Model of temperature-nonequilibrium elementary cell for heterogeneous materials with a disperse micro-spherical filler /Russian-French Symposium on Composite Materialsтезисы доклада
Дата последнего поиска статьи во внешних источниках: 25 ноября 2020 г.
Место издания:N.N. Semenov Institute of Chemical Physics RAS Москва
Первая страница:84
Последняя страница:85
Аннотация:Methods for calculating equations of state (EOS) of heterogeneous materials (GM) using the EOS of their components are of considerable practical interest and developing intensively. It is known, for GM, which absorbs the radiation, there is no EOS in the usual sense (as a means of describing the sequence of quasi-statically changing the equilibrium states). Finding relationships to describe the GM behavior has to be used in conjunction with the calculation of the energy characteristics. This is necessary because the stresses setting to the material depend on the energy doles absorbed in the filler and binder. Thermal nonequilibrium of GM components is the result of transient radiation absorption. It has a fundamental and decisive importance. To emphasize this fact we shall not call EOS when we have the relations describing the behavior of GM, non-equilibrium absorbing radiation. We'll call them the defining equations (DEQ). In this paper we propose a method for constructing DEQ of heterogeneous material by known EOS of its components and the energy doles absorbed in the filler and binder. Wide-range non-equilibrium model of the elementary cell having dispersed microspherical fillers is offered. It is assumed that the cell is generally in a uniaxial strain state. Calculation of the stresses within the elementery cell is based on the numerical solution of two-dimensional equations of equilibrium of an elastic medium in a cylindrical coordinate system. This system of equations is complemented by wide-range EOS of GM components.