Rigid-plastic boundary element analysis of the upsetting of slabs |
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| Affiliation: | 1. Department of Chemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India;2. Department of Chemistry, University of Otago, Dunedin 9054, New Zealand;1. Warwick Manufacturing Group, The University of Warwick, Coventry, CV4 7AL, UK;2. ai-garismo, 1 Sandover House, 124 Spa Road, London, SE16 3FD, UK;3. POSCO Research Labs, 8, Pokposarang-gil, Gwangyang-si, Jeonnam, 545-875, South Korea;4. George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, 80401, USA;1. Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sippy Downs, QLD 4556, Australia;2. Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia;1. Southern Cross Plant Science, Southern Cross University, Lismore, NSW, Australia;2. Wesley Medical Research Institute, Wesley Hospital, Auchenflower, QLD, Australia;3. School of Medicine, University of Queensland, St Lucia, QLD, Australia;4. School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, Gold Coast, QLD, Australia |
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| Abstract: | This paper presents an innovative approach for analysing plane strain metal forming processes. The proposed approach is based on the rigid-plastic boundary element method for slightly compressible material models.The main advantage of the rigid-plastic boundary element method over existing numerical simulation methods is the necessity of requiring the unknowns to be mainly set at the contour of the workpiece, simplifying the analysis and offering additional computational advantages.A numerical example consisting of the frictionless upsetting of rectangular slabs between flat anvils under plane strain conditions is included to show the applicability of the proposed approach. Assessment with the analytically exact solution is made in terms of geometry, pressure and distribution of strain and stress inside the workpiece. |
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