Treffer: Study on the influence of work-hardening modeling in springback prediction

Title:
Study on the influence of work-hardening modeling in springback prediction
Authors:
OLIVEIRA, M. C, ALVES, J. L, CHAPARRO, B. M, MENEZES, L. F
Source:
Advances in metal forming: experiments, constitutive models & simulationsInternational journal of plasticity. 23(3):516-543
Publisher Information:
Oxford: Elsevier Science, 2007.
Publication Year:
2007
Physical Description:
print, 3 p.1/4
Original Material:
INIST-CNRS
Subject Terms:
Mechanics acoustics, Mécanique et acoustique, Metallurgy, welding, Métallurgie, soudage, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des solides, Solid mechanics, Mécanique des structures et des milieux continus, Structural and continuum mechanics, Elasticité statique (thermoélasticité...), Static elasticity (thermoelasticity...), Inélasticité (thermoplasticité, viscoplasticité...), Inelasticity (thermoplasticity, viscoplasticity...), Sciences appliquees, Applied sciences, Metaux. Metallurgie, Metals. Metallurgy, Transformation de matériaux métalliques, Production techniques, Formage, Forming, Autres procédés de formage, Other forming methods, Acier, Steel, Acero, Analyse structurale, Structural analysis, Análisis estructural, Durcissement cinématique, Kinematic hardening, Endurecimiento cinemático, Durcissement déformation, Strain hardening, Endurecimiento deformación, Verfestigung, Durcissement isotrope, Isotropic hardening, Endurecimiento isotropico, Ecrouissage, Work hardening, Endurecimiento en frío, Effet Bauschinger, Bauschinger effect, Efecto Bauschinger, Bauschinger Effekt, Effet non linéaire, Non linear effect, Efecto no lineal, Effet ressort, Springback, Efecto resorte, Equation constitutive, Constitutive equation, Ecuación constitutiva, Essai cisaillement, Shear test, Ensayo cortante, Scherpruefung, Essai traction, Tension test, Ensayo tracción, Zugversuch, Etude expérimentale, Experimental study, Estudio experimental, Experimentelle Untersuchung, Forme en U, U shape, Forma de una U, Gradient déformation, Strain gradient, Gradiente deformación, Grande déformation, High strain, Gran deformación, Identification système, System identification, Identificación sistema, Industrie automobile, Automobile industry, Industria automóvil, Autoindustrie, Inélasticité, Inelasticity, Inelasticidad, Loi puissance, Power law, Ley poder, Microstructure, Microestructura, Mikrogefuege, Modèle Chaboche, Chaboche model, Modelo Chaboche, Modélisation, Modeling, Modelización, Métal, Metal, Metalle, Méthode élément fini, Finite element method, Método elemento finito, Finite Element Methode, Plasticité, Plasticity, Plasticidad, Plastizitaet, Structure double phase, Dual phase structure, Estructura doble fase, Dualphasengefuege, Traction uniaxiale, Uniaxial tension stress, Tracción uniaxial, Tôle mince, Thin sheet, Chapa fina, Feinblech, B. Constitutive behavior, B. Elastoplastic material, B. Residual stress, C. Finite elements
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
CEMUC, Department of Mechanical Engineering, University of Coimbra, Polo II, Rua Luis Reis Santos, Pinhal de Marrocos, 3030-788 Coimbra, Portugal
Department of Mechanical Engineering, University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal
Polytechnic Institute of Tomar, Rua 17 de Agosto de 1808, 2200-273 Abrantes, Portugal
ISSN:
0749-6419
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=18423875
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Metals. Metallurgy

Physics: solid mechanics
Accession Number:
edscal.18423875
Database:
PASCAL Archive

Weitere Informationen

The main goal of this study is to evaluate the influence of work-hardening modeling in springback prediction in the first phase of the Numisheet'05 Benchmark 3: the U-shape Channel Draw. Several work-hardening constitutive models are used in order to allow the different materials' mechanical behavior to be better described: the Swift law (a power law) or a Voce type saturation law to describe the classical isotropic work-hardening; a Lemaître and Chaboche type law to model the non-linear kinematic hardening, which can be combined with the previous two; and Teodosiu's microstructural work-hardening model. This analysis was carried out using two steels currently used in the automotive industry: mild (DC06) and dual phase (DP600). Haddadi et al. [Haddadi, H., Bouvier, S., Banu, M., Maier, C., Teodosiu, C., 2006. Towards an accurate description of the anisotropic behaviour of sheet metals under large plastic deformations: Modelling, numerical analysis and identification. Int. J. Plasticity 22 (12), 2226-2271] performed the mechanical characterization of these steels, as well as the identification of the constitutive parameters of each work-hardening model, based on an appropriate set of experimental data such as uniaxial tensile tests, monotonic and Bauschinger simple shear tests and orthogonal strain-path change tests, all at various orientations with respect to the rolling direction of the sheet. All the simulations were carried out with the inhouse FE code DD3IMP. The selected sheet metal formed component induces high levels of equivalent plastic strain. However, for the several work-hardening models tested, the differences in spring-back prediction are not significantly higher than those previously reported for components with lower equivalent plastic strain levels. It is shown that these differences can be related to the predicted through-thickness stress gradients. The comparative significance of both equivalent plastic strain levels and strain-path changes in the through-thickness stress gradients is discussed.