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http://dx.doi.org/10.7781/kjoss.2012.24.6.647

An Experimental Study on Failure Behavior of TP316 Stainless Steel Pipe with Local Wall Thinning and Cracking  

Cheung, Jin Hwan (School of Civil and Environmental Engineering, Pusan National University)
Kim, In Tae (School of Civil and Environmental Engineering, Pusan National University)
Choi, Seock Jin (School of Civil and Environmental Engineering, Pusan National University)
Choi, Hyung Suk (Seismic Simulation Test Center, Pusan National University)
Kim, Hee Sung (Division of Architecture and Civil Engineering, Dongseo University)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.6, 2012 , pp. 647-657 More about this Journal
Abstract
Although nuclear power plant piping system is designed conforming to design specifications, the piping systems are deteriorated with increase in service life. In this study, monotonic and cyclic loading tests were carried out on TP316 stainless steel pipe specimens, and the effect of local wall thinning and cracking on failure behavior was investigated. In the tests, 0%, 35% and 75% wall thinning and cracking of initial thickness were artificially introduced to inside elbow and straight pipe specimens, and internal pressures of 20MPa were applied to simulate real operation condition. From the test results, the effect of local wall thinning and cracking on failure mode, ultimate load, number of cycle and strain energy was presented, and maximum bending moment was compared with allowable bending moment calculated by ASME code.
Keywords
stainless steel; elbow; straight pipe; monotonic load; cyclic load; wall thinning; cracking; failure behavior;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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