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An Interface Mechanical Model with a Cohesive to Frictional Transition

  • Autori: Borino, G.; Failla, B.; Parrinello, F.
  • Anno di pubblicazione: 2009
  • Tipologia: Capitolo o Saggio (Capitolo o saggio)
  • Parole Chiave: Interface, damage, cohesive fracture, process zone, frictional, cyclic loading, finite elements
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A thermodynamically consistent mechanical interface model is presented. The model is based on the interface damage mechanic theory applied in a special fashion such that the interface damage variable is also used as a parameter which drives the continuous and smooth transition from the sound initial cohesive state to the final fully fractured frictional state. Interface damage activation and fictional sliding are promoted by a damage activation function and a Coulomb frictional yielding function. The main features of the model are discussed in details and some numerical results for the material response are shown in monotonic and cyclic loading regimes.