Journal of Theoretical
and Applied Mechanics

0, 0, pp. , Warsaw 0

The thermoelastic state of a bi-material with an open gas-filled interface crack

Kristina Serednytska, Rostyslav Martynyak, Kostyantyn Chumak
The thermoelastic behavior of a bi-material with a gas-filled interface crack is investigated. The bi-material is subjected to a uniform tensile load and a uniform heat flow. The gas exerts pressure on the crack surfaces and offers thermal resistance proportional to the crack opening. The gas state is assumed to be described by the ideal gas law. The effects of the gas mass, gas thermal conductivity and heat flux on the crack opening, interface temperature jump, gas pressure and stress intensity factors are analyzed. It is revealed that a bi-material with a heat-conducting crack exhibits the heat flow directional effect.
Keywords: bi-material, interface crack, ideal gas, pressure, thermal resistance


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