RESEARCH ON THE PARTIAL SAFETY FACTORS OF THE DEFECT ASSESSMENT
(0) Two sets of PSFs are recommended by API579 and BS7910 are widely used all over the world. However the PSFs recommended by GB/T19624-2004, which is national standard of the defect assessment procedure of China, are still based on the PD6493, the pre-edition of BS7910.So it is urgent to establish a new set of PSFs fitting for China. With this intention, the derivation of the two sets of PSFs given by API579 and BS7910 is discussed in this paper, and the PSFs are given by the first order second moment (FOSM) method. A new set of PSFs is given by an example, which was used to be compared with the PSFs provided by the API579 and BS7910, respectively. Based on the research, the PSFs given by API579 is more conservative than these of BS7910 when the COV is low, while it is reverse when the COV is high, what’s more the PSFs given by this article is creditable from the compare. The Partial safety factors (PSFs) is one of the most effective methods for dealing with the uncertainty of parameters in the assessment of structural integrity. Recently years, there are great progresses in the structural integrity assessment including PSFs, and it comes into being two sets of PSFs: API579 and BS7910, which are now widely used all over the world. GB/T19624-2004, which is national standard of the defect assessment procedure of China, are still based on the PD6493, the pre-edition of BS7910. So it is urgent to establish a new set of PSFs based on the actuality of China.
Zhi-cheng WANG Jian-ping ZHAO
Nanjing University of Technology, No.5 XinMoFan Road, Nanjing, 210009.
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）