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On the Plastic Flow of Coulomb Solids Beyond Original Failure
146
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1959
Year
Abstract PrinciplesEngineeringMechanical EngineeringMechanics ModelingMechanicsStressstrain AnalysisRheologyVariable Yield FunctionMaterials SciencePhysicsMechanical BehaviorSolid MechanicsYield (Engineering)Material MechanicsPlasticityPlastic FlowMicrostructureViscoplastic FluidDynamic Constitutive BehaviorRigid-plastic SolidsMechanics Of MaterialsElectrical Insulation
Abstract Principles developed for rigid-plastic solids exhibiting Coulomb’s properties are adapted to the analysis of flow beyond original failure. A variable yield function is proposed to account for the changes of cohesion during flow and equations are evolved for the stress field in two dimensions. It is shown that, while in the stress field an effective angle of friction larger than the actual angle of friction is mandatory for these materials, in the velocity field the materials can be assumed incompressible.