Results 1 to 10 of about 41,751 (166)

Engineering-Oriented Ultrasonic Decoding: An End-to-End Deep Learning Framework for Metal Grain Size Distribution Characterization [PDF]

Sensors
Grain size is critical for metallic material performance, yet conventional ultrasonic methods rely on strong model assumptions and exhibit limited adaptability. We propose a deep learning architecture that uses multimodal ultrasonic features with spatial
Le Dai, Shiyuan Zhou, Yuhan Cheng, Lin Wang, Yuxuan Zhang, Heng Zhi   +5 more
doaj   +2 more sources

Extraction of Flaw Signals from the Mixed 1-D Signals by Denoising Autoencoder

Applied Sciences, 2023
Ultrasonic testing (UT) is one of the most popular non-destructive evaluation (NDE) techniques used in many industries to evaluate structural integrity.
Seung-Eun Lee, Jinhyun Park, Hak-Joon Kim, Sung-Jin Song   +3 more
doaj   +1 more source

Multi-mode ultrasonic visualization of porosity in composites using a focused transducer with high sensitivity and near-surface resolution

Composites Part C: Open Access, 2021
Porosity ranging from 0.15% to 2.33% in carbon fiber-reinforced polymer composites (CFRPs) is detected and characterized by multi-mode visualizations including ultrasonic A-Scan, B-Scan, C-Scan and Tomography-Scan using a focused ultrasonic transducer ...
Junwei Shi, Songping Liu, Feifei Liu, Guoli Xun   +3 more
doaj   +1 more source

Detectable Depth of Copper, Steel, and Aluminum Alloy Plates with Pulse-Echo Laser Ultrasonic Propagation Imaging System

Metals, 2021
Pulse-echo laser ultrasonic propagation imaging is a nondestructive testing technique developed for composite materials and aluminum alloys used in aerospace.
Dong-Il Kim, Ku-Rak Jung, Yoon-Soo Jung, Jae-Yeol Kim   +3 more
doaj   +1 more source

Phased Array Ultrasonic Sector Scan Imaging of Helicopter Damper Bolts Based on Vector Coherence Factor

Applied Sciences, 2022
Non-destructive testing of the cracks on the in-service bolt’s shank with size M18 is a challenging technical problem. Due to the weak echo energy of cracks with large buried depths, the conventional phased array ultrasonic sector scan imaging has a low ...
Jingxing Huang, Ming Chen, Qingru Kong, Liangzhong Xiao, Chao Lu, Yao Chen   +5 more
doaj   +1 more source

Analysis of Flaw Detection Sensitivity of Phased Array Ultrasonics in Austenitic Steel Welds According to Inspection Conditions

Sensors, 2021
The anisotropy and inhomogeneity exhibited by austenitic steel in welds poses a challenge to nondestructive testing employing ultrasonic waves, which is predominantly utilized for the inspection of welds in power plants.
YoungLae Kim, Sungjong Cho, Ik Keun Park
doaj   +1 more source

Ultrasonic characterization of defective porcelain tiles

Boletín de la Sociedad Española de Cerámica y Vidrio, 2012
The aim of this work is the optimization of ultrasonic methods in the non-destructive testing of sintered porcelain tiles containing defects. For this reason, a silicon nitride ball, carbon black and PMMA (Polymethylmethacrylate) were imbedded in ...
Eren, E., Kurama, S., Janssen, R.
doaj   +1 more source

Delamination defects testing and evaluation of composite laminates using phased array ultrasonic technique

Cailiao gongcheng, 2021
Composite materials are prone to delamination defects during the preparation process. For the non-destructive testing and evaluation of carbon fiber reinforced polymer (CFRP) delamination defects, a standard specimen with embedded delamination defects ...
CAO Hong-yi, MA Meng-yuan, DING Guo-qiang, JIANG Ming-shun, SUN Lin, ZHANG Lei, JIA Lei, TIAN Ai-qin, LIANG Jian-ying   +8 more
doaj   +1 more source

Automated Multi-NDT Method

e-Journal of Nondestructive Testing, 2023
This paper deals with the operating principle of a multi-NDT test bench aimed at automatically test wind turbine blade sections. This bench uses two NDT methods, infrared thermography (IRT) which is a global method and phased array ultrasonic testing ...
Jules Recolin, Oriane Fedrigo, Romain Hodé, Guillaume Pors   +3 more
doaj   +1 more source

Accuracy Assessment of Ultrasonic C-scan and X-ray Radiography Methods for Impact Damage Detection in Glass Fiber Reinforced Polyester Composites [PDF]

Journal of Applied and Computational Mechanics, 2019
The present study introduces two quantitative parameters to compare the accuracy of ultrasonic C-scan testing and X-ray radiography methods in the damaged area detection under low-velocity impact in polymer-based composites.
Seyyed Abbas Arhamnamazi, Nasrollah Bani Mostafa Arab, Amir Refahi Oskouei, Francesco Aymerich   +3 more
doaj   +1 more source