IMECH-IR  > 力学所知识产出(1956-2008)
焊接接头热影响区的海水腐蚀疲劳裂纹扩展速率
薛以年; 徐纪林; 李禾
Source Publication实验力学
1990
Volume5Issue:4Pages:396-402
ISSN1001-4888
Abstract本文采用T型板状焊接接头试件承受弯曲循环载荷进行空气中和海水自由腐蚀条件下的疲劳裂纹扩展试验(海水中试验条件为R=0-0.1,加载频率0.2Hz,海水温度20℃±1℃),得到了海上平台钢E36-Z35焊接接头热影响区在空气中和海水中裂纹扩展速率da/dN~AK曲线和Paris公式中相应的C和m值,并进行了讨论. 应用本文得到的试验数据,用断裂力学方法对板状焊接接头在空气中和海水中自由腐蚀条件下的疲劳裂纹扩展寿命进行了估算,结果表明,在适当考虑裂纹起始寿命的情况下,用断裂力学方法估算的疲劳裂纹扩展寿命与试验结果相当符合.文中还讨论了初始裂纹尺寸的选取对估算裂纹扩展寿命的影响.
Keyword焊接接头 海水腐蚀疲劳 疲劳裂纹扩展速率
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/36378
Collection力学所知识产出(1956-2008)
Corresponding Author薛以年
Recommended Citation
GB/T 7714
薛以年,徐纪林,李禾. 焊接接头热影响区的海水腐蚀疲劳裂纹扩展速率[J]. 实验力学,1990,5,4,:396-402.
APA 薛以年,徐纪林,&李禾.(1990).焊接接头热影响区的海水腐蚀疲劳裂纹扩展速率.实验力学,5(4),396-402.
MLA 薛以年,et al."焊接接头热影响区的海水腐蚀疲劳裂纹扩展速率".实验力学 5.4(1990):396-402.
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