疲劳是机械结构最普遍的失效模式之一. 自1854 年第一次提出“Fatigue”(疲劳) 概念以来,
相关研究已有160 余年的历程, 逐步形成了以疲劳研究为基础的机械结构强度理论与技术 …

A large percentage of power, petroleum, and chemical plants the world over have been in
operation for such long durations that the critical components in these plants have been …

A one step forward gradient time integration scheme is developed which leads to a tangent
stiffness type method for rate dependent solids. Within the context of small strain theory …

A unified derivation of crack tip flux integrals and their associated domain representations is
laid out in this paper. Using a general balance statement as the starting point, crack tip …

Given a general balance statement we derive an expression for the associated crack tip flux
integral. The conditions under which the integral is physically meaningful and yields a non …

Abstract The Finite Element (FE) model of a Compact Tension C (T) specimen, made of P91
steel with different values of loading conditions and holding times, has been chosen for …

The problem of characterizing crack growth under small scale creep and transition
conditions is of great practical significance. This paper defines a crack tip parameter Ct for …

The degrading effect of hydrogen on high strength steels is well recognized. The hydrogen
degradation is dependent not only on hydrogen content, but also on geometric constraints or …

The higher-order asymptotic crack-tip fields are considered for a mode-I crack in a power-
law creeping material under the plane strain conditions. Based on the three-term solution of …

In this work, an extended finite element based fully implicit algorithm is proposed to predict
the creep deformation and creep crack growth in elasto-plastic-creeping solids. The effect of …