A Novel Engineering Evaluation Method for Pressure Piping Containing Circumferential Defects. (2015)

• Record Type: Journal Article
• Authors: Qi, F.; Liu, C.J.
• Is Part Of: Procedia engineering. Volume 130(2015)
• Page Start: 1719
• Page End: 1729
• Publication Date: 2015
• Subjects: Simplified factor method -- Safety assessment -- Pressure piping -- Circumferential surface defect; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.12.197
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Safety evaluation for in-service pressure piping containing defects plays an important role in ensuring safety production. Based on Central Electricity Generating Board ( CEGB ) Assessment of the Integrity of Structures Containing Defects ( R6 ) revision 4 failure assessment diagram (FAD), a novel safety assessment method, named Q factor method, is presented for pressure piping containing circumferential surface defects through analysis and simplified in this paper. The Q factor method is simple and efficient, established and given in a more acceptable form in engineering application, and suitable for the safety assessment of defective piping of different materials, without complex fracture or limit load analysis. Besides, the nature of the Q factor approach is consistent with the FAD method, so its validation isn't mentioned in this paper.