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Archive of Applied Mechanics

, Volume 70, Issue 8–9, pp 625–634 | Cite as

M-integral analysis for microcrack-damaged anisotropic composite materials

  • J.-J. Han
  • Y.-H. Chen
Article

Summary

 This paper presents an M-integral analysis for the microcracked anisotropic composite materials. By using an elementary solution derived for a single finite crack subjected to a concentrated force on crack faces, the problem of strong interacting, arbitrarily oriented and located microcracks in an anisotropic composite materials is reduced to a system of Fredholm integral equations. The crack-tip fracture parameters, such as the stress intensity factors, are evaluated from a numerical solution of the system of integral equations. Its dependence on the coordinate system, calculation, and physical interpretation of the M-integral are discussed in the interaction problem. Finally, a numerical example of the damage evaluation by the M-integral analysis is given.

Key words Composite material, damage, M-integral, interaction, microcrack, potential energy 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • J.-J. Han
    • 1
  • Y.-H. Chen
    • 1
  1. 1.Department of Engineering Mechanics, Xi'an Jiaotong University, P.R. ChinaChina

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