Chapter
Apr 26, 2012
Modeling of Rheological Behavior of Geomaterials Based on Fractional Viscoelastic Equation with Variable Parameters
Authors: Yifei Sun [email protected], Liu Hanlong [email protected], Yang Xiao [email protected], Hongmei Gao [email protected], and Yunliang Cui [email protected]Author Affiliations
Publication: Instrumentation, Testing, and Modeling of Soil and Rock Behavior
Abstract
Traditional fractional visco-elastic models with constant parameters cannot well depict the rheological behavior of geomaterials. The purpose of this paper is to weaken or eliminate the defects of fractional visco-elastic models by replacing some constant parameters with variable ones. Numerical simulation with the corresponding experimental data shows that the modified model can better describe the rheological behavior of geomaterials. Moreover, it is worth pointing out that the fractional order has a strong relationship with the deviatoric stress, which is suggested to be exponential in this paper.
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Published In
Instrumentation, Testing, and Modeling of Soil and Rock Behavior
Pages: 107 - 114
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Affiliations
Master, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
Professor, Director and Dean, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, College of Civil Engineering and Transportation, Hohai University, Nanjing 210098, China.E-mail: [email protected]
Ph.D. Candidate, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
Ph.D. Candidate, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
Ph.D. Candidate, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
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