Identification strategy of anisotropic behavior laws: application to thin sheets of Aluminium A5

• Autorzy: Znaidi A. , Daghfas O. , Gahbiche A. , Nasri R.

Identyfikatory

DOI

10.15632/jtam-pl.54.4.1147

• Języki publikacji: EN

Abstrakty

EN

Numerical simulation provides a valuable assistance in the controlling of forming processes. The elasto-plastic orthotropic constitutive law is based on the choice of an equivalent stress, a hardening law and a plastic potential. An identification of the model parameters from an experimental database is developed. This database consists in hardening curves and Lankford coefficients of specimens subjected to off-axis tensile tests. The proposed identification strategy is applied to aluminum sheets. The behavior of this material is studied under several solicitations. The anisotropic behavior of the aluminum plate is modeled using the Barlat criterionand the hardening law. The obtained Lankford coefficients are compared to those which are identified by a different strategy.

Słowa kluczowe

EN

anisotropy; strategy; identification; behavior law; off-axis testing

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2016
• Tom: Vol. 54 nr 4
• Strony: 1147--1156
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Znaidi A.

• National School of Engineers of Tunis, Departement of Mechanical Engineering, Tunis, Tunisie

autor

Daghfas O.

• National School of Engineers of Tunis, Departement of Mechanical Engineering, Tunis, Tunisie

autor

Gahbiche A.

• National School of Engineers of Monastir, Mechanical Engineering Laboratory, Monastir, Tunisie

autor

Nasri R.

• National School of Engineers of Tunis, Departement of Mechanical Engineering, Tunis, Tunisie

Bibliografia

• 1. Baganna M., Znaidi A., Kharroubi H., Nasri R., 2010, Identification of Anisotropic Plastic Behavior Laws for Aluminum 2024 after Heat Treatment Materials from Off-Axis Testing, Toulouse
• 2. Barlat F., Brem D.L.J., 19991, A six components yield function for anisotropic materials, International Joural of Plasticity, 7, 693-712
• 3. Barlat F., Lian J., 1989, Plastic behavior and stretchability of sheet metals. Part I: A yield function for orthotropic sheet under plane stress conditions, International Joural of Plasticity, 5, 51-56
• 4. Boubakar L., Boisse P., 1998, Anisotropic elastoplastic behavior for numerical analysis of thin shells in great transformations, Europ´eene Review Mechanics, 7, 6
• 5. Cazacu O., Ionescu I.R., Yoon J.W., 2009, Orthotropic strain rate potential for the description of anisotropy in tension and compression of metals, International Joural of Plasticity
• 6. Cazacu O., Plunkett B., Barlat F., 2008, Orthotropic yield criterion description of anisotropy in tension and compression of sheet metals, International Joural of Plasticity, 24, 847-866
• 7. Dogui A., 1989, Anisotropic plasticity in large deformation, Doctoral thesis of sciences, University Claude Bernard-Lyon
• 8. Ghouati O., Gelin J.C., 2001, A finite element based identification method for complex metallic material behavior, Computational Materials Science, 2157-2168
• 9. Gronostajsk Z.. 2000, The constitutive equations for FEM analysis, Journal of Material Processing Technology, 106, 40-44
• 10. 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, International Joural of Plasticity, 22, 2226-2271
• 11. Hill R., 1948, A theory of the yielding and plastic flow of anisotropic metals, Proceedings of Royal Society of London, A93, 281-297
• 12. Kim D., Barlat F., Bouvier S., Rabahallah M., Balan T., Chung K., 2007, Non-quadratic anisotropic potential based on linear transformation of plastic strain rate, International Joural of Plasticity, 23, 1380-1399
• 13. Lankford W.I., Snyder S.C., Bausher J.A., 1950, New criteria for predicting the press performance of deep- drawing sheets, Transactions of American Society for Metals, 42, 1196-1232
• 14. Manget B., Perre P., 1999, A large displacement formulation for anisotropic constitutive laws, European journal of Mecanique, 18, 5
• 15. Plunkett B., Cazacu O., Barlat F., 2006, Orthotropic yield criterion for hexagonal closed packed metals, International Joural of Plasticity, 22, 1171-1194
• 16. Znaidi A., 2004, Plasticity orthotrope in large deformation». PhD thesis at the Faculty of Sciences of Tunis
• 17. Znaidi A., Soula M., Guellouz S., Nasri R., 2009, Constitutive Equations Identification Strategies Elastoplastic Anisotropics Heet Material Using Associated and Unassociated Laws of Plasticity, Marseille

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniajacą naukę.