...Kunio Hasegawa; Bohumir Strnadel; Vratislav Mareš; David Dvořák; Saburo Usami Fatigue crack growth thresholds Δ K th for metals are provided in many fitness-for-service codes. However, fatigue crack growth thresholds at negative stress ratios are not consistently defined. There are two forms...

...Cesar Levy; Mordechai Perl; Qin Ma The Fitness-for-Service (FFS) approach requires the evaluation of the mutual impact of nonaligned, multiple cracks on each other. As such, initially one must resolve whether existing, nonaligned, parallel cracks in the structure should be treated as merged...

... multi-axial loads locally wall-thinned pipe fitness-for-service 26 02 2016 23 05 2016 Contributed by the Pressure Vessel and Piping Division of ASME for publication in the J OURNAL OF P RESSURE V ESSEL T ECHNOLOGY . Manuscript received February 26, 2016; final manuscript...

... estimation method provided in codes such as ASME Boiler and Pressure Vessel Code Section XI or JSME Rules on Fitness-for-Service for Nuclear Power Plants can be applied to evaluate the structural integrity of the cracked pipe. In the current codes, the failure estimation method for circumferentially cracked...

... February 27, 2014. Assoc. Editor: Xian-Kui Zhu. 01 05 2013 12 12 2013 When a crack-like-flaw is detected in piping during in-service inspection, the limit load criterion given in the codes such as JSME Rules on Fitness-for-Service for Nuclear Power Plants or ASME Boiler and Pressure...

... been provided in fitness-for-service codes and fracture mechanics handbooks [ 1–4 , 18 ], for third-order polynomial stress distribution and for important crack shapes and structural geometries. Therefore, using the influence coefficients G 0 A to G 3 A and G 0 B to G 3 B...

... on Fitness-for-Service for Nuclear Power Plants ,” The Japan Society of Mechanical Engineers, JSME S NA1-2008. [4] AFCEN , 2005 , “ Rules for In-service Inspection of Nuclear Power Plant Components ,” AFCEN, RSE-M Code. [5] Li , Y. , Hasegawa , K. , Ida , W. , Hoang , P. H...

... to the practice of the French fitness-for-service code RSE-M. For case where torsion moment is larger or dominant, Eq. (11) can be applied. It can be used for entire range of torsion moments, including the case for the internal pressure. To predict the plastic collapse of a cracked pipe, the collapse moment...

...P. Tantichattanont; S. M. R. Adluri; R. Seshadri Thermal hot spots and corrosion damage are typical of damages occurring in pressure vessels and piping. Structural integrity of such components needs to be evaluated periodically to determine “fitness-for-service” (FFS) of the components...

... issues related to the finite element analyses such as temporal convergence, mesh size effect, and the determination of critical failure parameters are detailed. The HFEM is then applied to predict the failure pressure for use in a fitness-for-service condition monitoring assessment of one removed steam...