Analysis of torsional deformation by rigid-plastic finite element method using recurrent boundary conditions

In metal forming, there are problems with recurrent geometric characteristics and without explicitly prescribed boundary conditions. In such problems, for effective saving in computational time, so-called recurrent boundary conditions must be introduced. The present study deals with rigid-plastic finite element analysis for torsions of circular, square and rectangular bar sections. The application of recurrent boundary condition to the torsion problems has been shown to be effective and valid. The torsional torques computed by the present method are compared with those by the analytical method. Both pure torsion and warping-restraint torsion are computed and compared between the two in torque and deformation pattern. It is proven that spring-back can be predicted reasonably by rigid-plastic loading and elastic unloading. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2006-02
Language
ENG
Citation

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, v.182, no.1-3, pp.303 - 311

ISSN
0924-0136
DOI
10.1016/j.jmatprotec.2006.08.008
URI
http://hdl.handle.net/10203/3020
Appears in Collection
ME-Journal Papers(저널논문)
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