UPPER BOUND METHOD FOR SINTERED POWDER MATERIALS IN PLANE STRAIN

来源期刊：中国有色金属学报(英文版)1994年第2期

论文作者：Hua Lin Zhao Zhongzhi

文章页码：86 - 91

Key words：sintered powder material; upper bound method; plane strain

Abstract: Yield condition of sintered powder materials are introduced briefly,the velocity discontinuity law of which in plane strain is deduced and equation of upper bound power for plane strain isderived.The upper bound solution of pressure for sintered powder materials in smooth plate upsetting is derived from the upper bound method,and theoretical calculation is verified by experimentof smooth plate upsetting with rectangular specimen of sintered copper.