Springback of thick sheet AHSS subject to bending under tension
Article dans une revue avec comité de lecture
Auteur
RACZ, Sever-Gabriel 
CHALAL, Hocine BALAN, TudorRésumé
The springback behavior of four advanced high-strength sheet steels (Dual-Phase, TRIP, ferrite-bainite) with thicknesses ranging from 1.2 to 4 mm was investigated by means of the bending-under-tension (BUT) test. The applicability of several guidelines from the literature was investigated experimentally and numerically. The monotonic decrease of springback as back force increased was confirmed for this category of sheet steels, and a general trend for the non-linear influence of the tool radius was observed. The influence of numerical factors on the predicted values of springback was investigated, and conclusions and simple guidelines were drawn from the analysis with industrial sheet forming applications in mind.
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Communication avec acte; ;CHALAL, Hocine; ABED-MERAIM, Farid ; BALAN, Tudor (Francisco Chinesta , Yvan Chastel and Mohamed El Mansori, 2011)
Within the framework of sheet metal forming, the importance of hardening models for springback predictions has been often emphasized. While some specific applications require very accurate models, in many common situations ...
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Article dans une revue avec comité de lecture;CHALAL, Hocine; BALAN, Tudor (Trans Tech Publications, 2012)
In this paper, we investigate the springback behavior of several advanced high-strength sheet steels (TRIP, Dual-Phase, ferrite-bainite) with thicknesses up to 4 mm. Samples were tested by means of the bending-under-tension ...
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Article dans une revue avec comité de lecture;CHALAL, Hocine; ABED-MERAIM, Farid ; BALAN, Tudor (2011)
In this contribution, the formulation of the SHB8PS continuum shell finite element is extended to anisotropic elastic-plastic behavior models with combined isotropic-kinematic hardening at large deformations. The resulting ...
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Communication avec acte;CHALAL, Hocine; ABED-MERAIM, Farid ; BALAN, Tudor (Association Française de Mécanique, 2011)
Le phénomène de localisation des déformations plastiques, qui apparait lors d’opérations de mise en forme des tôles, représente l’une des principales causes de rebut des pièces produites dans l’industrie. Plusieurs critères ...
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Article dans une revue avec comité de lecture;CHALAL, Hocine; ABED-MERAIM, Farid ; BALAN, Tudor (Springer Verlag, 2012)
This paper proposes an extension of the SHB8PS solid–shell finite element to large strain anisotropic elasto-plasticity, with application to several non-linear benchmark tests including sheet metal forming simulations. ...