Расчеты динамической ползучести и повреждаемости элементов конструкций из анизотропных материалов

Abstract

The paper is devoted to the calculations of dynamic creep and damage of structural elements made from orthotropic materials? By use of the method had been developed by authors. For these materials the creep-damage description were done by use of tensor relations which use tensor damage parameter for creep incremental theory. This relations were transformed to the dynamic creep-damage law for anisotropic materials by use of methods of many time scales and averaging over the period of loading. The calculations for cyclically loaded plane solids were done by use of Finite Element Method (FEM). The time variation of displacement components as well as stress and strain tensor fields for creep of plate with central hole made from titanium alloy were obtained numerically. By use of damage parameter value the fracture times were estimated.