Three-dimensional numerical simulation of the deep-drawing process using solid finite elements

Menezes, L.F.; Teodosiu, Cristian

doi:10.1016/s0924-0136(99)00345-3

Cited by 247 publications

(193 citation statements)

References 8 publications

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“…The Coulomb classical law models the frictional contact problem between a deformable body (the blank) and a rigid body (the tool), which is treated with an augmented Lagrangian approach [19]. A fully implicit algorithm of Newton-Raphson type is used to solve the non-linearities related with the frictional contact problem and the elastoplastic behaviour of the deformable body [20]. The blank is discretized with 3D solid finite elements [21].…”

Section: Numerical Implementation In Dd3imp Finite Element Codementioning

confidence: 99%

Modelling of anisotropic work-hardening behaviour of metallic materials subjected to strain-path changes

Bouvier

Alves

Oliveira

et al. 2005

Computational Materials Science

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The present paper aims at reviewing some recent progress in developing advanced constitutive models which are devoted to the description of the anisotropic work-hardening behaviour under strain-path changes at large strains of metallic materials. After reviewing some microscopic and macroscopic experimental evidence, a physically-based phenomenological model using four internal state tensor variables is presented. This model can be simplified into several classical phenomenological models in order to take into account either the isotropic or the kinematic hardening or both. The implementation of the proposed models in the in-house finite element code DD3IMP is briefly recalled. Numerical simulations of the stamping of a curved rail are carried out in order to evaluate the accuracy and the efficiency of the proposed models in modelling the springback.

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Section: Numerical Implementation In Dd3imp Finite Element Codementioning

confidence: 99%

Modelling of anisotropic work-hardening behaviour of metallic materials subjected to strain-path changes

Bouvier

Alves

Oliveira

et al. 2005

Computational Materials Science

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“…The in-house static implicit finite element code DD3IMP [16], which has been specifically developed to simulate sheet metal forming processes, is adopted in the present study to carry out the numerical simulations. The mechanical model takes into account large elastoplastic strains and rotations, while the evolution of the deformation process is described by an updated Lagrangian formulation.…”

Section: Dd3imp -Static Implicit Fe Codementioning

confidence: 99%

“…The frictional contact problem is regularized through the augmented Lagrangian method [23], leading to a mixed system of equations involving both displacements and contact forces as unknowns [24]. The Newton-Raphson scheme is used to solve, in a single iterative loop, the non-linearities associated with both the contact and the elastoplastic behaviour of the deformable body [16].…”

Section: Frictional Contact Conditionsmentioning

confidence: 99%

Prediction of wrinkling and springback in sheet metal forming

et al. 2016

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Abstract. The finite element simulation is currently a powerful tool to optimize forming processes in order to produce defect-free products. Wrinkling and springback are main geometrical defects arising in sheet metal forming. Nevertheless, the prediction of such defects requires accurate numerical models. This study presents the experimental and numerical analysis of a rail with high tendency to develop both wrinkling (top surface of geometry) and springback (flange). The punch force evolution and the final geometry of the rail, evaluated in four different cross-sections, are the main variables analysed. Globally, the numerical results are in good agreement with the experimental measurements. However, the shape of the wrinkle is significantly influenced by the symmetry conditions considered in the model (1/4 of the blank). In fact, considering the full model of the blank, the numerical results are in better agreement with the experimental ones. On the other hand, the computational cost of the numerical simulation considering the full blank is approximately 12 times higher than using 1/4 of the blank.

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“…This strategy was implemented in the in-house quasi-static finite element code DD3IMP [15,16], which was specially developed to simulate the sheet metal forming process. The main characteristics of this finite element code are the adoption of a hypoelastic law for the material behaviour description, while the evolution of the deformation process is described by an update Lagrangian formulation.…”

Section: Introductionmentioning

confidence: 99%

Automatic correction of the time step in implicit simulations of thermomechanical problems

et al. 2016

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Abstract. The accurate numerical modelling of thermomechanical systems is important in several industrial applications. A new staggered coupling strategy is proposed to deal with thermo-elasto-plastic problems involving large deformations and rotations, which is combined with an automatic time-step control technique. The proposed strategy is based on the isothermal split approach. It differs from the classical scheme since, in each increment, there are two phases of interchange of information, instead of only one. In each increment, the solution procedure is divided in a prediction phase and a corrector phase, and the interchange of information is performed on both. The proposed strategy was implemented in the in-house quasi-static finite element code DD3IMP. Its performance is analysed and compared with the classical strategy and the iterative one, which are commonly employed for solving thermomechanical problems. The results indicate that the propose strategy contributes for improving the accuracy of the numerical solution, with a reasonable computational cost.

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Three-dimensional numerical simulation of the deep-drawing process using solid finite elements

Cited by 247 publications

References 8 publications

Modelling of anisotropic work-hardening behaviour of metallic materials subjected to strain-path changes

Modelling of anisotropic work-hardening behaviour of metallic materials subjected to strain-path changes

Prediction of wrinkling and springback in sheet metal forming

Automatic correction of the time step in implicit simulations of thermomechanical problems

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