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Journal articles on the topic 'Ultrasonic Testing (UT)'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Sambhaji, Geetanjali L. "Ultrasonic Testing: A Non-Destructive Testing Method for Aerospace Applications." International Journal for Research in Applied Science and Engineering Technology 13, no. 4 (2025): 823–26. https://doi.org/10.22214/ijraset.2025.68383.

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Ultrasonic Testing (UT) is a widely recognized Non-Destructive Testing (NDT) method used majorly in the aerospace industry for detecting internal flaws, measuring material thickness, and ensures structural integrity. By employing highfrequency sound waves, UT enables precise inspection without damaging the tested component. Techniques such as Pulse-Echo, Phased Array Ultrasonic Testing (PAUT), and Time-of-Flight Diffraction (TOFD) enhance detection accuracy, making UT highly effective in identifying cracks, voids, and delamination’s in aerospace structures. Its ability to check complex geometr

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2

Lee, Seung-Eun, Jinhyun Park, Hak-Joon Kim, and Sung-Jin Song. "Extraction of Flaw Signals from the Mixed 1-D Signals by Denoising Autoencoder." Applied Sciences 13, no. 6 (2023): 3534. http://dx.doi.org/10.3390/app13063534.

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Ultrasonic testing (UT) is one of the most popular non-destructive evaluation (NDE) techniques used in many industries to evaluate structural integrity. The commonly used NDE techniques are basic inspection techniques, such as visual testing (VT), penetration testing (PT), and magnetic testing (MT), and advanced inspection techniques, such as UT, radiography testing (RT), eddy current testing (ECT), and phased array ultrasonic testing (PAUT). Among the numerous advanced techniques, ultrasonic testing (UT) is usually used for the inspection of welds in various industries. However, the applicati

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3

Jamil, Jeffry, Syed Yusainee Syed Yahya, and Rosnah Zakaria. "Multi Display Scan in Detecting Weld Discontinuity of Thick Carbon Steel Plate using Ultrasonic Testing Phased Array (UTPA) with Comparison to Conventional Ultrasonic Testing (UT)." Scientific Research Journal 17, no. 2 (2020): 209. http://dx.doi.org/10.24191/srj.v17i2.8345.

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Non-destructive testing (NDT) is a method of testing and analysis that relies on the application of physical principles to determine the integrity of materials without causing damage. The existence of weld discontinuity can affect the service ability of the structures. Ultrasonic testing Phases Array (UTPA) is advanced ultrasonic testing technology widely practiced in many industries. The multiple ultrasonic elements and electronic time delay will create constructive and destructive interference and steering capability, which could improve detectability compared to a single element of conventi

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Ju, Taeho, and Alp T. Findikoglu. "Ultrasonic Testing of Mechanical Changes in a Water-Filled Pipe with Multi-Mode and Broadband Signals and Two-Level Compensation." Sensors 22, no. 22 (2022): 8647. http://dx.doi.org/10.3390/s22228647.

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Ultrasonic testing (UT) has been widely used for the Nondestructive Evaluation (NDE) of pipes due to its many favorable characteristics. However, one of the main challenges in the general use of UT for real-world pipelines is the sensitivity of this method to environmental and operational condition changes. This paper proposes a new UT method with enhanced compensation for environmental effects and operational condition changes. In particular, the effectiveness of the new method is tested in the presence of temperature variations, and changes in water flow rate inside a stainless-steel pipe. T

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5

Song, Kyung Seok, Sun Young Na, and Jae Yeol Kim. "Internal Defect Inspection of Composite Material Using Non-Contact UT." Advanced Materials Research 123-125 (August 2010): 827–30. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.827.

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The NAUT technique allows non-contact ultrasonic testing in air. If the NAUT technique can be applied, not only ultrasonic testing in air with no couplant would be possible, but also the stable transmission and reception of ultrasonic waves, which would thus enable ultrasonic testing of hot or cold materials, or rough surfaces of specimens that could not be tested with conventional-contact ultrasonic testing techniques. By trying NAUT for CFRP (carbon fiber-reinforced plastic) specimens, the applicability of NAUT in these areas was observed, and the results from the waveforms of parts of the s

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Park, Seong-Hyun, Jung-Yean Hong, Taeho Ha, Sungho Choi, and Kyung-Young Jhang. "Deep Learning-Based Ultrasonic Testing to Evaluate the Porosity of Additively Manufactured Parts with Rough Surfaces." Metals 11, no. 2 (2021): 290. http://dx.doi.org/10.3390/met11020290.

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Ultrasonic testing (UT) has been actively studied to evaluate the porosity of additively manufactured parts. Currently, ultrasonic measurements of as-deposited parts with a rough surface remain problematic because the surface lowers the signal-to-noise ratio (SNR) of ultrasonic signals, which degrades the UT performance. In this study, various deep learning (DL) techniques that can effectively extract the features of defects, even from signals with a low SNR, were applied to UT, and their performance in terms of the porosity evaluation of additively manufactured parts with rough surfaces was i

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Lopez, Ana Beatriz, José Pedro Sousa, João P. M. Pragana, Ivo M. F. Bragança, Telmo G. Santos, and Carlos M. A. Silva. "In Situ Ultrasonic Testing for Wire Arc Additive Manufacturing Applications." Machines 10, no. 11 (2022): 1069. http://dx.doi.org/10.3390/machines10111069.

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In this paper, we present a non-destructive testing (NDT) technique based on in situ detection of defects up to 100 °C by ultrasonic testing (UT) during construction of parts by a metal additive manufacturing technology known as wire arc additive manufacturing (WAAM). The proposed technique makes use of interlayer application of commercial solder flux to serve as coupling medium for in situ inspection using a special-purpose UT probe. The experimental work was carried out in deposited ER5356 aluminum straight walls following a threefold structure. First, characterization tests with geometrical

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8

Fan, Zeng, John Rudlin, Giorgos Asfis, and Hongying Meng. "Convolution of Barker and Golay Codes for Low Voltage Ultrasonic Testing." Technologies 7, no. 4 (2019): 72. http://dx.doi.org/10.3390/technologies7040072.

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Ultrasonic Testing (UT) is one of the most important technologies in Non-Detective Testing (NDT) methods. Recently, Barker code and Golay code pairs as coded excitation signals have been applied in ultrasound imaging system with improved quality. However, the signal-to-noise ratio (SNR) of existing UT system based on Barker code or Golay code can be influenced under high high attenuation materials or noisy conditions. In this paper, we apply the convolution of Barker and Golay codes as coded excitation signals for low voltage UT devices that combines the advantages of Barker code and Golay cod

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9

Mikhaylov, I. V., A. N. Razygraev, and N. P. Razygraev. "Ultrasonic testing through a thickened cladding." Дефектоскопия, no. 10 (December 15, 2023): 76–78. http://dx.doi.org/10.31857/s0130308223100093.

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This paper presents the results of studies of the effect of thickened repair anti-corrosion surfacing on pre-operational and in-service ultrasonic testing (UT) of the reactor vessel metal through anti-corrosion cladding in comparison with ultrasonic testing through standard surfacing provided for by the design documentation [1]. The paper estimates the distortion of acoustic fields of transducers of transverse and longitudinal waves and the detectability of defects during ultrasonic testing through cladding of different thicknesses and cladding with an inclined fusion zone from a thickness of

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10

Caballero, Juan-Ignacio, Guillermo Cosarinsky, Jorge Camacho, Ernestina Menasalvas, Consuelo Gonzalo-Martin, and Federico Sket. "A Methodology to Automatically Segment 3D Ultrasonic Data Using X-ray Computed Tomography and a Convolutional Neural Network." Applied Sciences 13, no. 10 (2023): 5933. http://dx.doi.org/10.3390/app13105933.

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Ultrasonic non-destructive testing (UT) is a proficient method for detecting damage in composite materials; however, conventional manual testing procedures are time-consuming and labor-intensive. We propose a semi-automated defect segmentation methodology employing a convolutional neural network (CNN) on 3D ultrasonic data, facilitated by the fusion of X-ray computed tomography (XCT) and Phased-Array Ultrasonic Testing (PAUT) data. This approach offers the ability to develop supervised datasets for cases where UT techniques inadequately assess defects and enables the creation of models with ge

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11

Kim, Jeong Guk, Jong Duk Chung, Joon Hyun Lee, et al. "Damage Characterization of Ceramic Matrix Composites (CMCs) during Tensile Testing." Key Engineering Materials 297-300 (November 2005): 2533–38. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.2533.

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Nondestructive evaluation (NDE) techniques were used for the tensile damage characterization in ceramic matrix composites (CMCs). Ultrasonic testing (UT) and infrared (IR) thermography were employed to assess defects and/or damage evolution before and during mechanical testing. Prior to tensile testing, a UT C-scan and a xenon flash method were performed to obtain initial defect information in light of UT C-scans and thermal diffusivity maps, respectively. An IR camera was used for in-situ monitoring of progressive damages. The IR camera measured temperature changes during tensile testing. Thi

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12

Zhang, Lu, Zishi Jiang, Hongyu Li, Yuchun Lu, and Ermao Zhang. "Influence of Stochastic Aggregate on Ultrasound Propagation in Concrete." Journal of Physics: Conference Series 2202, no. 1 (2022): 012022. http://dx.doi.org/10.1088/1742-6596/2202/1/012022.

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Abstract The ultrasonic testing (UT) has been successfully utilized in many civil engineering fields (e.g. steel structures, RC structures, PC structures, highway, and railway) since the UT can provides an efficient and convenient on-site inspection of internal and external defects. However, many influential factors, such as aggregate, grading, mortar and cement porosity, may introduce various uncertainties to the UT measurement in the concrete due to its highly heterogeneities. Herein, the aggregate in concrete is one of the most influential factors of heterogeneities. To understand the influ

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13

Van Deventer, Lourens. "Advancements in Guided Wave UT Equipment regarding Sensitivity—Part 1." Materials Performance 48, no. 2 (2009): 56–58. https://doi.org/10.5006/mp2009_48_2-56.

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Part 1 of this article discusses guided wave ultrasonic testing sensitivity. These have improved dramatically because of recent developments in adjustable spacing transducer modules, improved software, and the use of specialized testing methods. Part 2 (March 2009 MP) will present case histories.

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14

Matalgah, Khaled, Pruthul Kokkada Ravindranath, Daniel Pulipati, and Trevor J. Fleck. "Automated Quantification of Interlaminar Delaminations in Carbon-Fiber-Reinforced Polymers via High-Resolution Ultrasonic Testing." Polymers 15, no. 24 (2023): 4691. http://dx.doi.org/10.3390/polym15244691.

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This article presents a method of ultrasonic testing (UT) that detects and quantifies interlaminar delaminations in CFRP composites with high resolution in terms of both spatial resolution in the planar dimension and depth into the laminate. Unidirectional and woven CFRP laminates were fabricated for this study, with a PTFE film inserted at various depths throughout the laminate to act as intentional crack initiation sites. All samples were mechanically tested via a three-point, end-notched flexure (ENF) test, followed by a quantification of the extent of the induced interlaminar delaminations

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15

Mráz, M. "Nedestruktivní zkoušení trubek pomocí metody LFET, UT a ET / Nondestructive testing of tubes using the LFET, UT and ET methods." Koroze a ochrana materialu 59, no. 3 (2015): 77–80. http://dx.doi.org/10.1515/kom-2015-0018.

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Dlouhodobým cílem programu řízení životnosti tlakových částí kotlů je eliminace poruchových odstávek a bezpečné provozování těchto zařízení. K detekci kritických blokací ohybů trubek odloupnutými částicemi epitaktické vrstvy byla ve spolupráci s EPRI vybrána metoda LFET (Low Frequency Electromagnetic Testing) a pro měření celkové tloušťky oxidické vrstvy metoda UT (Ultrasonic Testing), které nacházejí uplatnění zejména v USA. Ultrazvukový tloušťkoměr je použitelný pouze pro feritické materiály. Upravená metoda vířivých proudů (ET) bude sloužit ke stanovení tloušťky epitaktické vrstvy na austen

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16

Zhang, Hanming, Chunguang Xu, and Dingguo Xiao. "Crack Assessment of Wheel Hubs via an Ultrasonic Transducer and Industrial Robot." Sensors 18, no. 12 (2018): 4336. http://dx.doi.org/10.3390/s18124336.

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Crack assessment when making fitness-for-service decisions requires a thorough examination of crack location and size in critical areas. An ultrasonic transducer is used for such assessments, but traditional methods cannot cope with complex rotators, such as wheel hubs. We present a model of robot-assisted crack growth assessment in wheel hubs. We integrate a six-degrees-of-freedom (DOF) industrial robot and a turntable to form a robot-assisted ultrasonic testing (UT) system that does not use traditional UT equipment. Ultrasonic beams are focused at certain depths appropriate for achieving max

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17

Yao, Fei, and Yimin Cao. "Research on Ultrasonic Testing with Wavelet Packet Analysis for Shotcrete." Materials Evaluation 79, no. 10 (2021): 1005–15. http://dx.doi.org/10.32548/2021.me-04217.

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Shotcrete structures are widely used in tunnel engineering. Quality inspection is difficult, and the traditional ultrasonic testing (UT) method based on first arrival velocity has limitations. In this paper, shotcrete-rock specimens were made in a laboratory and evaluated using UT. Wavelet packet decomposition is introduced for better frequency analysis of the condition evaluation. Two methods, including calculation of the energy eigenvalues and machine learning, are used to describe the contact quality at the interface between the shotcrete and rock. The relative energy eigenvalue increases w

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18

Kim, Yong Sik, Seung Han Yang, Byung Sik Yoon, and Hee Jong Lee. "Comparison between Conventional and Performance Demonstration UT Method by Round Robin Test." Key Engineering Materials 321-323 (October 2006): 1754–57. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1754.

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The results of ultrasonic testing performed during in-service inspection period for main components of nuclear power plant are affected by the performance of each inspector. To enhance the inspection reliability, the more restrictive qualification is required. KEPRI established Korean performance demonstration (KPD) system for the ultrasonic testing personnel, equipment and procedure which applied to the piping examination of nuclear power plant. A round robin test was conducted to evaluate the reliability of examination result by comparing conventional (DAC) UT and performance demonstration (

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19

Zhukov, A. A., and M. V. Vasilchuk. "ULTRASONIC CONTROL OF WALL THICKNESS OF COOLED BLADES OF GAS TURBINE ENGINES." Spravochnik. Inzhenernyi zhurnal, no. 325 (April 2024): 58–65. http://dx.doi.org/10.14489/hb.2024.04.pp.058-065.

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The results of measurements of the wall thickness of the cooled working blades of a gas turbine engine using ultrasonic and visual-optical methods are presented. The reliability of the ultrasonic testing results has been calculated; it has been established that the reliability of measurements performed with the UDT-45 device is higher than with the UT-603 device.

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20

Wang, Jie, Dongxue Han, Liang Peng, Xiuwei Yang, Zhaoqing Meng, and Jin Zhang. "Non-destructive damage evaluation of composites based on X-ray and ultrasonic image fusion." Insight - Non-Destructive Testing and Condition Monitoring 66, no. 9 (2024): 541–47. http://dx.doi.org/10.1784/insi.2024.66.9.541.

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Proper utilisation of non-destructive testing (NDT) methods is crucial for ensuring the engineering safety of composites. Ultrasonic testing (UT) and X-ray computed tomography (CT) are two commonly used NDT methods for inspecting glass fibre-reinforced polymer (GFRP) composites, each with its unique advantages and limitations. In a previous study, the authors found that UT has lower resolution in detecting delamination and inclusion defects compared to X-ray CT, which has a lower contrast. Both methods also lack the ability to perform automated quantitative testing. To overcome these limitatio

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Ranachowski, Zbigniew, Przemysław Ranachowski, Tomasz Dębowski, et al. "Mechanical and Non-Destructive Testing of Plasterboards Subjected to a Hydration Process." Materials 13, no. 10 (2020): 2405. http://dx.doi.org/10.3390/ma13102405.

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The aim of this study was to investigate the effect of plasterboards’ humidity absorption on their performance. Specimens’ hydration procedure consisted of consecutive immersing in water and subsequent drying at room temperature. Such a procedure was performed to increase the content of moisture within the material volume. The microstructural observations of five different plasterboard types were performed through optical and scanning electron microscopy. The deterioration of their properties was evaluated by using a three-point bending test and a subsequent ultrasonic (ultrasound testing (UT)

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22

Haworth, Will. "The Evolution of Weld Inspection: Unlocking the Potential of Phased Array Ultrasonic Testing." Materials Evaluation 82, no. 5 (2024): 32–37. http://dx.doi.org/10.32548/2024.me-04428.

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In the field of nondestructive testing (NDT), phased array ultrasonic testing (PAUT) stands out as a significant advancement, reshaping the way we inspect welds. In this article, we’ll explore the historical progression of weld inspection, from conventional ultrasonic testing (UT) to the rise of PAUT, and the technical aspects and advancements that have positioned PAUT as a game changer, particularly in industry standards set by organizations like the American Welding Society (AWS) and American Society of Mechanical Engineers (ASME). Our journey will include an examination of the core componen

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Zhang, Qian, Jianping Peng, Kang Tian, Ai Wang, Jinlong Li, and Xiaorong Gao. "Advancing Ultrasonic Defect Detection in High-Speed Wheels via UT-YOLO." Sensors 24, no. 5 (2024): 1555. http://dx.doi.org/10.3390/s24051555.

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In the context of defect detection in high-speed railway train wheels, particularly in ultrasonic-testing B-scan images characterized by their small size and complexity, the need for a robust solution is paramount. The proposed algorithm, UT-YOLO, was meticulously designed to address the specific challenges presented by these images. UT-YOLO enhances its learning capacity, accuracy in detecting small targets, and overall processing speed by adopting optimized convolutional layers, a special layer design, and an attention mechanism. This algorithm exhibits superior performance on high-speed rai

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24

Bagyinszki, Gyula, and Enikő Bitay. "Applicability of Procedural Variants in Ultrasonic Testing." Műszaki Tudományos Közlemények 14, no. 1 (2021): 1–9. http://dx.doi.org/10.33894/mtk-2021.14.01.

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Abstract Ultrasonic testing (UT) is essentially the transmission of high-frequency (0.25…20 MHz) sound waves (mechanical vibration and energy) into a material, in order to interact with the macro-structural constituents of the material which reflect and/or weaken it. Ultrasonic testing – as one of the most common nondestructive material testing (NDT) methods – thanks to its many variants, is able to operate in a mobilized and highly automated fashion; it can be performed on most material types; high accuracy and reproducibility can be achieved in error detection, and it is generally enough if

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Rucka, Magdalena, Erwin Wojtczak, and Monika Zielińska. "Integrated Application of GPR and Ultrasonic Testing in the Diagnostics of a Historical Floor." Materials 13, no. 11 (2020): 2547. http://dx.doi.org/10.3390/ma13112547.

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The paper presents the results of integrated ground penetrating radar (GPR) and ultrasonic testing (UT) measurements conducted on a historical floor in St. Nicholas’ Church, Gdańsk, Poland. The described inspection was the first stage of the technical state assessment of the building. The aim of the study was the detection of underfloor air gaps, which were observed in a few trial pits. The condition of the ground under the floor was determined by localizing other inclusions such as rubble, human remains, brick walls and pipes. To identify the phenomenon of electromagnetic and ultrasonic wave

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26

Shah, Jay, Said El-Hawwat, and Hao Wang. "Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical Modeling." Sensors 23, no. 11 (2023): 5131. http://dx.doi.org/10.3390/s23115131.

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The use of guided wave-based Ultrasonic Testing (UT) for monitoring Polyethylene (PE) pipes is mostly restricted to detecting defects in welded zones, despite its diversified success in monitoring metallic pipes. PE’s viscoelastic behavior and semi-crystalline structure make it prone to crack formation under extreme loads and environmental factors, which is a leading cause of pipeline failure. This state-of-the-art study aims to demonstrate the potential of UT for detecting cracks in non-welded regions of natural gas PE pipes. Laboratory experiments were conducted using a UT system consisting

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27

Van Deventer, Lourens. "Advancements in GUL G-3 Guided Wave UT Equipment Regarding Sensitivity—Part 2." Materials Performance 48, no. 3 (2009): 58–61. https://doi.org/10.5006/mp2009_48_3-58.

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Part 1 of this article (February 2009 MP) discussed guided wave ultrasonic testing (GWUT) sensitivity and showed how it has been enhanced by recent technical developments, improved software, and the use of specialized testing methods. Part 2 presents three case histories illustrating the use of GWUT.

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Na, Yiming, Yunze He, Baoyuan Deng, et al. "Advances of Machine Learning in Phased Array Ultrasonic Non-Destructive Testing: A Review." AI 6, no. 6 (2025): 124. https://doi.org/10.3390/ai6060124.

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Recent advancements in machine learning (ML) have led to state-of-the-art performance in various domain-specific tasks, driving increasing interest in its application to non-destructive testing (NDT). Among NDT techniques, phased array ultrasonic testing (PAUT) is an advanced extension of conventional ultrasonic testing (UT). This article provides an overview of recent research advances in ML applied to PAUT, covering key applications such as phased array ultrasonic imaging, defect detection and characterization, and data generation, with a focus on multimodal data processing and multidimensio

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29

Окунев, Denis Okunev, Тульский, Mikhail Tulskiy, Литвинов, and Ivan Litvinov. "Procedure of NDT Instruments Qualification Tests. Classification of Ultrasonic Testing Devices." NDT World 18, no. 4 (2015): 34–37. http://dx.doi.org/10.12737/16158.

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Introduction. Qualification tests are carried out with the aim to understand real possibilities of NDT instruments to detect defects as well as calculate measurement errors at size measurements. Method. Previous experience has shown that it is impossible to obtain defects with given parameters only by changing welding conditions. Defects were made mechanically or with electroerosive method. Size measurements were fulfilled with X-Ray tomograph; its measurement accuracy was confirmed by the results of metallographic study. Results. 18 types of UT instruments have been tested on 5 ty

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Kim, Jeong Guk. "Tensile Damage Characterization in Nicalon Fiber Reinforced Ceramic Composites." Key Engineering Materials 326-328 (December 2006): 1237–42. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1237.

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Tensile failure behavior of ceramic matrix composites (CMCs) was characterized with nondestructive evaluation (NDE) techniques. Prior to the mechanical testing, infrared (IR) thermography was employed to obtain thermal diffusivity maps for CMC specimens. IR thermography also was used for quantitative analyses of the progressive damage and in-situ monitoring of the damage during tensile tests, while ultrasonic (UT) C-scans were used to present defect distributions of the composites. The thermal diffusivity map showed good consistency with ultrasonic C-scan results of CMC specimens. In this inve

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Batov, G. P., S. E. Zharinov, V. S. Chernov, A. E. Yuryev, and D. A. Polozyukov. "THE USE OF PHASED ARRAYS AND THE DIFFRACTION-TIME METHOD FOR QUALITY CONTROL OF ANTICORROSIVE SURFACING INSIDE CYLINDRICAL HOLES (CHANNELS) WITH DIAMETERS FROM 42 TO 440 MM IN FORGINGS." Kontrol'. Diagnostika, no. 313 (July 2024): 38–45. http://dx.doi.org/10.14489/td.2024.07.pp.038-045.

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Ultrasonic Testing (UT) of anticorrosive surfacing for the quality of fusion with the base metal and the presence of subsurface cracks is mandatory for use in nuclear, petrochemical and other industries. However, the control of subsurface cracks in holes with a diameter of 42 mm or more is not provided for in the regulatory documentation. The experience of using the UT of anticorrosive surfacing inside cylindrical holes with a diameter from 42 to 440 mm in the forgings of valve blocks of underwater gas production systems is presented below. At the same time, phased arrays were used to control

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32

Ghosal, Surajit. "AUT of Thick Duplex Piping Hook-Up Joints Offshore." Materials Performance 58, no. 8 (2019): 48–51. https://doi.org/10.5006/mp2019_58_8-48.

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Duplex stainless steel piping 75-mm thick was selected for an offshore platform due to the extremely corrosive nature of well fluid at high temperatures and pressures. All butt weld joints were inspected during inland fabrication, except hook-up joints to be welded offshore. Radioactive isotope of iridium (192Ir) was used and is covered in the article. Due to limitations of conventional ultrasonic testing (UT), an automated UT (AUT) technique was employed as an alternative to radiographic testing on the offshore platform to ensure integrity of hook-up joints after a successful demonstration an

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Behravan, Amir, Thien Q. Tran, Yuhao Li, et al. "Field Inspection of High-Density Polyethylene (HDPE) Storage Tanks Using Infrared Thermography and Ultrasonic Methods." Applied Sciences 13, no. 3 (2023): 1396. http://dx.doi.org/10.3390/app13031396.

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High-density polyethylene (HDPE) is widely used for above-ground storage tanks (ASTs). However, there are currently no guidelines for the non-destructive testing (NDT) and evaluation (NDE) of HDPE ASTs. Moreover, the feasibility, limitations, and challenges of using NDT techniques for the field inspection of HDPE ASTs have not been well established. This study used both infrared thermography (IRT) and ultrasonic testing (UT) for the field inspection of HDPE ASTs. Highlighting the implementation challenges in the field, this study determined that: (1) ambient environmental parameters can affect

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Rawicki, Łukasz, Ryszard Krawczyk, Jacek Słania, Grzegorz Peruń, Grzegorz Golański, and Katarzyna Łuczak. "Analysis of the Suitability of Ultrasonic Testing for Verification of Nonuniform Welded Joints of Austenitic–Ferritic Sheets." Materials 17, no. 17 (2024): 4216. http://dx.doi.org/10.3390/ma17174216.

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The purpose of the presented research was to determine the suitability of using ultrasonic testing (UT) to inspect heterogeneous, from a material point of view, welded joints on the example of the joints of a ferritic steel element with elements made of an austenitic steel. The echo technique with transverse (SEK) and longitudinal wave heads (SEL) addressed this issue. Due to the widespread use of 13CrMo4-5 and X2CrNiMo17-12-2 steel grades in the energy industry, they were selected as the test materials for the study. The objects of the presented research were welded joint specimens with thick

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M K, Faseela. "Non-Destructive Testing in Engineering." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 2193–201. https://doi.org/10.22214/ijraset.2024.65577.

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Non-destructive testing (NDT) methods are a group of tests allowing one to detect external (surface) as well as internal defects of a structure. It is mandatory to test any material prior to taking into use for engineering purpose or other uses; whether it meetsthe laid down requirement as perstandard specification or not to help in financial saving and prevent failure in service. This review article provides the earlier, recent advances and research about Non-Destructive Testing (NDT) such as Visual Inspection (VI), Liquid Penetration Testing (LPT), Magnetic Particle Inspection (MPI), Ultraso

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Чан, Alan Chan, Бабу, Sajeesh Kumar Babu, Чан, and V. Chan. "Productivity and Reliability Study of Non Destructive Testing Techniques for Inspection of Structural Welds in Construction Industry." NDT World 19, no. 3 (2016): 35–39. http://dx.doi.org/10.12737/21156.

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Introduction. The aim of this study is to evaluate the productivity and reliability of non-destructive testing techniques for the inspection of structural welds employed in the Hong Kong construction industry. Method. Manual ultrasonic pulse echo method and semi-automatic ultrasonic techniques using phased array (PAUT) as well as radiographic testing were employed. Five classes of defects were analyzed: lack of penetration, lack of fusion, crack, porosity and slag inclusion. The tests were carried out on the specimen made from structural plate, on which artefacts were inserted on the wel

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Herceg, Arijan, Leon Maglić, Branko Grizelj, and Vlatko Marušić. "Comparison of Ultrasonic Phased Array and Film Radiography in Detection of Artificially Embedded Defects in Welded Plates." Materials 16, no. 9 (2023): 3579. http://dx.doi.org/10.3390/ma16093579.

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Ultrasonic and radiographic testing are generally two basic methods for volumetric (internal) defect detection in non-destructive testing. Since both methods are commonly used for the same thing, the question arises as to whether both are equally capable of detecting some commonly occurring defects in manufacturing. Commonly occurring defects are generally considered to be fusion defects, drilled holes (which act as pores), etc. To prove or disprove the hypothesis that both methods can generally be used to detect these defects, an experiment was conducted using three welded plates with artific

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Katunin, Andrzej, Angelika Wronkowicz-Katunin, and Krzysztof Dragan. "Impact Damage Evaluation in Composite Structures Based on Fusion of Results of Ultrasonic Testing and X-ray Computed Tomography." Sensors 20, no. 7 (2020): 1867. http://dx.doi.org/10.3390/s20071867.

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Barely visible impact damage (BVID) is one of the most dangerous types of structural damage in composites, since in most practical cases the application of advanced non-destructive testing (NDT) methods is required to detect and identify it. Due to its character of propagation, there are minor signs of structural damage on a surface, while the internal damage can be broad and complex both in the point of view of fracture mechanisms and resulting geometry of damage. The most common NDT method applied e.g., in aircraft inspections is ultrasonic testing (UT), which enables effective damage detect

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Ji, W. S., Z. L. Zhou, H. Zhang, and S. Zheng. "Review of ultrasonic testing technology for bonding interfaces of solid rocket motors." Insight - Non-Destructive Testing and Condition Monitoring 63, no. 11 (2021): 648–53. http://dx.doi.org/10.1784/insi.2021.63.11.648.

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The internal structure of heavy-calibre rocket engines, as used in army ordnance, is a multi-interface bonding structure. The bonding quality between layers has an important impact on safety when shooting, so it must be tested before use in the field. In this paper, the progress of research into ultrasonic testing (UT) technology for the interface bonding of solid rocket motors is reviewed from the two aspects of testing methods and signal processing technology. Future work is also discussed.

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Ahmad, hosseini, and R. Asokan Dr. "TESTING OF COMPOSITE ON DROP-WEIGHT IMPACT TESTING AND DAMAGE IDENTIFICATION OF COMPOSITE USING NON-DESTRUCTIVE TESTING TECHNIQUES UT - C SCAN." International Journal of Innovative Research in Advanced Engineering VII, no. IV (2020): 267–78. https://doi.org/10.26562/ijirae.2020.v0704.002.

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In recent years the use of composite materials in structural components has become increasingly common in a wide range of engineering applications. Composite materials offer numerous advantages over more conventional materials because of their superior specific properties, but a serious obstacle to a more widespread use of these materials is their high sensitivity to localized impact loading. This paper presents an experimental study to assess the impact response of drop weight impact tests on fiber reinforced polymer composites with deferent load and damage identification of composite using N

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Xiong, Longhui, Guoqing Jing, Jingru Wang, Xiubo Liu, and Yuhua Zhang. "Detection of Rail Defects Using NDT Methods." Sensors 23, no. 10 (2023): 4627. http://dx.doi.org/10.3390/s23104627.

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The rapid development of high-speed and heavy-haul railways caused rapid rail defects and sudden failure. This requires more advanced rail inspection, i.e., real-time accurate identification and evaluation for rail defects. However, existing applications cannot meet future demand. In this paper, different types of rail defects are introduced. Afterwards, methods that have the potential to achieve rapid accurate detection and evaluation of rail defects are summarized, including ultrasonic testing, electromagnetic testing, visual testing, and some integrated methods in the field. Finally, advice

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Febrianti, Ade, Muhammad Hamdi, and Juandi M. "Analysis of Non-Destructive Testing Ultrasonic Signal for Detection of Defective Materials Based on the Simulink Matlab Mathematica Computation Method." Science, Technology and Communication Journal 1, no. 2 (2021): 46–58. http://dx.doi.org/10.59190/stc.v1i2.27.

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In this paper, an Ultrasonic Non-Destructive Test (NDT-UT) has been carried out on steel using the Simulink-Matlab Mathematica computation method. This study aims to analyze the NDT-UT output signal for material defect detection using secondary data as the first sample. The sample is then analyzed using the Fast Fourier Transform (FFT) method to produce a spectrum waveform and image thermography. It can be seen that there is a decrease in signal height from 1 a.u to 0.55 a.u. The first sample waveforms were used to analyze the second sample, third sample, and fourth sample, and all the samples

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Boztepe, Mete Han. "An Overview of Non-Destructive Testing for Composites Materials." ALKÜ Fen Bilimleri Dergisi 7, no. 1 (2025): 43–54. https://doi.org/10.46740/alku.1649587.

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Non-Destructive Testing (NDT) methods are essential for assessing the integrity and reliability of composite materials without causing damage. Composite materials are widely used in industries such as aerospace, automotive, and civil engineering. Therefore, the demand for advanced inspection techniques has increased. This article provides an overview of various NDT methods, including Visual Testing (VT) and Visual Inspection (VI), ultrasonic testing (UT), infrared thermography (IRT), and acoustic emission (AE). The advantages, limitations, and applications of these techniques are discussed. Th

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Sanchez Duo, Irati, Jose Luis Lanzagorta, Iratxe Aizpurua Maestre, and Lander Galdos. "Enhancing Time-of-Flight Diffraction (TOFD) Inspection through an Innovative Curved-Sole Probe Design." Sensors 24, no. 19 (2024): 6360. http://dx.doi.org/10.3390/s24196360.

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Time-of-Flight Diffraction (TOFD) is a method of ultrasonic testing (UT) that is widely established as a non-destructive technique (NDT) mainly used for the inspection of welds. In contrast to other established UT techniques, TOFD is capable of identifying discontinuities regardless of their orientation. This paper proposes a redesign of the typical TOFD transducers, featuring an innovative curved sole aimed at enhancing their defect detection capabilities. This design is particularly beneficial for thick-walled samples, as it allows for deeper inspections without compromising the resolution n

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Ley, Obdulia, Manny Butera, Valery Godinez, and Simon Chung. "Assessing Impact Damage on Composites Using Line Scanning Thermography." AM&P Technical Articles 170, no. 6 (2012): 20–25. http://dx.doi.org/10.31399/asm.amp.2012-06.p020.

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Abstract This article compares two nondestructive test methods that are widely used to assess impact damage in carbon fiber-reinforced polymer composites. Infrared line scanning thermography (LST) and immersion ultrasonic testing (UT) are shown to be equally capable of detecting delaminations and internal cracking caused by low-velocity impacts, although LST was easier to use and provided results more quickly that were easier to interpret.

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Jing, Yan Hong, Hong Xing Lu, Da Quan Li, and Qiang Zhu. "Analysis on Internal Defect of 319S Aluminum Alloy Impeller by Semi-Solid Thioxcasting." Materials Science Forum 850 (March 2016): 219–25. http://dx.doi.org/10.4028/www.scientific.net/msf.850.219.

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In the present investigation a batch of impellers made of 319S aluminum alloy with about 300 pieces and produced by semi-solid thixocasting process were subjected the ultrasonic testing (UT). The experimental results revealed that the equivalent size of the defects in the impellers was not more than φ0.4mm FBH+12dB. And there were two main types of defects in 12 mm depth area from the machined surface, where defect was apt to form. One type was single defect and the other was intensive defect. Moreover, other nondestructive testing (NDT) was used to test some impellers containing typical defec

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Watkins, Stetson, and James Bittner. "Resonance Bond Testing: Theory and Application." Materials Evaluation 79, no. 6 (2021): 512–19. http://dx.doi.org/10.32548/2021.me-04225.

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Resonance bond testing is a nondestructive testing (NDT) technique that is used to detect disbonds, delaminations, and other voids in composite materials. The aerospace industry has seen an increase in the use of carbon fiber reinforced plastics (CFRP) for aircraft and spacecraft construction. Composite materials offer many advantages over traditional metallic structures, which include weight savings, increased strength, design for specific load paths, and the ability to easily construct geometrically complex structures. Resonance bond testing has many established uses for metallic structures

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Vybornov, I. I., and D. L. Piotrovskiy. "ON THE ISSUE OF AUTOMATION OF WELDED JOINT TESTING USING ULTRASONIC TESTING (UT) AND MACHINE LEARNING METHODS." Современные наукоемкие технологии (Modern High Technologies), no. 1 2025 (2025): 17–23. https://doi.org/10.17513/snt.40274.

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Kang, Chun-Won, Masumi Hasegawa, and Haradhan Kolya. "Ultrasonic wave velocity as a universal metric for defect detection in timber structures: A case study on Japanese cedar wood (<i>Cryptomeria japonica<\i>)." Sound & Vibration 59, no. 2 (2025): 2463. https://doi.org/10.59400/sv2463.

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This study makes significant contributions to the field of ultrasonic testing (UT) by offering a novel approach to the identification of artificially introduced defects within Japanese cedar wood (Cryptomeria japonica). The findings are of particular relevance for the heritage conservation and construction sectors, where non-invasive defect detection is paramount. The study establishes a robust framework for assessing the structural integrity of timber by correlating ultrasonic wave velocity reductions with defect size and distribution. Big-sized defects led to more substantial decreases in wa

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Kang, Yi Hua, Jian Bo Wu, Jun Tu, and Yan Hua Sun. "The Design of Automatic Detection and Classification System for Recycled Drill Pipe." Advanced Materials Research 301-303 (July 2011): 1024–28. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1024.

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In order to meet oil production requirement, the automatic detection and classification system for recycled drill pipe is badly needed. After carefully analyzed the inspection process, a novel NDT method composed of MFLT (magnetic flux leakage testing) and UT (ultrasonic testing) on drill pipe rotating is designed. Afterwards, a geometrical dimensions measurement system for drill pipe by laser is developed. Additionally, drill pipe is automatically classified with the application of database and fieldbus technologies. Finally, the automatic detection and classification system is formed, which

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