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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 3    No. 3    September 1993

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SLIP LINE METHOD FOR SINTERED POWDER MATERIALS UNDER CONDITION OF AXIAL SYMMETRY DEFORMATION
Zhao Zhongzhi ; Hua Lin

Wuhan Institute of Technology; Wuhan 430070; China

Abstract:Slip line method for sintered powder materials under condition of axial symmetry is proposed based on the simplified yield condition of sintered powder materials and Haar-von Karman perfect plastic criterion. The equations of slip line and stress along slip line are derived, and numerical solutions are given. Deformation load in closed die upsetting of sintered copper cylinder is calculated by slip line method, and theoretical solutions are compared with experimental results.

 

Key words: sintered powder material axial symmetry deformation slip line method

ISSN 1672-7029
CN 43-1423/U

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