Open AccessДинамический термоупругий эффект в материалах с дефектной структурой
Author(s) -
А.Л. Глазов,
К.Л. Муратиков
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.05.50805.008
Subject(s) - thermoelastic damping , thermal expansion , materials science , adiabatic process , elastic modulus , thermodynamics , deformation (meteorology) , thermal , composite material , physics
Within the framework of the thermodynamic approach, the temperature change during adiabatic elastic deformation of solids (thermoelastic effect) is determined taking into account the presence of internal defects. The contribution of the defect structure of the material to the Kelvin’s relation in the presence of mechanical stresses in the material is determined. It is shown that changes in the coefficient of thermal expansion of a material caused by the dependence of the elastic modulus and the concentration of defects on temperature can have the opposite direction.