... crack detection method in the steel–titanium composite pipe is investigated analytically and experimentally by using interface wave. The interface wave mode in steel–titanium composite pipe is first identified and presented by theoretical analyses of dispersion curves and wave structures. The selection...

... automatic optical inspection crack detection design engineering finite element analysis gradient methods nuclear power stations thermal stress cracking thickness measurement walls thermal fatigue thermal stress crack propagation crack network crack arrest mixing tee Stress...

... of the pipe are necessary. dented pipe integrity assessment variability strain stress FEA probabilistic analysis condition monitoring crack detection fracture mechanics Monte Carlo methods pipelines regression analysis risk management statistical distributions stress-strain...

... in these codes by combining multiple flaws into one flaw is overly conservative in most cases. 09 11 2009 20 04 2010 14 10 2010 14 10 2010 crack detection inspection nuclear power stations pipes stainless steel stress analysis stress corrosion cracking multiple flaws...

... will be made. These observations will add insight into the conservatism of using an idealized flaw shape assumption. 19 11 2008 28 05 2009 05 01 2010 05 01 2010 crack detection finite element analysis stress corrosion cracking surface cracks Rudland , D. L...

... by SIF. Accordingly, a modified combination rule for collinear cracks of S / a = 3.0 is proposed to exclude the nonconservativeness, while the current alignment rule for offset parallel cracks of H / a = 2.0 is still practicable in terms of the proposed criterion. crack detection crack-edge stress...

... the experimental data are not based on the moment of general yielding at the ligament but maximum moment. 01 05 2008 27 01 2009 15 05 2009 crack detection failure analysis pipes pressure vessels There are numerous instances in which multiple cracklike flaws occur in vessels...

... to reach the critical size is also a difficult problem, taking into consideration temporal and locational variations of the stress, strain, temperature, and the other environments. Therefore, periodic nondestructive evaluation (NDE) is imperative for the safe operation of various plants. crack...

... for a defect-free tube is compared, followed by the simulation of a tube with two pits and comparison with experimental measurements. 24 10 2006 20 07 2007 10 09 2008 ageing boilers condition monitoring corrosion crack detection design of experiments failure analysis finite...

...-plastic J . 29 08 2006 22 05 2007 22 08 2008 bending crack detection integral equations pipes circumferential through-wall cracked pipe combined tension and bending crack opening displacement J testing plastic η-factor In fracture toughness testing...

... surface crack. The validity of the method was numerically confirmed by carrying out the evaluation based on the result obtained by finite element analysis. 17 08 2004 24 11 2006 crack detection plates (structures) surface cracks electric sensing devices probes finite element...

... applications. Two examples of such standards are API 579 ( 1 ) and BS 7910 ( 2 ). Both these standards provide methods to assess the components containing cracks and local thin areas (LTA). crack detection failure analysis flaw detection fracture mechanical...

... kinds of cracks initiated in key structural components of this huge engineering system are reported more frequently nowadays. This makes the crack detection in a structural component become a very important issue in the maintenance procedure of a nuclear power plant. In practice, when a crack is found...

... current. 14 02 2006 28 05 2006 surface cracks crack detection nondestructive testing finite element analysis electric potential probes Quantitative nondestructive evaluation (NDE) of cracks is of great practical importance for assessing the reliability of structural...

... stresses crack detection ultrasonic inspection closed crack scattering wave signal enhancement thermal stress Usually, nondestructive evaluation (NDE) of cracks is carried out when the structural components are not in operation, and the cracks are required to be detected and evaluated...

.... 25 01 2005 31 01 2005 acoustic microscopy crack detection surface cracks ceramics alumina pressure vessels gas lasers scanning electron microscopy optical microscopy microcracks Already since the early 1960s ceramic has been proposed for naval applications. High...

... (1) statically loaded with oil, (2) statically loaded with nitrogen, and (3) dynamically loaded with gaseous detonations traveling at 2.4 km/s. The tubes were also instrumented with pressure transducers, crack detection gages, and strain gages. The experiments were controlled so that comparisons...

... through-wall cracks including the effect from the tube support plates. Different values of support spacing are considered. Based on these solutions, the assessment of a typical steam generator tube is demonstrated. 22 July 2001 08 November 2001 30 July 2002 31 01 2003 crack...

... stress. All the da / dN - Δ K curves at different temperatures were collapsed on a single curve. Crazing was found to be the dominant fatigue mechanism, especially at high temperature, while shear yielding was the dominant mechanism at low temperatures. fatigue cracks fatigue testing crack detection...

...–27, 2000, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS . Manuscript received by the PVP Division, August 3, 2000; revised manuscript received December 18, 2001. Associate Editor: S. Rahman. 23 July 2000 03 August 2000 18 December 2001 08 11 2002 crack detection...