Archive of Applied Mechanics

, Volume 83, Issue 11, pp 1549–1567

Multiple interacting cracks in an orthotropic layer

Authors

  • A. M. Baghestani
    • Department of Mechanical EngineeringAmirkabir University of Technology (Tehran Polytechnic)
  • A. R. Fotuhi
    • Department of Mechanical EngineeringYazd University
    • Department of Mechanical EngineeringAmirkabir University of Technology (Tehran Polytechnic)
Original

DOI: 10.1007/s00419-013-0761-6

Cite this article as:
Baghestani, A.M., Fotuhi, A.R. & Fariborz, S.J. Arch Appl Mech (2013) 83: 1549. doi:10.1007/s00419-013-0761-6

Abstract

The stress fields in an orthotropic layer containing climb and glide edge dislocations are obtained by means of the complex Fourier transform. Stress analysis in the intact layer under in-plane point loads is also carried out. These solutions are employed to derive integral equations for the layers weakened by several interacting cracks subject to in-plane deformation. The integral equations are of Cauchy singular type. These equations are solved numerically for the density of dislocations on a crack surface. The dislocation densities are utilized to derive stress intensity factor for cracks. Several examples are solved and the interaction between the two cracks is investigated.

Keywords

Orthotropic layerEdge dislocationMultiple cracksDistributed dislocation technique

Copyright information

© Springer-Verlag Berlin Heidelberg 2013