INFLUENCE OF TEMPERATURE ON BEHAVIOR OF THE INTERFACIAL CRACK BETWEEN THE TWO LAYERS

Abstract

In this paper is considered a problem of the semi-infinite crack at the interface between the two elastic isotropic layers in conditions of the environmental temperature change. The energy release rate needed for the crack growth along the interface was determined, for the case when the two-layered sample is cooled from the temperature of the layers joining down to the room temperature. It was noticed that the energy release rate increases with the temperature difference increase. In the paper is also presented the distribution of stresses in layers as a function of the temperature and the layers' thickness variations. Analysis is limited to the case when the bimaterial sample is exposed to uniform temperature.

Dates

  • Submission Date2010-06-03
  • Revision Date2010-06-23
  • Acceptance Date2010-06-27

DOI Reference

10.2298/TSCI100603013D

References

  1. Evans, A.G. and J. W. Hutchinson, The thermo mechanical integrity of thin film and multilayers, Acta Metall. Mater., Vol. 43 (1995), pp. 2507-2530.
  2. Evans, A.G. and J. W. Hutchinson, The mechanics of coating delamination in thermal gradients, Surface&Coatings Technology, 149 (2007), pp. 179-184.
  3. Hutchinson, J. W. and A.G. Evans, On the delamination of thermal barrier coatings in thermal gradients, Surface&Coatings Technology, 201 (2002), pp. 7905-7916.
  4. Xue, Z., Evans, A.G., Hutchinson, J.W., Delamination Susceptibility of coatings under high thermal flux, J. Appl. Mech., 76, (2009),pp. 1-7.
  5. Jovičić, G. Et al., Residual life estimation of a power plant component - the high-pressure turbine housing case, Thermal Science, 149 (2009), pp. 99-106.
  6. Suo Z., Hutchinson, J. W. , Interface crack between two elastic layers, Int. J. Fracture Vol. 43 (1990), pp. 1-18.
  7. Dundurs J, Elastic Interaction of Dislocations with Inhomogeneities, in Mathematical Theory of Dislocations, T. Mura ed. ASME, New York, 1969, pp. 77-114.
  8. Rice J.R., Elastic fracture mechanics concepts for interfacial cracks, J.Appl.Mech., vol.55, (1988), pp. 98 - 103.
  9. Veljkovic J.M., Nikolic, R.R., Application of the interface crack concept to the problem of a crack between a thin layer and a substrate, Facta universities, Vol. 3 (2003), pp. 573-581.
  10. Hutchinson, J. W., Suo Z., Mixed mode cracking in layered materials, Advances in Applied Mechanics, Vol. 29 (1992), pp. 63-191.
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