Viscoelastic Modeling of Ground Response to Strong Surface Waves
نویسنده
چکیده
Abstract: Since soil dynamic behaviour is nonlinear in nature therefore a nonlinear viscoelastic model for isotropic materials is proposed in this study. This model is a combination of inelasticity and nonlinear damping. In this model, the shear modulus is taken as a function of the excitation level. The viscosity is assumed to vary nonlinearly. The validity of this model is checked for low amplitude ground motion response towards strong seismic waves. This method is imposed into a one dimensional finite element approach for a dry soil. The validation of this model is studied for cyclical loading. This model is based on the principle of nonlinear elasticity and nonlinear viscoelasticity which investigate the ground response to strong surface waves excitation. Finally, finite element method is introduced for numerical calculations. Mathematics Subject Classification: 74S05; 74D10; 74J15; 74J30.
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