چکیده مقاله
This contribution introduces a new elastoplastic damage model dedicated to constitutive modeling of semi brittle geomaterials like argillaceous formations showing two irreversible phenomena The model deals with the plastic behavior of such medium by a new thermal variant of Barcelona Basic Model In addition, micromechanical definition of damage and phenomenological concepts of damage propagation are combined in the framework of Continuum Damage Mechanics CDM for damage modeling Damaged effective stress variables are employed for formulation of elastoplastic behavior laws Plastic yield surface is a damage dependent one The model has been implemented in Θ STOCK Code and the mechanical aspects of the model have been validated by comparing the numerical results with reference experimental results of argillites and results of an elastodamage model
کلیدواژهها
نویسندگان
Ali Alizadeh
PhD Student, Department of Civil Engineering, University of Tehran, Tehran, Iran
Behrouz Gatmiri
PhD Student, Department of Civil Engineering, University of Tehran, Tehran, Iran Professor, Agence Nationale pour la gestion des Dchets RAdioactifs ANDRA , France
شیوه ارجاع
Alizadeh, Ali and Gatmiri, Behrouz,1394,A New Elastoplastic Damage Model for Constitutive Modeling of Argillaceous Formations,10th International Congress on Civil Engineering,Tabriz
ارائهشده در
مجموعه مقالات دهمین کنگره بین المللی مهندسی عمران15 اردیبهشت 1394 · تبریز