Rezumat articol ediţie STUDIA UNIVERSITATIS BABEŞ-BOLYAI

În partea de jos este prezentat rezumatul articolului selectat. Pentru revenire la cuprinsul ediţiei din care face parte acest articol, se accesează linkul din titlu. Pentru vizualizarea tuturor articolelor din arhivă la care este autor/coautor unul din autorii de mai jos, se accesează linkul din numele autorului.

 
       
         
    STUDIA MATHEMATICA - Ediţia nr.2 din 2009  
         
  Articol:   VARIATIONAL ANALYSIS OF A ELASTIC-VISCOPLASTIC CONTACT PROBLEM WITH FRICTION AND ADHESION.

Autori:  SALAH DRABLA, ZHOR LERGUET. 		 
       
         
  Rezumat:   The aim of this paper is to study the process of frictional contact with adhesion between a body and an obstacle. The material’s behavior is assumed to be elastic-viscoplastic, the process is quasistatic, the contact is modeled by the Signorini condition and the friction is described by a non local Coulomb law coupled with adhesion. The adhesion process is modelled by a bonding field on the contact surface. We derive a variational formulation of the problem, then, under a smallness assumption on the coefficient of friction, we prove an existence and uniqueness result of a weak solution for the model. The proof is based on arguments of time-dependent variational inequalities, differential equations and Banach fixed point theorem.

Key words and phrases: Elastic-viscoplastic material, non local Coulomb friction law, adhesion, variational inequality, weak solution, fixed point.

  
         
     
         
         
      Revenire la pagina precedentă