Study on Nonlinear Viscoelasto-Plastic Creep Model of Deep Soft Rock

Yan Chun Wang; Yong Yan Wang

doi:10.4028/www.scientific.net/AMR.430-432.168

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 430-432Study on Nonlinear Viscoelasto-Plastic Creep Model...

Study on Nonlinear Viscoelasto-Plastic Creep Model of Deep Soft Rock

Abstract:

Based on the mechanical behaviors of deep soft rock at the accelerating creep stage, a nonlinear rheological cell containing exponential equation replaces classic linear cell, a new nonlinear viscoelasto-plastic creep model of deep soft rock is established on the basis of Nishihara model, and the model can describe the three stages of rock nonlinear creep. Using the least squares method of Matlab to investigate test results, the result shows the new nonlinear creep model accords better with the creep test curves, and verify correctness of the new model.

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Periodical:

Advanced Materials Research (Volumes 430-432)

Pages:

168-172

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.430-432.168

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Online since:

January 2012

Authors:

Yan Chun Wang, Yong Yan Wang

Keywords:

Deep Soft Rock, Nishihara Model, Nonlinear Creep Model

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References

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