Thermo-elastodynamic response of a spherical cavity in saturated poroelastic medium |
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Authors: | Ganbin Liu Kanghe Xie Rongyue Zheng |
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Institution: | 1. College of Civil, Construction and Environmental Engineering, Ningbo University, Ningbo 315211, PR China;2. Institution of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, PR China |
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Abstract: | In this paper, an attempt has been made to investigate the thermo-hydro-elastodynamic response of a spherical cavity in isotropic saturated poroelastic medium when subjected to a time dependent thermal/mechanical source. The fully coupling thermo-hydro-elastodynamic model is presented on the basis of equations of motion, fluid flow, feat flow and constitutive equation with effective stress and temperature change. Solutions of displacement, temperature and stresses are obtained by using a semi-analytical approach in the domain of Laplace transform. Numerical results are also performed for portraying the nature of variations of the field variables, i.e. the coefficient of thermo-osmosis, the permeability. In addition, comparisons are presented with the corresponding partially thermo-hydro-elastodynamic model and thermo-elastodynamic model to ascertain the validity and the difference between these models. |
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Keywords: | Thermo-hydro-elastodynamic response Spherical cavity Poroelastic medium Laplace transform |
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