文献类型：期刊文献

中文题名：高温结构蠕变疲劳寿命设计方法:从材料到结构

英文题名：Creep-fatigue Life Design Methods in High-temperature Structures:From Materials to Components

作者：王润梓[1];廖鼎[2];张显程[1];朱顺鹏[2];涂善东[1];郭素娟[1]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237;[2]电子科技大学系统可靠性与安全性研究中心,成都611731

年份：2021

卷号：57

期号：16

起止页码：66

中文期刊名：机械工程学报

外文期刊名：Journal of Mechanical Engineering

收录：CSTPCD;;EI(收录号：20214711210359);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家自然科学基金(52005185,51725503,11872181);中国博士后科学基金面上(2020M681200);国家重点研发计划(2018YFC1902404)资助项目。

语种：中文

中文关键词：蠕变疲劳;损伤评定;寿命设计;多轴应力;可靠性

外文关键词：creep-fatigue;damage assessment;life design;multiaxial stress;reliability method

摘要：诸多领域中的结构部件长期在高温变载的严苛环境下运行,其服役过程伴随着严重的蠕变疲劳交互作用。面向高温结构长寿命、高可靠服役的迫切需求,蠕变疲劳寿命设计方法日益受到了业界学者们的高度关注。介绍蠕变疲劳交互作用机理,总结复杂蠕变疲劳加载波形下的微观损伤机制。在材料层面,回顾了基于不同理论体系的蠕变疲劳寿命预测方法。在结构层面,重点阐述了多轴应力对蠕变和疲劳损伤的影响并介绍了基于蠕变疲劳损伤交互图的寿命设计方法。此外,介绍从蠕变疲劳裂纹萌生到扩展的蠕变疲劳可靠性分析方法。最后,对本领域今后的发展方向进行了展望。
Structural components used in many fields operate under harsh environment of high temperatures and cyclic loadings, the service process of which is always associated with serious creep-fatigue interactions. With the urgent demands of long life and high reliability of high-temperature structures, the creep-fatigue life design method has been paid more and more attentions from both engineering and academics. The creep-fatigue interaction is firstly introduced, and microscopic damage mechanisms under complex creep-fatigue loading waveforms are subsequently summarized. At the material level, creep-fatigue life prediction models based on different theoretical methods are reviewed. At the structural level, the effect of multiaxial stress on creep and fatigue damage is clarified and the life design method based on creep-fatigue interaction diagram is elaborated. Moreover, the creep-fatigue reliability analysis method ranging from creep-fatigue crack initiation to propagation is reviewed. Finally, further directions on creep-fatigue study are explored and concluded.