Experimental and numerical analysis of the cup drawing test for orthotropic metal sheets

Moreira, Luciano Pessanha; Ferron, G.; Ferran, G.

doi:10.1016/s0924-0136(00)00660-9

Cited by 31 publications

(18 citation statements)

References 22 publications

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“…This anisotropy prevalent in the pre-processed sheet segment influences subsequent deformation, such as deep-drawing. It dictates the shape of the yield surface and strongly affects the strain distributions obtained during sheet metal forming [9]. Finite element simulations of metal forming provide an effective means to investigate the relationship between processing deformation and structure of the material, and therefore, useful guidance in fine-tuning production processes.…”

Section: Introductionmentioning

confidence: 99%

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Padmanabhan

Baptista

Oliveira

et al. 2007

Journal of Materials Processing Technology

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Tailor-welded blanks made of dissimilar, uniform or non-uniform thickness materials have potential applications in automobile industries. Compared to the base metal, the formability of tailor-welded blank is less due to the presence of weld area and strength mismatch between component blanks. Most sheet metals used to produce tailor-welded blanks have anisotropy induced during pre-processing stage due to large deformation. The orientation of the blank sheet rolling direction and the combination of the blank sheet materials has significant influence on the deformation behaviour. The effect of anisotropy in the tailor-welded blank and the orientation of blank sheets rolling direction during deep-drawing process are investigated in this study. Finite element analysis of deep-drawing mild steel and dual-phase steel tailor-welded blank models was carried out using research purpose FE code DD3IMP; to form a basis for tailor-welded blank design and development for a part. Anisotropy in the blank sheets has moderate influence and its contribution to increased material flow depends on the mechanical properties of the blank sheets. Appropriate combination of the blank sheets rolling direction orientation can significantly improve the formability of the tailor-welded blank in the deep-drawing of square cup.

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Section: Introductionmentioning

confidence: 99%

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Padmanabhan

Baptista

Oliveira

et al. 2007

Journal of Materials Processing Technology

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“…Further recent papers discussing the modelling and simulation of ears in cup drawing include Moreira et al [34], Kishor & Kumar [35], Miehe and Schotte [36], Engler and Kalz [37], Engler and Hirsch [38], Tikhovskiy et al [39,40] and Rabahallah et al [41].…”

Section: Introductionmentioning

confidence: 99%

On the influence of kinematic hardening on plastic anisotropy in the context of finite strain plasticity

2011

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The paper discusses the application of a newly developed material model for finite anisotropic plasticity to the simulation of earing formation in cylindrical cup drawing. The model incorporates Hilltype plastic anisotropy, nonlinear kinematic and nonlinear isotropic hardening. The constitutive framework is derived in the context of continuum thermodynamics and represents a multiplicative formulation of anisotropic elastoplasticity in the finite strain regime. Plastic anisotropy is described by means of secondorder structure tensors which are used as additional tensor-valued arguments in the representation of the yield criterion and the plastic flow rule. The evolution equations are integrated by a form of the exponential map that fullfils plastic incompressibility and preserves the symmetry of the internal variables. The numerical examples investigate the influence of the hardening behaviour on an initially anisotropic yield criterion. In particular, the influence of using the kinematic hardening component of the model in addition to isotropic hardening in the earing simulations is examined. Comparisons with test data for aluminium and steel sheets display a good agreement between the finite element results and the experimental data.

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“…The finite element formulation and implementation of Barlat's yield functions together with prediction of earings is discussed in a number of works of Yoon and coworkers ( [25], [26], [27], [28], [29] [30]). Further recent papers discussing the modelling and simulation of earings in cup drawing include [31], [32], [33], [34], [35], [36] and [37].…”

Section: Introductionmentioning

confidence: 99%

Earings prediction by a finite strain multiplicative formulation for anisotropic elastoplastic materials

2010

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This paper focuses on the simulation of earings in deep drawing of cups by means of a recently developed anisotropic constitutive model. The model is derived in a thermodynamicallyconsistent framework and includes nonlinear kinematic and isotropic hardening. It represents a multiplicative formulation of anisotropic finite elastoplasticity in the finite strain regime. The description of anisotropy is characterized by the use of the so-called structure tensors as additional tensor-valued arguments in the representation of the yield function and the plastic flow rule. The evolution equations are integrated by a form of the exponential map that retains the plastic volume and uses the spectral decomposition to evaluate the exponential tensor functions in closed form. Finally, finite element simulations of cylindrical cup drawing processes are performed and the predicted earings are compared to results from experiments.

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Experimental and numerical analysis of the cup drawing test for orthotropic metal sheets

Cited by 31 publications

References 22 publications

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

On the influence of kinematic hardening on plastic anisotropy in the context of finite strain plasticity

Earings prediction by a finite strain multiplicative formulation for anisotropic elastoplastic materials

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