Calculation of Stress Intensity Factor for Orthotropic Composite Specimen by FEM

  • T. H. Mao
Conference paper


In this paper, based on the orthotropic theory, the stress distribution in front of the crack tip and the stress intensity factor for a finite specimen with central crack were calculated by FEM using eight nodes isoparametric elements with singular elements at crack tip. For the specimen with crack perpendicular to the loading direction, only one quarter of the specimen was consided, because of the symmetry. For specimen with inclined crack, half of the specimen was consided, because of the asymmetry. The calculated stress intensity factors agreed well with the previous results by Bowie, Gandhi and Tong.


Stress Intensity Factor Central Crack Incline Crack Orthotropic Rectangular Plate Calculated Stress Intensity Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Sih, G.; Paris, P.C. and Irwin, G.R.; On cracks in rectilinearly anisotropic bodies. Int’l J. Frac. Mech. 1(1965) 189–203.Google Scholar
  2. 2.
    Bowie, O.L.; Neal, D.M.; A modified mapping-collocation technigue for accurate calculation of stress intensity factors. Int’l. Frac. Mech. 6(1970) 199–206Google Scholar
  3. 3.
    Gandhi, K.R.; Analysis of an inclined crack centrally placed in an orthotropic rectangular plate. J. Strain Analysis 7(1972) 157–162.CrossRefGoogle Scholar
  4. 4.
    Lin, K.Y.; Tong, P.; A hybrid crack element for the fracture mechanics analysis of composite materials. Proc.1st Int’l conf. Numerical Methods in Frac. Mech. by Luxmore, A.R. Owen, D.R.J, (eds.) Swansea, 1978.Google Scholar

Copyright information

© Springer Japan 1986

Authors and Affiliations

  • T. H. Mao
    • 1
  1. 1.Institute of Mechanics, Academia SinicaBeijingChina

Personalised recommendations