Results 21 to 30 of about 8,799 (301)
Modeling the Effect of Anisotropy in Ultrasonic-Guided Wave Tomography [PDF]
Most of the existing ultrasonic-guided wave tomography approaches to map structural changes in plate-like waveguides are based on the assumption of an isotropic material model. However, there are many other engineering applications that are made of anisotropic materials and structures.
Madis Ratassepp +3 more
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On the Piezoelectric Detection of Guided Ultrasonic Waves [PDF]
In order to quantify the wave motion of guided ultrasonic waves, the characteristics of piezoelectric detectors, or ultrasonic transducers and acoustic emission sensors, have been evaluated systematically. Such guided waves are widely used in structural health monitoring and nondestructive evaluation, but methods of calibrating piezoelectric detectors ...
openaire +4 more sources
Shear-horizontal guided wave tomography [PDF]
The petrochemical industry’s pipe-network is increasingly suffering from corrosion-induced shutdowns and thus a quantitative measurement approach is vital for making adequate service-life predictions and to guarantee safety. At pipe-supports, access is
Zimmermann, Andreas Armin Ernst
core +1 more source
Guided Wave and Damage Detection in Composite Laminates Using Different Fiber Optic Sensors
Guided wave detection using different fiber optic sensors and their applications in damage detection for composite laminates were systematically investigated and compared in this paper.
Fucai Li +3 more
doaj +1 more source
In a low-frequency ultrasonic guided wave dual-probe flaw inspection of a square steel bar with a finite length boundary, the flaw reflected pulse wave cannot be identified using conventional time monitoring when the flaw is located near the reflection ...
Lei Zhang +3 more
doaj +1 more source
Ultrasonic metal sheet thickness measurement without prior wave speed calibration [PDF]
Conventional ultrasonic mensuration of sample thickness from one side only requires the bulk wave reverberation time and a calibration speed. This speed changes with temperature, stress, and microstructure, limiting thickness measurement accuracy ...
Dixon, S. +4 more
core +1 more source
The market for process instruments generally requires low cost devices that are robust, small in size, portable, and usable in-plant. Ultrasonic torsional guided wave sensors have received much attention by researchers for measurement of viscosity and/or
Amir Rabani
doaj +1 more source
On the scattering of longitudinal elastic waves from axisymmetric defects in coated pipes [PDF]
This is the post-print version of the final paper published in Journal of Sound and Vibration. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Mudge, P, Zlatev, Z, Kirby, R
core +1 more source
On the scattering of torsional elastic waves from axisymmetric defects in coated pipes [PDF]
This is the post-print version of the Article - Copyright @ 2012 ElsevierLong range ultrasonic testing is now a well established method for examining in-service degradation in pipelines.
Mudge, P, Zlatev, Z, Kirby, R
core +1 more source
Signal Enhancement Technology Based on Ultrasonic Guided Wave Rail Bottom Crack Detection
[Objective] During the propagation of guided waves in rails, there are problems of poor anti-interference ability and severe signal attenuation, which hinder the identification of rail bottom cracks.
HE Jiping +7 more
doaj +1 more source

