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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/13360

Title: Rigid-plastic finite element analysis of plastic deformation of porous metal sheets containing internal void defects
Authors: Chen, Dyi-Cheng
Contributors: 工業教育與技術學系 
Keywords: Rigid-plastic finite element;Porous metals rolling;Void defect
Date: 2006-12
Issue Date: 2012-08-27T05:50:17Z
Publisher: Elsevier B.V
Abstract: Using rigid-plastic finite element DEFORM-2D and -3D software, this study simulates the plastic deformation of metal sheets at the roll gap during the sheet rolling process. The study focuses specifically upon the deformation of porous metal sheets containing internal void defects. The present numerical analysis investigates the relative density distributions, the void closure behavior, the deformation mechanisms and the stress–strain distributions around the internal voids for various rolling conditions. The influences on the dimensions of the final void of the thickness reduction, the initial internal void dimensions, the friction factors and the relative density are systematically discussed. The critical rolling conditions also investigated. A series of sheet rolling experiments are performed in order to verify the validity of the simulation results. The current numerical results provide a valuable source of reference for the design of pass schedules for porous metals undergoing rolling processes.
Relation: Journal of Materials Processing Technology, 180(1-3): 193-200
Appears in Collections:[工業教育與技術學系] 期刊論文

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