船舶焊接结构件的疲劳破坏是结构失效的主要原因之一，对船舶结构的安全性和可靠性具有重要影响。本文介绍船舶焊接结构件的常见失效形式和机理，重点分析船舶焊接结构件的疲劳特性影响因素，包括焊接质量、应力集中等，结合船舶舱室焊接结构的载荷特性，基于Ansys软件进行了焊接结构件的疲劳特性有限元分析。本文研究对于提高船舶焊接结构件的疲劳寿命具有重要意义，为船舶焊接结构件的优化设计提供了一定的参考。
The fatigue failure of ship welded structural parts is one of the main causes of structural failure, which has an important impact on the safety and reliability of ship structures. This paper introduces the common failure forms and mechanisms of ship welded structural parts, focuses on the factors influencing the fatigue characteristics of ship welded structural parts, including welding quality, stress concentration, etc., and combines the load characteristics of ship cabin welding structures to analyze the fatigue characteristics of welded structural parts based on Ansys software. The research in this paper is of great significance for improving the fatigue life of ship welded structural parts, and also provides a certain reference for the optimal design of ship welded structural parts.
2023,45(17): 186-189 收稿日期：2023-05-16
DOI：10.3404/j.issn.1672-7649.2023.17.038
分类号：U657.58
基金项目：江苏省南通市科技项目(JC12022094)；南通科技项目（JC12022094）
作者简介：周海波(1984-),女,硕士,讲师,研究方向为船舶结构物及焊接技术
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