Review for Research of Fatigue Life Prediction of Welded Structures under Complex Loads and Extreme Environments

被引：0

作者：

Dong Z. ^{[1
]}

Wang C. ^{[1
]}

Li C. ^{[1
]}

Li J. ^{[2
]}

Zhao Y. ^{[2
]}

Li W. ^{[2
]}

Xu A. ^{[2
]}

机构：

[1] National Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin

[2] Shanghai Spaceflight Precision Machinery Institute, Shanghai

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2024年 / 35卷 / 05期

关键词：

complex load; extreme environment; influencing factor; life prediction model; welded structure;

D O I：

10.3969/j.issn.1004-132X.2024.05.008

中图分类号：

学科分类号：

摘要：

The welded joints were susceptible to defects and stress concentration, rendering them vulnerable areas for fatigue crack initiation and propagation under fatigue loads. In comparison to homogeneous materials, the microstructure and stress localization in each of regions for the joints further complicated the fatigue issue in welded structures. Unlike ideal experimental conditions, the actual service environments of welded structures were intricate, it was necessity to consider the coupling characteristics between environmental factors and welded structures when predicting welded structure fatigue life. Therefore, the internal factors influencing welded structures were summarized and analyzed while reviewing existing life prediction models from perspectives encompassing complex loads and extreme service environment. Combining the latest research progresses, the recommendations were proposed to enhance fatigue life assessment methods for the welded structures. © 2024 Chinese Mechanical Engineering Society. All rights reserved.

引用

页码：829 / 839

页数：10

共 48 条

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