...; published online February 21, 2019. Assoc. Editor: Oreste S. Bursi. 16 10 2018 15 01 2019 guided wave nondestructive testing dispersion compensation mode separation The ultrasonic guided wave technique [ 1 – 3 ] has been widely applied to the inspection of pipelines because...

... of applying appropriate nondestructive testing methods and microscopic examination of sectioned mockup specimens along with helium leak sniffer testing assures that tube-to-tubesheet connections will be tight and strong enough for the service of the exchanger. References [1] The ASME Boiler...

...Jinyang Zheng; Jianfeng Shi; Weican Guo Polyethylene (PE) pipes are widely used in transporting natural gas since 1960s. However, there are few published literatures on method for safety assessment of PE pipes. This paper introduces recent work in developing ultrasonic nondestructive testing (NDT...

... nondestructive testing nuclear power stations There is a growing global interest in the longer term operation (LTO) of the existing fleet of nuclear power plants (NPPs). This requires new and improved approaches to plant-life management as licensees seek to operate beyond the initial license periods...

...-section tensile and fracture specimens, and nondestructive testing. In the subsequent decades, the HSST Program conducted extensive large-scale experiments with intermediate-size vessels (with varying size flaws) pressurized to failure, similar experiments under conditions of thermal shock and even...

.... 07 08 2009 09 03 2010 25 08 2010 25 08 2010 anodes boilers condensers (steam plant) heat exchangers leak detection metallography nondestructive testing pipes quality control radiography rods (structures) sheet materials welds X-ray microscopy tube-to-tube...

... application in nondestructive testing (NDT) of pressure vessel are studied. First in the image fusion, different mode image registration has been done based on feature corners. The corners and curves relative to each corner are extracted using the curvature scale space method. A new shape context descriptor...

... data for an outside diameter circumferential crack 03 07 2006 22 12 2006 17 01 2008 boilers cracks finite element analysis nondestructive testing Alloy 600 steam generator tubing laboratory-degraded tube (LDT) direct current potential drop (DCPD) finite...

... materials nondestructively. However, it is difficult to detect tiny voids by conventional ultrasonic testing. Hence, replication methods ( 1 2 ) and hardness testing and so forth have been utilized to determine the creep damage of the piping. nondestructive testing frequency analysis creep damage...

... has been successfully applied not only to the isolated cracks but also to the multiple cracks ( 3 ). surface cracks crack detection nondestructive testing finite element analysis electric potential probes 14 02 2006 28 05 2006 Johnson , H. H. , 1965...

...) thermal stress cracking nondestructive testing ultrasonic applications stainless steel signal processing thermal stresses crack detection ultrasonic inspection closed crack scattering wave signal enhancement thermal stress Usually, nondestructive evaluation (NDE) of cracks...

... the subject structure is fit-for-service and, if so, the margin of safety can be calculated. 14 09 2005 25 10 2005 structural engineering power plants pressure vessels steam plants remaining life assessment stress analysis nondestructive testing Fracture mechanics approach...

... be determined with an artificial neural network. 02 03 2005 11 04 2005 valves nuclear power stations nondestructive testing acoustic emission testing neural nets failure (mechanical) wear Acoustic Emission (AE) Neural Network (NN) Condition Monitoring Check Valve Degradation...

... devices surface acoustic waves design surface acoustic wave sensors acoustic wave production plates (structures) nondestructive testing guided wave plate magnetostrictive sensor Guided waves are elastic waves in sonic and ultrasonic frequencies that propagate in a bounded medium...

... for different modes, say T ( 0 , 2 ) - F T ( 10 , 2 ) , to get another angular profile. 15 01 2005 14 02 2005 pipes nondestructive testing elastic waves focusing inspection Axisymmetric guided waves can propagate for long distances in pipe with little...

... of displacements. Gray scale represents axisymmetric mode displacement in the longitudinal direction. 14 01 2005 24 01 2005 acoustic wave propagation pipes nondestructive testing finite element analysis echo Since guided waves can propagate over long distances in such large...

... received a post-weld heat-treatment. The two nondestructive test techniques successfully determined both the bulk (thickness averaged) and the surface stress state, due to the highly different penetration of these radiations in metals. In the as-welded tank, both neutrons and x-rays show a stress level...

...Don E. Bray,, Organizer; Corinne Darvennes,, Chair 26 07 2002 publishing societies nondestructive testing Nondestructive evaluation (NDE) techniques offer time-efficient methods for determining properties as well as characterizing defects in materials and structures...

... nondestructive testing Eddy current inspection is commonly used to test the integrity of steam generator tubes as pressure boundaries for the safe operation of nuclear plants. The eddy current signal must be related to the structural integrity of the tubes. There are various methods of characterizing...

... of Residual Stress in Railroad Wheels,” Proc., Practical Application of Residual Stress Technology , Vol. 3, pp. 61–67. Allen, D. R., Cooper, W. H. B., Sayers, C. M., and Silk, M. G., 1982, “The Use of Ultrasonics to Measure Residual Stresses,” Research Technique in Nondestructive Testing , Vol. 6, ed...