B. V. Gorev, I. V. Lubashevskaya, V. A. Panamarev, S. V. Iyavoynen, “Description of creep and fracture of modern construction materials using kinetic equations in energy form”, Prikl. Mekh. Tekh. Fiz., 2014, Volume 55, Issue 6,Pages <nobr>132

This article is cited in 12 papers

Description of creep and fracture of modern construction materials using kinetic equations in energy form

B. V. Gorev^a, I. V. Lubashevskaya^a, V. A. Panamarev^b, S. V. Iyavoynen^c

^a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
^b Siberian State Industrial University, Novokuznetsk, 654007, Russia
^c Novosibirsk State University, Novosibirsk, 630090, Russia

Abstract: It has been shown experimentally and theoretically that the equations of the Rabotnov kinetic theory of creep with a scalar damage parameter can be used to describe the deformation (up to fracture) of metallic materials in creep without restrictions on the creep strain and energy dissipation at the moment of fracture. In finding the functional dependences in the equations of creep and damage, the damage parameter is determined by the amount of normalized specific energy dissipation in the process of material creep under the necessary condition of similarity of the initial creep curves for constant stresses and temperatures in the normalized variables.

Keywords: kinetic theory of creep, fracture, scalar damage parameter, equivalent stresses, normalized specific energy dissipation.

UDC: 539.374+376

Received: 03.12.2013
Revised: 03.02.2014