Analysis of anisotropic model and the effect of friction coefficient in a stretch forming process applied to AA2024 thin sheet

A. Tudor 1 A. Gavrus 2 S. Cananau 1 E. Pirva 1
1 UPB - University Politehnica of Bucharest [Romania]
2 LGCGM - Laboratoire de Génie Civil et Génie Mécanique
Abstract : The deep drawing numerical simulation problem represents today an important interest for a sheet forming engineering design. This paper presents the results of Finite Elements Simulation of a stretch forming test based on the anisotropic mechanical behavior describing an AA2024 aluminum alloy. The numerical simulations applied to thin sheets are made using a Hill'48 anisotropic elasto-plastic model. The corresponding material coefficients are measured at 0°, 45° and 90° relative to the rolling direction to take into account the metallic sheet anisotropy. The samples cutting directions relative to the rolling one correspond to the above mentioned angles. Furthermore this study analyzes the effects of the Coulomb friction coefficient on the maximal principal stresses variation and on the obtained punch loads-displacement curves.
Keywords : Stretch forming Friction coefficient Aluminum alloy Anisotropic behaviour Finite elements models
Type de document :
Article dans une revue
Scientific Bulletin - "Politehnica" University of Bucharest. Series D, Mechanical engineering, Politechnica University of Bucharest, 2017, 79 (1), pp.185-196
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01619379
Contributeur : Laurent Jonchère <>
Soumis le : jeudi 19 octobre 2017 - 13:07:10
Dernière modification le : jeudi 7 février 2019 - 17:06:32

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  • HAL Id : hal-01619379, version 1

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UNIV-RENNES1 | LGCGM | UNIV-RENNES | LGCGM-INSA | INSA-RENNES | INSA-GROUPE

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A. Tudor, A. Gavrus, S. Cananau, E. Pirva. Analysis of anisotropic model and the effect of friction coefficient in a stretch forming process applied to AA2024 thin sheet. Scientific Bulletin - "Politehnica" University of Bucharest. Series D, Mechanical engineering, Politechnica University of Bucharest, 2017, 79 (1), pp.185-196. 〈hal-01619379〉

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