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International Journal of Fracture

, Volume 154, Issue 1–2, pp 195–209 | Cite as

Interaction between cracking, delamination and buckling in brittle elastic thin films

  • W. P. Vellinga
  • M. Van den Bosch
  • M. G. D. Geers
Open Access
Original Paper

Abstract

A discrete lattice based model for the interaction of cracking, delamination and buckling of brittle elastic coatings is presented. The model is unique in its simultaneous incorporation of the coating and of disorder in the interface and material properties, leading to realistic 3D bending (and buckling) behavior. Results are compared to the literature. In the case of cracking, the key role of a stress transfer correlation length ξ in establishing a scaling behavior for the brittle fracture of thin films is shown to extend to all geometrical and material properties involved. In the scaling regime of crack density in uniaxial tension cracking and delamination are found to occur simultaneously. In uniaxial tension of films with an internal biaxial compressive stress, the predicted initiation of buckles above delaminated areas near crack edges in the model is remarkably similar to experimental results.

Keywords

Cracking Delamination Buckling Lattice model 

Notes

Acknowledgements

This work was financed by SENTER/IOP under grant IOT97002.

Open Access

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution,and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2008

Authors and Affiliations

  • W. P. Vellinga
    • 1
  • M. Van den Bosch
    • 2
  • M. G. D. Geers
    • 2
  1. 1.Applied PhysicsUniversity of GroningenGroningenThe Netherlands
  2. 2.Mechanical EngineeringUniversity of Technology EindhovenEindhovenThe Netherlands

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