随机变幅荷载作用下焊接节点海水腐蚀疲劳裂纹扩展试验

IMECH-IR > 力学所知识产出(1956-2008)

	随机变幅荷载作用下焊接节点海水腐蚀疲劳裂纹扩展试验
	徐纪林; 薛以年; 李禾
Source Publication	钢结构
	1993
Issue	4 Pages:31-35
ISSN	1007-9963
Abstract	本工作采用国产海上平台用钢的T型和十字形板状焊接节点试件,模拟导管架臂节点的弯曲受力状态,在随机变幅荷载下进行了海水腐蚀疲劳裂纹扩展试验,分别测得在海水自由腐蚀和阴极保护条件下的(~—da/dN)-AK~(NM)关系曲线。对于十字型焊接节点试件,根据试验测得的裂纹扩展速率曲线,用断裂力学方法对其海水腐蚀疲劳裂纹扩展寿命(有阴极保护)进行了估算,估算得到的裂纹扩展寿命曲线与试验数据,以及用线性累积损伤理论估算的寿命曲线,进行了分析比较和讨论。
Keyword	随机变幅荷载焊接节点海水腐蚀疲劳裂纹扩展
Language	中文
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/35798
Collection	力学所知识产出(1956-2008)
Corresponding Author	徐纪林
Recommended Citation GB/T 7714	徐纪林,薛以年,李禾. 随机变幅荷载作用下焊接节点海水腐蚀疲劳裂纹扩展试验[J]. 钢结构,1993,4,:31-35.
APA	徐纪林,薛以年,&李禾.(1993).随机变幅荷载作用下焊接节点海水腐蚀疲劳裂纹扩展试验.钢结构(4),31-35.
MLA	徐纪林,et al."随机变幅荷载作用下焊接节点海水腐蚀疲劳裂纹扩展试验".钢结构 .4(1993):31-35.

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