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.1 din 2009  
         
  Articol:   A FRICTIONLESS ELASTIC-VISCOPLASTIC CONTACT PROBLEM WITH NORMAL COMPLIANCE, ADHESION AND DAMAGE.

Autori:  LAMIA CHOUCHANE, LYNDA SELMANI. 		 
       
         
  Rezumat:  We study a quasistatic frictionless contact problem with normal compliance, adhesion and damage for elastic-viscoplastic material. The adhesion of the contact surfaces is modeled with a surface variable, the bonding field, whose evolution is described by a first order differential equation. The mechanical damage of the material, caused by excessive stess or strains, is described by a damage function whose evolution is modeled by an inclusion of parabolic type. We provide a variational formulation of the problem and prove the existence and uniqueness of a weak solution. The proofs are based on time-dependent variational equalities, classical results on elliptic and parabolic variational inequalities, differential equations and fixed point arguments.

Key words and phrases: quasistatic process, elastic-viscoplastic material, damage, normal compliance,adhesion, weak solution, variational equality, ordinary differential equation, fixed point. 		 
         
     
         
         
      Revenire la pagina precedentă