Journal of Nondestructive Evaluation

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Ultrasonic Testing of Corrosion in Aircraft Rivet Using Spiking Neural Network
Journal of Nondestructive Evaluation - Tập 42 - Trang 1-11 - 2023
Minhhuy Le, Jinyi Lee
This paper proposes a nondestructive testing (NDT) method for the inspection of corrosion in rivets used in an aircraft. The NDT system uses an ultrasonic sensor coupling with a membrane that allows the ultrasonic wave propagates through to the inspecting rivet. The measured signal is then analyzed by a spiking neural network (SNN), a neural network that mimics the biological neurons for efficient...... hiện toàn bộ
Ultrasonic wave propagation in temperature gradients
Journal of Nondestructive Evaluation - Tập 6 - Trang 147-157 - 1987
John A. Johnson, Nancy M. Carlson, Layman A. Lott
Ultrasonic methods are being developed for sensing and control of high temperature material processes such as welding and solidification. One of the problems in these methods is the distortion of the sound field caused by the change in material properties due to temperature gradients. This paper describes a ray-tracing method for calculating the effects of temperature on ultrasonic propagation in ...... hiện toàn bộ
Laser Ultrasonics: Simultaneous Generation by Means of Thermoelastic Expansion and Material Ablation
Journal of Nondestructive Evaluation - Tập 18 - Trang 91-98 - 1999
Sandra Nowland Hopko, I. Charles Ume
This paper describes a laser ultrasonic probe capable of generating ultrasound by both thermoelastic expansion and material ablation mechanisms simultaneously. Because bulk wave propagation is centered around a 67° line of sight for thermoelastically generated signals, and near normal (0°) for signals generated by means of ablation, the simultaneous generation by both mechanisms results in a wider...... hiện toàn bộ
Progress and Trends in Non-destructive Testing for Thermal Barrier Coatings Based on Infrared Thermography: A Review
Journal of Nondestructive Evaluation - Tập 41 - Trang 1-26 - 2022
Jianguo Zhu, Zhuangzhuang Mao, Dongliang Wu, Jiangfan Zhou, Dacheng Jiao, Wenxiong Shi, Wenying Zhu, Zhanwei Liu
Thermal barrier coatings (TBCs), as effective thermal protection separating the substrate from high-temperature combustion gases and reducing the substrate temperature, are widely used in aerospace and other fields. During the service cycle of life, surface crack defects, interface disbond defects, and coating thickness changes are the main non-destructive testing (NDT) objects of TBCs. In this pa...... hiện toàn bộ
Debond Identification in GFRP Strengthened RC Beam Using Surface Guided Wave Mode Generated by Angle Beam Transducer
Journal of Nondestructive Evaluation - Tập 42 - Trang 1-17 - 2023
Udita Pant, Sauvik Banerjee
Debonding failure is one of the most common failure modes for Fiber Reinforced Polymer (FRP) strengthened reinforced concrete (RC) structures. Thus, the strengthened structure requires regular inspections using an efficient and field-friendly technique. This paper proposes the use of angle beam (wedge) transducers to identify the debonded zone in a glass fiber reinforced polymer (GRRP) strengthene...... hiện toàn bộ
Towards Automated Tracking of Initiation and Propagation of Cracks in Aluminium Alloy Coupons Using Thermoelastic Stress Analysis
Journal of Nondestructive Evaluation - - 2019
C. A. Middleton, Andre Gaio, Richard Greene, Eann A. Patterson
Detecting Defects in Composites Using Combined Heating/Cooling: Theory and Experiments
Journal of Nondestructive Evaluation - Tập 43 - Trang 1-16 - 2024
A. O. Chulkov, V. P. Vavilov, B. I. Shagdyrov, D. Yu. Kladov, D. Burleigh
A novel active thermal nondestructive testing (TNDT) technique using sequential heating and cooling is proposed. Properly chosen parameters of a heating/cooling technique may result in a sample excess temperature that is close to the sample’s initial temperature, which causes zero excess temperature when hidden defects still produce noticeable temperature signals. In this case, the running tempera...... hiện toàn bộ
Determination of Maximum Accuracy of Concrete Textures as Natural Targets for Movement Tracking Through DIC
Journal of Nondestructive Evaluation - Tập 42 - Trang 1-10 - 2023
B Ferrer, M. B. Tomás, D. Mas
The use of natural targets is one of the obstacles to the extensive use of digital image cross-correlation for measuring movements in civil structures. Long distance measurement through image and without access to the structure itself, brings results in an improvement in accessibility, being the procedure cheaper and safer than common methods that require direct access to the measuring point. One ...... hiện toàn bộ
X-ray Computed Microtomography Characterization of Ti6Al4V/CoCrMo Biomedical Composite Fabricated by Semi-solid Sintering
Journal of Nondestructive Evaluation - Tập 40 - Trang 1-13 - 2021
E. Mihalcea, H. J. Vergara-Hernández, L. Olmos, O. Jimenez, D. Arteaga, J. M. Salgado-López
The semi-solid sintering of a novel Ti6Al4V/CoCrMo biomedical composite was investigated for the first time by semi-in situ X-ray computed microtomography. Composite was fabricated by dry mixing 15 vol% CoCrMo reinforcing particles with Ti6Al4V particles as matrix. The mixture was poured into a 1 mm diameter quartz capillary. 3D images of the same sample were acquired before and after sintering at...... hiện toàn bộ
Manifold Learning Using Linear Local Tangent Space Alignment (LLTSA) Algorithm for Noise Removal in Wavelet Filtered Vibration Signal
Journal of Nondestructive Evaluation - - 2016
Anil Kumar, Rajesh Kumar
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