Results 81 to 90 of about 98,820 (198)

Study on Waves Causing Unwanted Heat Spots in Ultrasound-Excited Thermography and Its Suppression Method

open access: yesProceedings
Heat spots caused by standing waves in an inspected object can pose practical challenges in nondestructive inspection using ultrasonic excitation thermography.
Masashi Ishikawa   +3 more
doaj   +1 more source

Nondestructive characterization of the elastic properties of orthotropic composites with ultrasound [PDF]

open access: yes, 2011
Due to the increasing use of composite materials in critical applications demanding light weight to high strength ratio, reliable evaluation tools are necessary.
Degrieck, Joris   +5 more
core  

Lamb Wave Interaction with Adhesively Bonded Stiffeners and Disbonds Using 3D Vibrometry

open access: yesApplied Sciences, 2016
There are many advantages to adhesively bonding stiffeners onto aircraft structures rather than using traditional mechanical fastening methods. However there is a lack of confidence of the structural integrity of adhesively bonded joints over time ...
Ryan Marks   +4 more
doaj   +1 more source

Damage identification in welded structures using symmetric excitation of Lamb waves

open access: yesAdvances in Mechanical Engineering, 2018
Damage monitoring systems based on Lamb wave health monitoring technology have attracted considerable attention for scientific research and industrial applications.
Jian He   +3 more
doaj   +1 more source

Experimental and numerical polar scans of several anisotropic materials using pulsed and harmonic ultrasonic beams [PDF]

open access: yes, 2011
Ultrasonic non-destructive testing is a well known technique in present days, in which the C-scan is the most wide spread. Though, because of the inherent limitations of most methods to quantitatively characterize (damaged) composite materials, the quest
De Baere, Ives   +6 more
core  

STATUS REPORT ON LAMB WAVES [PDF]

open access: yes, 1962
Theoretical and experimental aspects of Lamb waves are considered. These are described as body waves, or modes, which travel throughout an entire plate and are radiated from both surfaces, so that it is possible to detect Lamb waves when the receiver and sender are on opposite sides of the plate.
openaire   +2 more sources

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