金属材料屈服准则的线性化统一形式及其应用
A Linearized and Unified Yield Criterion of Metals and Its Application
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摘要: 本文介绍金属材料屈服准则的线性化统一形式,它是一族包含两个材料常数的十二边形,文[1]所提出结果的线性化近似,因此在应用中更显得方便.文中应用这种线性化准则进行了松套圆筒自增强分析.Abstract: In this paper a linearized and unified yield crierion of metals is presented,which is in a form of a set of linear functions with two pararneters.The parameters are expressed in terms of tension yield stress and so-called "shear-stretch ratio" and can bereadily determined from experimental data.It is shown that in stress space the set of yield functions is a set of polygons with twelve edges located between the Tresca's hexagon and twin-shear-stress hexagon[1].In this paper the present yield function isused to analyse the prestressiap loose running fit cylinders.
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Key words:
- ratio of shear-stretch /
- yield criterion /
- linearized and unified form
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[1] 谭继锦科学通报7(1990). [2] 俞链铱、何丽南、宋凌宇,中国科学A(12)(1985), [3] 熊惫而,湖南大学学报,16(2)(1989), [4] Chu Shih-chi.A-D732407 U.S.Army Weapona Commend,10(1971). -
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