Applied Mathematics and Mechanics

, Volume 14, Issue 8, pp 745–752 | Cite as

On crack-tip strain energy release rate in non-principal directions of elasticity for simple layer plate of composite materials

  • Yang Wei-yang
  • Zhang Shao-qin
Article
  • 23 Downloads

Abstract

In this paper, the fracture problem in non-principal directions of elasticity for a simple layer plate of linear-elastic orthotropic composite materials is studied. The formulae of transformation between characteristic roots, coefficients of elastic compliances in non-principal directions of elasticity and corresponding parameters in principal directions of elasticity are derived. Then, the computing formulae of strain energy release rate under skew-symmetric loading in terms of engineering parameters for principal directions of elasticity are obtained by substituting crack-tip stresses and displacements into the basic formula of the strain energy release rate.

Key words

strain energy release rate non-principal directions of elasticity central through crack skew-symmetric loading orthotropic composites 

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Copyright information

© Shanghai University of Technology (SUT) 1993

Authors and Affiliations

  • Yang Wei-yang
    • 1
  • Zhang Shao-qin
    • 1
  1. 1.Taiyuan Heavy Machinery InstituteTaiyuan

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