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Shrink Flanging with Surface Contours
Institution:1. University of Michigan, Ann Arbor, Michigan, USA;2. Wayne State University, Detroit, Michigan, USA;1. IPEN-CNEN/SP, São Paulo, SP, Brazil;2. Departamento de Física, Univ. Federal de São Paulo, Diadema, SP, Brazil;1. Department of Plastic Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Republic of Korea;2. Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medical Center, Chicago, IL, USA;1. School of Engineering, Deakin University, Geelong, Australia;2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China;3. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, China;1. Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China;2. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China;1. Instituto Tecnológico de Sonora, Campus Náinari, Departamento de Eléctrica y Electrónica. Calle Antonio Caso S/N y E. Kino, Colonia Villa ITSON. C.P., 85130, Ciudad Obregón, Sonora, Mexico;2. Universidad de Guanajuato, Campus Irapuato-Salamanca, Departamento de Ingeniería Mecánica, Carretera Salamanca-Valle de Santiago, Km 3.5 + 1.8, 36885, Comunidad de Palo Alto, Salamanca, Guanajuato, Mexico;3. College of Science, Technology, Engineering and Mathematics, Youngstown State University, One University Plaza, Youngstown, OH, 44555, USA
Abstract:Experimental and analytical studies on shrink flanging with surface curvatures are presented in this paper. An analytical model is proposed to predict the circumferential strain along the flange edge as a function of bending angle under a given geometry condition. A semi-empirical failure criterion to capture the occurrence of wrinkling is also developed. Both the strain model and the wrinkling model are well supported by experiments. These models can be used as a practical design tool for shrink flanging process analysis.
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