NDLI: Research on Safety Assessment Method for Pressure Pipe With Incomplete Welding Defects Under Complicated Loadings

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Jin, Zhijiang Wan, Xianping Jiang, Chenghang
Copyright Year	2010
Abstract	Since most pressure pipe materials have good toughness, the failure mode of pipe is usually the plastic failure controlled by limit load. The incomplete welding defect is very common in the pipe, and its existence will reduce the load-carrying capacity of pipes. The pipe with incomplete welding defects can be continued using only after passing the appropriate safety assessment, so the research on safety assessment procedure for pressure pipe with incomplete welding defects under combined bending, torsion and internal pressure loadings has a great theoretical and practical engineering value. By using theoretical analyzing method of plastic limit load, the plastic limit load of pressure pipe with different defect size or pipe diameter ratio are calculated in this paper, then safety assessment curved surface and its express equation are obtained by fitting calculation data. Finally a safety assessment procedure is developed for pressure pipes under combined bending, torsion and internal pressure loadings according to the curved surface.
Sponsorship	Pressure Vessels and Piping Division
Starting Page	799
Ending Page	806
Page Count	8
File Format	PDF
ISBN	9780791849224
DOI	10.1115/PVP2010-25543
e-ISBN	9780791838785
Volume Number	ASME 2010 Pressure Vessels and Piping Conference: Volume 3
Conference Proceedings	ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
Language	English
Publisher Date	2010-07-18
Publisher Place	Bellevue, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Load bearing capacity Fittings Welding Pressure pipes Safety Pipes Pressure Torsion Stress Failure Failure mechanisms Fracture toughness
Content Type	Text
Resource Type	Article

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