Results 11 to 20 of about 34,542 (304)
Applied Sciences, 2020 The objective of this study is to compare the performance of different ultrasonic non-destructive testing (NDT) techniques for bonding quality evaluation.
Bengisu Yilmaz +3 more
doaj +1 more source
A Feasibility Study for a Nonlinear Guided Wave Mixing Technique
Applied Sciences, 2021 Ultrasonic non-destructive testing is an effective means of examining objects without destroying them. Among such testing, ultrasonic nonlinear evaluation is used to detect micro-damage, such as corrosion or plastic deformation.
Junpil Park, Jeongseok Choi, Jaesun Lee
doaj +1 more source
Temperature Effects on Nonlinear Ultrasonic Guided Waves
Materials, 2023 Nonlinear ultrasonic guided waves have attracted increasing attention in the field of structural health monitoring due to their high sensitivity and long detection distance. In practical applications, the temperature of the tested structure will inevitably change, so it is essential to evaluate the effects of temperature on nonlinear ultrasonic guided ...
Xiaochuan Niu +4 more
openaire +2 more sources
Predicting bone strength with ultrasonic guided waves [PDF]
Scientific Reports, 2017 AbstractRecent bone quantitative ultrasound approaches exploit the multimode waveguide response of long bones for assessing properties such as cortical thickness and stiffness. Clinical applications remain, however, challenging, as the impact of soft tissue on guided waves characteristics is not fully understood yet. In particular, it must be clarified
Bochud, Nicolas +3 more
openaire +3 more sources
Experimental and numerical evaluation on debonding of fully grouted rockbolt under pull-out loading
International Journal of Coal Science & Technology, 2022 The axial loading in rockbolts changes due to stress redistribution and rheology in the country rock mass. Such a change may lead to debonding at rockbolt to grout interface or rupture of the rockbolt.
Shuisheng Yu, Wancheng Zhu, Leilei Niu
doaj +1 more source
, 2020 The propagation of ultrasonic guided waves in solids is an important area of scientific inquiry, primarily due to their practical applications for nondestructive characterization of materials, such as nondestructive inspection, quality assurance testing, structural health monitoring, and providing a material state awareness.
openaire +2 more sources
Ultrasonic guided waves in elliptical annular cylinders [PDF]
The Journal of the Acoustical Society of America, 2015 This paper studies the influence of cross-section ovalness or ellipticity on lower order axisymmetric guided wave modes in thin pipes. The second longitudinal mode L(0,2) and the fundamental torsional mode T(0,1) are studied, as these are of interest to current pipe inspection.
Prabhu, Rajagopal +1 more
openaire +2 more sources
High-Frequency Guided Ultrasonic Waves to Monitor Corrosion Thickness Loss [PDF]
, 2016 Corrosion due to adverse environmental conditions can occur for a range of industrial structures, e.g., ships and offshore oil platforms. Pitting corrosion and generalized corrosion can lead to the reduction of the strength and thus degradation of the ...
Bernhard, F, Fromme, P, Masserey, B
core +3 more sources
Large Area Detection of Microstructural Defects with Multi-Mode Ultrasonic Signals
Applied Sciences, 2022 Cyclic loading or other stresses can lead to development of cracks and crack growth in mechanical structures, leading to eventual failure. While ultrasound imaging can be used for non-destructive testing of such structures, conventional ultrasound ...
Taeho Ju, Alp T. Findikoglu
doaj +1 more source
Frequency-sweep examination for wave mode identification in multimodal ultrasonic guided wave signal [PDF]
, 2014 This article has been made available through the Brunel Open Access Publishing Fund.Ultrasonic guided waves can be used to assess and monitor long elements of a structure from a single position.
Balachandran, W +4 more
core +1 more source