Dynamaic Progressive Failure Analysis of Reinforced Small Embankment Dams by Kinematic Hardening Elasto-plastic Constitutive Model

다국어 초록 (Multilingual Abstract)

A kinematic hardening model considering the cumulative deformation by cyclic loading is developed based on a modified and extended soil model of isotropic strain-hardening-softening property in order to take into account the cyclic behavior. Within bounding surface, plastic behavior is assumed and the hardening modulus is defined by a plastic parameter which is cleared to zero at stress path reversal point. The dilatancy angle is also defined by applying the stress dilatancy relation of soils. Finite element analyses employing the cyclic visco-plastic constitutive model are applied to dynamic analyses of two-dimensional reinforced embankment dams. The results of finite element analyses are compared with those from the physical experiments. The computed deformations of model dams show similar deformation pattern as for model experiments.

목차 (Table of Contents)

• ABSTRACT
• 1. INTRODUCTION
• 2. ELASTO-PLASTIC CONSTITUTIVE EQUATION
• 3. CONSTITUTIVE MODEL OF VISCO-PLASTICITY
• 4. TRIAXIAL TEST SIMULATION
• 5. GEOBAG BEHAVIOR UNDER SHEAR FORCES
• 6. DYNAMIC PROGRESSIVE FAILURE OF REINFORCED EMBANKMENT DAM
• 7. CONCLUSIONS
• REFERENCES