THE POTENTIAL FOR NON-CONSERVATIVE RESULTS FROM THE PROBABILISTIC FRACTURE MECHANICS ANALYSES IS ASSESSED BASED ON THE COLLECTED OBSERVATION OF FATIGUE CRACKS IN OFFSHORE STEEL STRUCTURES

被引：0
|
作者：
Vardal, Ole Tom [1 ]
机构：
[1] AHPA AS, Loddefjord, Norway
来源：
PROCEEDINGS OF THE ASME 36TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2017, VOL 9 | 2017年
关键词：
D O I：
暂无
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
In structural integrity management, it is essential to know the fatigue crack growth potential. The lessons learned from use of refined fatigue analyses, fracture mechanics and probabilistic methods for platforms in-service are presented. For ageing offshore units of semi-submersible design, the inspection history of more than 20 000 NDT inspections and detection of close to 1000 fatigue cracks, are used in this study. These experience data are used to assess the potential for Non-conservative estimate for the fatigue crack growth potential.
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页数：10
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