Shear-Mode Viscoelastic Damage Formulation Interface Element

Abstract:

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.

• Periodical: Key Engineering Materials (Volume 713)
• Pages: 167-170
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.713.167
• Online since: September 2016
• Authors: M. Saeed Goodarzi*, Hossein Hosseini-Toudeshky, Meisam Jalalvand
• Keywords: Cohesive Zone, Delamination, Interface Element, Viscoelasticity

References

[1] H.D. Wagner, F.R. Tuler and G. Marom: Polymer Vol. 20-5 (1979), p.653–658.

[2] S. Hashemi, A.J. Kinloch and J.G. Williams: J. Compos. Mater. Vol. 24-9 (1990), p.918–956.

[3] A. Corigliano and M. Ricci: Int. J. Solids Struct., Vol. 38-4 (2001), p.547–576.

[4] M. Musto and G. Alfano: Comput. Struct., Vol. 118 (2013), p.126–133.

[5] F. Mainardi and G. Spada: The European Phys. J. Vol. 193 (2011), p.41.