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Generalized non-linear strength theory and transformed stress space
作者姓名:YAO Yangping  LU Dechun  ZHOU Annan & ZOU Bo
作者单位:YAO Yangping,LU Dechun,ZHOU Annan & ZOU Bo Department of Civil Engineering,Beihang University,Beijing 100083,China
基金项目:国家自然科学基金,科技部资助项目
摘    要:It is very important to describe the strength behavior of various materials undergeneral stress states. Present strength theories can be classified into two kinds: one islinear strength theory, such as Tresca criterion, Mohr-Coulomb criterion etc. By linearstrength theories, which have been widely used, some concrete solutions can be got inthe application of limit equilibrium theory. However, the Tresca criterion and theMohr-Coulomb criterion etc. cannot reflect the influence of intermediate…


Generalized non-linear strength theory and transformed stress space
YAO Yangping,LU Dechun,ZHOU Annan & ZOU Bo.Generalized non-linear strength theory and transformed stress space[J].Science in China(Technological Sciences),2004,47(6):691-709.
Authors:Email author" target="_blank">Yao?Yangping?Email author  Lu?Dechun  Zhou?Annan  Zou?Bo
Affiliation:Department of Civil Engineering, Beihang University, Beijing 100083, China
Abstract:Based on the test data of frictional materials and previous research achievements in this field, a generalized non-linear strength theory (GNST) is proposed. It describes non-linear strength properties on the π-plane and the meridian plane using a unified formula, and it includes almost all the present non-linear strength theories, which can be used in just one material. The shape of failure function of the GNST is a smooth curve between the SMP criterion and the Mises criterion on the π-plane, and an exponential curve on the meridian plane. Through the transformed stress space based on the GNST, the combination of the GNST and various constitutive models using p and q as stress parameters can be realized simply and rationally in three-dimensional stress state.
Keywords:generalized non-linear strength theory (GNST)  transformed stress  constitutive model  applica-  tion  
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