Thermal stresses in elastodynamics of composite materials

摘要

The elastic composite materials are usually investigated using the micromechanical approaches in which the micro-periodic heterogeneity of the composite is scaled down and hence the microstructure length-scale effect on the macro-behaviour of the composite body is neglected. However, in elastodynamics of composite materials the length-scale effect can play a crucial role, and hence also thermal stresses in dynamic problems have to be investigated using a certain length-scale model of a composite. The main aim of the contribution is to propose a new model of elastic periodic composites, which describes the length-scale effects and is simple enough to use in calculations of thermal stresses in non-stationary processes.