EFFECT OF SPATIAL VARIATION OF THERMAL CONDUCTIVITY ON MAGNITUDE OF TENSILE THERMAL STRESSES IN BRITTLE MATERIALS SUBJECTED TO CONVECTIVE HEATING.

K. Satyamurthy, D. P.H. Hasselman, J. P. Singh, M. P. Kamat

Research output: Contribution to conferencePaperpeer-review

Abstract

Results are presented for the effect of spatially varying thermal conductivity on the tensile thermal stress developed in a solid and a hollow circular cylinder subjected to different heating conditions. It is shown that the maximum tensile thermal stress in brittle ceramics can be reduced significantly by redistributing the temperature profile using a spatial variation in thermal conductivity; a spatial variation in pore content which in turn changes the density, thermal conductivity and modulus of elasticity; and by considering the effect of temperature on the thermal conductivity and specific heat. Possible methods for creating such variations in the material properties are discussed.

Original languageEnglish (US)
DOIs
StatePublished - 1980
EventTherm Stresses in Sev Environ, Proc of the Int Conf on Therm Stresses in Mater and Struct in Sev Therm Environ - Blacksburg, VA, USA
Duration: Mar 19 1980Mar 21 1980

Other

OtherTherm Stresses in Sev Environ, Proc of the Int Conf on Therm Stresses in Mater and Struct in Sev Therm Environ
CityBlacksburg, VA, USA
Period3/19/803/21/80

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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