Experimental research and numerical analysis of frozen soil based on endochronic theory

Zhiwu Zhu, Jianguo Ning, Shuncheng Song

doi:10.6052/0459-1879-2009-4-2008-017

Volume 41 Issue 4

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Zhiwu Zhu, Jianguo Ning, Shuncheng Song. Experimental research and numerical analysis of frozen soil based on endochronic theory[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(4): 549-554. doi: 10.6052/0459-1879-2009-4-2008-017

Citation:

Zhiwu Zhu, Jianguo Ning, Shuncheng Song. Experimental research and numerical analysis of frozen soil based on endochronic theory[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(4): 549-554. doi: 10.6052/0459-1879-2009-4-2008-017

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Experimental research and numerical analysis of frozen soil based on endochronic theory

doi: 10.6052/0459-1879-2009-4-2008-017

Zhiwu Zhu, Jianguo Ning, Shuncheng Song

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, 100081 Beijing, China Department of Applied Mechanics and Engineering, Southwest Jiaotong University, Chengdou 610031,China

Received Date: 2008-01-10
Rev Recd Date: 2008-03-12
Publish Date: 2009-07-18

Abstract

Abstract

Based on the endochronic theory, the basic principle ofthe irreversible thermodynamics of continuum media was used to derive a newendochronic rheological constitutive equation of frozen soil by redefiningthe intrinsic times. The corresponding parameters in the endochronicequations can be determined by the method of the Matlab fitting. Thesolution, analysis and experimental validation of the new equations underuniaxial and triaxial stress were performed. The stress-strain curves oftheoretical calculation are very consistent with the experimental results.Therefore endochronic theory, compared with plastic theory, can be used toavoid the determination of yield surface. Finally, by utilizing theconstitutive relation, we discuss and analyze the numerical solutions offrozen roadbed. The results indicate that the endochronic theory has itsextensive applicability.
- frozen soil,
- experimental research,
- rheology,
- inelasticity,
- numerical analysis