Spring-back evaluation of automotive sheets based on isotropic-kinematic hardening laws and non-quadratic anisotropic yield functions

Chung, Kwansoo; Lee, Myoung‐Gyu; Kim, Dae-Yong; Kim, Chongmin; Wenner, Michael L.; Barlat, Frédéric

doi:10.1016/j.ijplas.2004.05.016

Cited by 37 publications

(54 citation statements)

References 29 publications

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“…the difference in yield stress in tension and compression, is a well known subsequent deformation. This phenomenon must be considered for a precise modeling when forming sheet metals and considering subsequent springback predictions (Chun et al, 2002a, b;Yoshida et al, 2002a, b;Chung et al, 2005;Lee et al, 2005a, b). Mollica et al (2001) developed a general three dimensional model, which can reproduce the stress-strain response at loading reversals and can be applied to more general changes in loading direction.…”

Section: Introductionmentioning

confidence: 99%

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

Mayama

Sasaki

2006

International Journal of Plasticity

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This paper investigates the effects of cyclic preloading on the subsequent viscoplastic deformation. A series of experiments such as the subsequent creep, subsequent stress relaxation, and cyclic loading with strain rate changes after cyclic preloading were conducted with Type 304 stainless steel at room temperature. The cyclic proportional and non-proportional loadings were conducted as cyclic preloadings.Tension-compression loading was chosen as the cyclic proportional loading, and circular and cruciform loading as the cyclic non-proportional loading. The experimental results showed that the subsequent deformation changes with the number of cycles of cyclic preloading. The differences in the subsequent deformation were examined by transmission electron microscopy (TEM). The observations suggest that changes in the dislocation structure depending on the number of cycles of cyclic preloading affect the subsequent viscoplastic deformation.

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Section: Introductionmentioning

confidence: 99%

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

Mayama

Sasaki

2006

International Journal of Plasticity

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“…Therefore these anisotropic properties should be considered in numerical modelling developed for a design of sheet forming tooling and process [1,2].…”

Section: Introductionmentioning

confidence: 99%

A numerical scheme of convex yield function with continuous anisotropic hardening based on non-associated flow rule in FE analysis of sheet metal

Liu¹,

Chen²

2018

J. Phys.: Conf. Ser.

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“…Later on, more comprehensive non-linear kinematic hardening models that combine both translation and expansion of the yield surface were developed and found to be suitable for the prediction of material behavior under cyclic loading conditions (Chaboche, 1986;Dafalias and Popov, 1975;Frederick and Armstrong, 2007;Ohno and Wang, 1993;Yoshida and Uemori, 2002). More recently, further improvements have been made to account for material anisotropy (Chung et al, 2005;Geng and Wagoner, 2002;Lee et al, 2007;Yoshida et al, 2015). A general review for the kinematic hardening rules can be found in (Chaboche, 2008).…”

Section: Introductionmentioning

confidence: 99%

Identification of nonlinear kinematic hardening constitutive model parameters using the virtual fields method for advanced high strength steels

Barlat

Kim

et al. 2016

International Journal of Solids and Structures

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In this work, the nonlinear kinematic hardening combined with Voce isotropic hardening was selected to characterize the material behavior of advanced high strength steel sheet samples subjected to a few reverse loading cycles. Multi-components of backstress were considered for the combined nonlinear kinematical hardening model, namely, one, two, and three backstress components. To calibrate the model, an inverse problem solution tool, so-called virtual fields method, which takes full advantage of full-field deformation measurement, was applied to identify the material constitutive parameters. First, finite element simulations of forward-reverse simple shear were performed to validate the proposed identification method. The influence of strain noise on the identification accuracy was also evaluated. Then, the proposed method was applied to three kinds of sheet metals (DP600, TRIP780 and TWIP980) tested under two cycles of forward-reverse simple shear for parameter identification. The identification results obtained with different number of backstress components were critically discussed.

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Spring-back evaluation of automotive sheets based on isotropic-kinematic hardening laws and non-quadratic anisotropic yield functions

Cited by 37 publications

References 29 publications

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

A numerical scheme of convex yield function with continuous anisotropic hardening based on non-associated flow rule in FE analysis of sheet metal

Identification of nonlinear kinematic hardening constitutive model parameters using the virtual fields method for advanced high strength steels

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