主应力轴旋转分析及WB模型的应用

doi:10.13722/j.cnki.jrme.2017.0803

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Abstract

The unignorable volume plastic strain and irreversible shear strain would be produced due to the rotation of the principle stress axes. The process of rotation of principle stress axes is decomposed in order to explore the causes of the rotation of the principle stress axes. The step for rotation of principle stress axes is divided into a process that the superposition of self rotation to XYZ axes in physical space. The relationship between rotation angle of principle stress axes and arctangent value of ratio between shear stress and normal stress in Mohr¢s circle is established. The rotation process around single axes for cubical unit is analyzed in physical space. The pure rotation of principle stress axes in cyclic loading condition and round-trip loading condition and conventional triaxial compression condition are modeled by using the proposed incremental model. The simulation result has been shown that it is effective to use the proposed model to predict the deformation of geomaterials under rotation of principle stress axes condition.

Key words： soil mechanics rotation of the principle stress axes volume plastic strain Mohrs circle cyclic loading triaxial compression

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	Articles by authors
	WAN Zheng
	KANG Fuzhong
	ZHAO Xiaoguang
	GUO Jinxue

Cite this article:

WAN Zheng,KANG Fuzhong,ZHAO Xiaoguang, et al. Analysis of rotation for principal stress axes and application of WB model[J]. , 2018, 37(S2): 4308-4319.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0803 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4308

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