高温构件延寿相关的若干力学原则

Some Mechanics Principles for Life Extension of Components at Elevated Temperature

从连续损伤力学的观点出发，试图演绎高温构件延寿的力学原则．采用损伤耦合的有限单元法，分析了典型高温构件的损伤规律，为工厂延寿和维修规划提供科学的决策依据．

The object of this paper is to develop some mechanics principles from viewpoint of creep damage. These principles are for life extension of high temperature. Some typical components are analyzed by the damage coupled finite element method. In terms of the damage distribution or life exhaustion of the components, some principles that provide a basis for maintenance strategy and life extension are proposed.