Shear-mode viscoelastic damage formulation interface element

M. Saeed Goodarzi, Hossein Hosseini-Toudeshky, Meisam Jalalvand

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In this paper, a viscoelastic-damage cohesive zone model is formulated and discussed. The interface element constitutive law has two elastic and damage regimes. Viscoelastic behaviour has been assumed for the shear stress in the elastic regime. Three element Voigt model has been used for the formulation of relaxation modulus of the material. Shear Stress has been evaluated in the elastic regime of the interface with integration over the history of the applied strain at the interface. Damage evolution proceeds according to the bilinear cohesive constitutive law up to the complete decohesion. Numerical examples for one element model has been presented to see the effect of parameters on cohesive constitutive law.

Original languageEnglish
Title of host publicationAdvances in Fracture and Damage Mechanics XV
Number of pages4
Publication statusPublished - 30 Sep 2016
Event15th International Conference on Fracture and Damage Mechanics, FDM 2016 - Alicante, Spain
Duration: 14 Sep 201616 Sep 2016

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826


Conference15th International Conference on Fracture and Damage Mechanics, FDM 2016


  • cohesive zone
  • delamination
  • interface element
  • viscoelasticity


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