Analysis of rotation for principal stress axes and application of WB model

被引：0
作者：
Wan Z. [1 ]
Kang F. [1 ]
Zhao X. [1 ]
Guo J. [1 ]
机构：
[1] China Academy of Building Research, Research Institute of Base and Foundation, Beijing
来源：
| 2018年 / Academia Sinica卷 / 37期
基金：
中国国家自然科学基金;
关键词：
Cyclic loading; Mohr's circle; Rotation of the principle stress axes; Soil mechanics; Triaxial compression; Volume plastic strain;
D O I：
10.13722/j.cnki.jrme.2017.0803
中图分类号：
学科分类号：
摘要：
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. © 2018, Science Press. All right reserved.
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页码：4308 / 4319
页数：11
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