,Edgar F. Rauch,Carlos N. Tomé +6 more
TL;DR: In this paper, the formulation of the so-called homogeneous anisotropic hardening (HAH) model, originally proposed in Barlat et al. (2011), is refined.
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Experimental investigation on a novel medium Mn steel combining transformation-induced plasticity and twinning-induced plasticity effects
TL;DR: In this paper, an additional deep cryogenic treatment process prior to intercritical annealing was employed to tailor the mechanical stability of austenite grains in a new medium Mn steel.
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An evolutionary anisotropic model for sheet metals based on non-associated flow rule approach
TL;DR: In this paper, a non-associated flow rule (non-AFR) based Yld2000-2d anisotropic yield model is employed in which separate yield function and plastic potential are considered.
Journal ArticleDOI
Experiment and modeling to investigate the effect of stress state, strain and temperature on martensitic phase transformation in TRIP-assisted steel
TL;DR: In this article, the effects of the stress state and temperature on the martensitic phase transformation behavior in a TRIP-assisted steel (TRIP780) were investigated using multi-axial experimental techniques.
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Springback simulation of advanced high strength steels considering nonlinear elastic unloading–reloading behavior
TL;DR: Sun and Wagoner as mentioned in this paper combined isotropic-nonlinear kinematic hardening and two-surface plasticity models to simultaneously describe the nonlinear unloading response and complex cyclic response of sheet metals in the plastic region.
References
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Journal ArticleDOI
A simplex method for function minimization
John A. Nelder,R. Mead +1 more
TL;DR: A method is described for the minimization of a function of n variables, which depends on the comparison of function values at the (n 41) vertices of a general simplex, followed by the replacement of the vertex with the highest value by another point.
Journal ArticleDOI
Time-independent constitutive theories for cyclic plasticity
TL;DR: In this paper, three different approaches are considered for the description of kinematic behavior: (i) the use of independent multi-yield surfaces, (ii) models with two surfaces only, (iii) the so-called "nonlinear-kinematic hardening rule" defined by a differential equation.
Journal ArticleDOI
Plane stress yield function for aluminum alloy sheets—part 1: theory
Frédéric Barlat,Frédéric Barlat,J.C. Brem,Jeong W. Yoon,Jeong W. Yoon,Kwansoo Chung,Re Dick,D.J. Lege,Farhang Pourboghrat,Shi-Hoon Choi,E. Chu +10 more
TL;DR: In this article, a plane stress yield function that well describes the anisotropic behavior of sheet metals, in particular, aluminum alloy sheets, was proposed, which was introduced in the formulation using two linear transformations on the Cauchy stress tensor.
Journal ArticleDOI
An analysis of a new class of integration algorithms for elastoplastic constitutive relations
Michael Ortiz,Juan C. Simo +1 more
TL;DR: In this article, an accuracy analysis of a new class of integration algorithms for finite deformation elastoplastic constitutive relations was carried out, where attention was confined to infinitesimal deformations.
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Complex unloading behavior: Nature of the deformation and its consistent constitutive representation
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