Experimental and theoretical analysis of the limits to ductility of type 304 stainless steel sheet |
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| Institution: | 1. Université Libanaise, Institut Universitaire de Technologie, BP 813, Saida, Lebanon;2. Laboratoire de Physique et Mécanique des Matériaux, UMR CNRS 7554, Université de Metz, Ile du Saulcy, 57045 Metz Cedex, France;3. Laboratoire d''Etude des Textures et Applications aux Matériaux, UMR CNRS 7078, Université de Metz, Ile du Saulcy, 57045 Metz Cedex, France;4. Faculty of Mechanics and Technology, University of Pitesti, Str. Targul din Vale, 11040 Pitesti, Romania;1. LTI, EA 3899 – IUT Amiens, Avenue des Facultés – Le Bailly, 80025 Amiens Cedex 1, France;2. LEM3, UMR CNRS 7239 – Arts et Métiers ParisTech, 4 rue Augustin Fresnel, 57078 Metz Cedex 3, France;3. DAMAS, Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures, Université de Lorraine, France;1. Materials Science and Technology, Los Alamos National Laboratory, Los Alamos, NM, USA;2. Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD, USA;3. Graduate Institute of Ferrous Technology, POSTECH, Republic of Korea;1. Mechanical Engineering Department, BITS-Pilani, Hyderabad Campus, AP 500078, India;2. Department of Mechanical Engineering, GRIET, Bachupally, Hyderabad 500090, AP, India |
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| Abstract: | The forming behaviour of type 304 stainless steel sheet has been investigated. The strain-hardening behaviour has been characterised in uniaxial tension tests, and the forming limits at necking and at fracture have been determined using the Marciniak punch test. The results, complemented by measurements of the fraction of martensite formed by plastic straining, have been compared with the predictions derived from the constitutive laws proposed by Iwamoto and Tsuta Iwamoto, T., Tsuta, T., 2000. Computational simulation of the dependence of the austenitic grain size on the deformation behaviour of trip steels. Int. J. Plasticity 16, 791–804; Iwamoto, T., Tsuta T., 2002. Computational simulation on deformation behaviour of CT specimens of trip steel under mode I loading for evaluation of fracture toughness. Int. J. Plasticity 18, 1583–1606] for steels exhibiting transformation induced plasticity, and from a flow localisation analysis developed along the lines of the model of Marciniak and Kuczinski Marciniak, Z., Kuczynski, K., 1967. Limit strains in the processes of stretch-forming sheet metal. Int. J. Mech. Sci. 9, 609–620]. A good account of the whole results can be obtained by considering the limits to ductility imposed by ductile fracture. |
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