4441

4191

كارشناسي ارشد

خاك و پي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران

1387

يازده، 172، [II]ص: مصور ، جدول، نمودار

ص. ع به : فارسي و انگليسي

1396/09/11

كتابنامه

مهندسي عمران

ID4191

به فارسي و انگليسي : قابل رويت در نسخه ديجيتال

AbstractIn this research using of classical plasticity and critical state framework a unified two surface constitutive model developed to simulate nonlinear behavior of various soil such asloose and dense sands normally consolidated and over consolidated clays during differentkinds of monotonic loadings The model describes strain softening and stress dilatancywith using non associated flow rule that implements dilatancy parameter The comparisonof experimental data with the results obtained from numerical simulation have shown highperformances of the proposed model to simulating drained and undraind responses of soilsunder in triaxial as well as soil response under drained laterally confined K0 condition Inthe second part of the research a simple and efficient bounding surface plasticity modeltaking account to fabric change was used to simulate cyclic behavior of saturated sands Having the model modified the new model can be used to predict the soil liquefactionphenomenon under earthquake loading Should this model be implemented in a FEMmodel hysteretic damping and stiffness degradation which have very important role onsoil structure interaction under cyclic loading could accounted accurately

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