某船支柱垫板与甲板连接焊缝产生裂纹的原因分析

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摘    要：本文对某型船甲板支柱垫板与甲板焊缝开裂现象，从焊接接头破坏机理进行计算分析，确定其开裂原因并提出修复方案及优化意见，对类似工程施工具有借鉴作用。

关键词：疲劳断裂；焊接接头；焊缝缺陷；性能评估

中图分类号：U671.8                                  文献标识码：A

Analysis of the Weld Cracks in the Connection between

Support Plant and  Deck of a Ship

ZHU Jiawei

（ Third Military Representative Office of Navy in Guangzhou，  Guangzhou 511462 ）

Abstract： In this paper，the cracking phenomenon of the weld between the strut pad and the deck of a certain type of ship is used.The failure mechanism of welded joints is calculated and analyzed， which determines the cause of cracking and proposes the repair plans and optimization suggestions. It has guiding significance and reference for the construction of similar projects.

Key words： fatigue breakage;  weld joints;  weld defects;  performance evaluation

1     前言

某型船在使用过程中出现甲板支柱垫板与甲板连接焊缝开裂现象，对船舶使用带来较大的安全隐患。（剩余4156字）