Formability prediction of thin metal sheets using various localization criteria
Article dans une revue avec comité de lecture
Auteur
ALTMEYER, Guillaume 
ABED-MERAIM, Farid BALAN, TudorRésumé
The aim of this paper is to give an overview of the theoretical basis of the most significant and commonly used localization criteria reformulated into a unified framework, and to apply these criteria to different materials in order to determine their formability domains. After giving a general material description based on a phenomenological approach, theoretical foundations of localization criteria are presented together with their advantages and drawbacks. These criteria rely on diverse theories: maximum load principle, bifurcation analysis, Marciniak-Kuczynski analysis, and stability analysis by a linear perturbation method. They are then applied to a brass and a Dual Phase steel and the predicted Forming Limit Diagrams (FLD) are discussed.
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Communication avec acte;ABED-MERAIM, Farid ; BALAN, Tudor (2013)
Many criteria have been developed during last decades to predict diffuse or localized necking and shear banding. The lack of confrontation of these models with each other on relevant applications makes their choice difficult ...
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Communication sans acte;ABED-MERAIM, Farid ; BALAN, Tudor (2010)
The originality of the approach used here is to present stability conditions of metallic materials modeled by general phenomenological laws and to apply them to the study of the formability of thin metallic sheets. The ...
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Communication avec acte;ABED-MERAIM, Farid ; BALAN, Tudor (2008)
Lors des opérations de mise en forme de structures minces, des phénomènes d’instabilité peuvent se produire. En emboutissage, ces instabilités peuvent se manifester sous différentes formes comme par exemple la striction ...
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Communication avec acte;ABED-MERAIM, Farid ; BALAN, Tudor (Association Française de Mécanique, 2009)
Différentes approches de modélisations ont été proposées pour prédire les phénomènes de localisation lors d’opérations de mise en forme de tôles métalliques par emboutissage. Des exemples de ces approches sont le principe ...
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Article dans une revue avec comité de lecture;ABED-MERAIM, Farid ; BALAN, Tudor (Springer Verlag, 2014)
The prediction of forming limit diagrams (FLDs) is of significant interest to the sheet metal forming industry. Although a large variety of plastic instability criteria have been developed during the previous decades, there ...