Relevant bibliographies by topics / Ultrasonic Testing (UT)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Ultrasonic Testing (UT)'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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

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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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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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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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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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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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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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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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Dissertations / Theses on the topic "Ultrasonic Testing (UT)"

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Lim, WeiChiang Eric. "EMBEDDED SPECKLE BONDLINE DEFECT DETECTION USING ULTRASONIC DIGITAL IMAGE CORRELATION (UT-DIC)." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2391.

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The primary objective of this research is to conduct further evaluation of ultrasonic digital image correlation (UT-DIC) on strain map analysis and defect detection of adhesive joints with embedded speckle pattern. UT-DIC is a non-destructive evaluation method that utilized ultrasonic C-scan images for whole field strain and displacement analysis. Acrylic glass, epoxy resin system and metal shavings with high acoustic impedance of a specific weight were used to create the samples which were loaded under tension. Defects with varying shapes and sizes were implemented by surface preparation to u
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Larsson, Niklas. "Kartläggning av OFP och defektrelaterade parametrar : Inriktning på termisk utmattning." Thesis, Karlstad University, Division for Engineering Sciences, Physics and Mathematics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-447.

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<p>I både kvalitets- och kontrollarbete finns det behov att kunskapsmässigt komma så nära verkligheten som möjligt vid fastställande av defektparametrar för oförstörande provning (OFP). Orsaken är att olika acceptanskrav och bedömningsgränser är svåra att klarlägga när man inte kan förlita sig på att uppgifter är realistiska. I projektet har olika erfarenheter använts för att få en bättre helhetsbild i området för defektparametrar och oförstörande provning.</p><p>Denna rapport redovisar den inledande delen av forskning och utvecklingsprojektet PLANT 2, där olika defektparametrar kartlagts och
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Books on the topic "Ultrasonic Testing (UT)"

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Hall, T. E. The SAFT-UT real-time inspection system: Operational principles and implementation. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1988.

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Hall, T. E. The SAFT-UT real-time inspection system: Operational principles and implementation. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1988.

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Kubota, Kazuo. Shiyōzumi nenryō chozō shisetsuyō konkurīto kyasuku no kyanisuta futa yōsetsubu no UT kensa hōhō no kentō: Study of ultrasonic test method for welded lids of canisters for concrete casks in spent fuel storage facility. Genshiryoku Anzen Kiban Kikō, 2014.

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Book chapters on the topic "Ultrasonic Testing (UT)"

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Xu, Chunguang, and Weibin Li. "Non-Contact UT Techniques." In Fundamentals of Ultrasonic Testing. CRC Press, 2024. http://dx.doi.org/10.1201/9781032625096-11.

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Huang, Peng, Zequan Yu, and Huiming Pan. "Theoretical and Experimental Study on Multiparameter Criteria of Ultrasonic Method for Foundation Piles." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1748-8_3.

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AbstractAs one of the important methods to survey the foundation pile integrity in most engineering industries in China, ultrasonic testing (UT) has such advantages as determining the position and scope of defects accurately and good operability. In this paper, on the basis of the in-depth study of China’s industrial standards, main parameters for evaluating pile integrity in each standard were extracted, features and deficiencies of each parameter were analyzed in detail, and a multiparameter identification method of ultrasonically testing foundation pile integrity, which takes wave velocity,
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Joseph, Manu, Sushant K. Manwatkar, S. Syamkumar, M. Arumugam, S. V. S. Narayanamurty, and G. Jeganlal. "Metallurgical Characterization of Defect Observed During Ultrasonic Testing (UT) of Copper Alloy Forgings Used in Cryogenic Engines with the Aid of Computed Tomography." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1036-2_2.

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Carcreff, Ewen, Nans Laroche, and Anne-Françoise Obaton. "Review of Ultrasonic Testing for Metallic Additively Manufactured Parts." In Additive Manufacturing Design and Applications. ASM International, 2023. http://dx.doi.org/10.31399/asm.hb.v24a.a0006982.

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Abstract This article focuses on ultrasonic testing (UT) applied to metallic additive manufacturing (AM) parts, presenting the basic principles of UT. It provides a detailed discussion on postprocess UT inspection of powder-bed-fusion-manufactured samples and directed-energy-deposition-manufactured samples.
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Sahl, Mikael, Mattias Broddegård, Erik Lindgren, and Håkan Wirdelius. "Ultrasonic Signal Response from Internal Manufactured Defects in PBF-LB Manufactured Superalloys." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240160.

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In the emerging field of Additive Manufacturing (AM), the promise of unparalleled design flexibility, resource efficiency, and rapid prototyping has captivated both industry and academia. While AM techniques offer a wide range of manufacturing possibilities, they also present unique challenges in ensuring structural integrity and material properties. Non-Destructive Testing (NDT) methods, including Ultrasonic Testing (UT), have emerged as invaluable tools for evaluating the internal structure of AM components without compromising their integrity. By employing NDT techniques, it is possible to
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Wang, Zezhong. "Intelligent NDT on Used Die/Mould for Remanufacturing." In Solid Waste Management [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1006682.

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Remanufacturing is an important option for industry waste. As a main source of industry solid waste, industry equipment, such as dies and moulds, needs inspections to progress for further remanufacturing processes. To automate inspections such as ultrasonic testing, there are some challenges in robot control, for example, the orientation of transducer and the moving speed. In this study, a model-based method will be used to control the orientation of the end-effector of the robotic arm based on contact force to control the ultrasonic probe to implement robotic UT. A collaborative robotic arm i
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Nishimura Yoshihiro, Akimoto Naoki, Fukuda Katsumi, Hayashi Takeharu, Ikeda Eiki, and Uchibe Ginji. "Impedance Matching Using Variable Capacitors in Electromagnetic Ultrasonic Flaw Detection." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-767-2-165.

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Centrifugal casting tubes have uneven surfaces and cannot be inspected by Ultrasonic Testing (UT). Therefore, not all products are checked. Electromagnetic acoustic tests (EMATs) were conducted on centrifugal casting tubes, and their effectiveness was examined. However, signals derived by EMAT is very poor and weak. Acoustic attenuation of centrifugal casting tubes is very high due to their large grains. We developed a C-C impedance-matching circuit to produce electromagnetic acoustic waves, applied it to aluminum specimens, and examined the C-C matching effectiveness.
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Kosaka Daigo, Kojima Fumio, and Umetani Kosuke. "Pipe Wall Thickness Measurements on Flow Accelerated Corrosion by Electro-Magnetic Acoustic Transducer." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2012. https://doi.org/10.3233/978-1-60750-968-4-233.

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This paper is concerned with a quantitative nondestructive evaluation of pipe wall thinning using an Electro-Magnetic Acoustic Transducer (EMAT). Measurements using EMAT is applied to the downstream of orifice with Flow-Accelerated Corrosion (FAC). First, using mock FAC pipes, the feasibility and applicability of the proposed method are investigated. Test pipes are fabricated to simulate a growth of wall thinning or scale appearance of inside surface. Second, sizing accuracy for a test pipe with natural FAC was examined. The experimental results showed good agreement with detection results of
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Yamaguchi, Toshihiko, and Ovidiu Mihalache. "EMAT Based on Halbach Magnet Configuration for Detecting Faraway Defects in Long Metal Plates." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2025. https://doi.org/10.3233/saem250016.

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The paper confirms the feasibility of detection of faraway defects in long metal plates, up to 3.5 meters, using EMAT (Electromagnetic Acoustic Transducer) based on a Halbach magnet. The development and optimization of the new EMATs is based on 2D FEM (two-dimensional Finite Element Method) simulations using a physics-coupling formulation of ECT (Eddy Current Testing) and UT (Ultrasonic Testing) in order to increase the EMAT signal amplitude and its signal-to-noise ratio of the defects. The defects are located on the opposite side of the surface where the EMAT is located, with depths exceeding
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V. Senthilkumar, Dr, and Professor A. Nagadeepn. "AI-BASED NDE FOR COMPOSITE MATERIALS." In Futuristic Trends in Artificial Intelligence Volume 3 Book 12. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3biai12p1ch1.

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The utilization of composite materials has experienced rapid growth across various industries, owing to their superior mechanical properties and reduced weight. However, ensuring the structural integrity and reliability of composite components demands robust Non-Destructive Evaluation (NDE) techniques. In recent years, the integration of Artificial Intelligence (AI) in NDE has emerged as a promising approach to overcome the limitations of conventional methods and enhance inspection capabilities. This paper provides a comprehensive review of AI-driven NDE techniques tailored specifically for co
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Conference papers on the topic "Ultrasonic Testing (UT)"

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Galbraith, Joseph M., and George C. Williamson. "Practical Considerations for Users of Guided Wave Ultrasonic Testing." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07164.

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Abstract Over the last decade, commercialization of Guided Wave Ultrasonic Testing (also referred to as Long Range UT) has provided industry with a powerful new technique for ascertaining the integrity of piping systems. The major advantage of the technique is it’s capability to screen inaccessible piping over long distances from a single exposed location. The information developed allows the user to identify the locations in a pipe that have suffered potentially injurious corrosion and gain an understanding of the significance of the damage. Guided Wave Ultrasonic Testing (GWUT) provides this
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Wassink, Casper, Frederic Reverdy, Guillaume Neau, and Olivier Roy. "New UT Techniques for HTHA Detection - Lessons from the Field." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16320.

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Abstract HTHA occurs in an environment containing hydrogen and high temperatures. High temperatures change the atomic form of hydrogen to form methane bubbles into the steel which can turn into cracks. Refinery owners have started additional inspections for HTHA after the component failure that was not anticipated. However, HTHA defects are very small and difficult to detect with conventional ultrasonic testing or other volumetric NDT methods. Recently, new UT techniques have been proposed, including FMC/TFM, TOFD and PAUT. They have been applied in the field and improved based on the experien
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Kawano, Koji, and Anmol S. Birring. "Hydrogen Damage Detection by an NDT Technique." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89263.

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Abstract Hydrogen attack in steel components is a major problem in petroleum refineries and petrochemical plants that operate under high temperatures. Hydrogen attack weakens the steel by decarburization and microcracking and can lead to unexpected catastrophic failure. To avoid this problem, the American Petroleum Institute (API) issued API Standard 941, however, recent failures of low-alloy steels from hydrogen damage has caused a reevaluation of the Standard. One approach to assess hydrogen attack in a plant is to use nondestructive ultrasonic testing (UT) techniques for inspection. This pa
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Martinussen, Hanne, Ingar Stian Nerbø, Harald Sleire, Ole Alexander Eek, and Trine Okstad. "Observation of the Flow Dependent Corrosion Rate by Ultrasound Corrosion Monitoring on a Gas Pipeline." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09336.

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Abstract An ultrasonic erosion and corrosion monitoring system which provides real-time, online wall thickness data for onshore and topside piping and pipelines is presented. It is non-invasive and is installed and operated without interfering with production. Pulse-echo ultrasound monitoring provides fast and accurate data concerning erosion and corrosion rates, making it an effective tool for feedback in corrosion inhibitor programs. A 6-month trial of the ultrasonic monitoring system has been performed on an 8 inch OD water pipe in a gas plant. The system recorded measurements 4 times per d
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Bagdasarian, A. J., E. L. Bereczky, T. Ishiguro, T. Ishizuka, and T. Tahara. "Investigation of 26 Year Old Hydroprocessing Reactors - a Summary Report." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93629.

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Abstract Several old generation reactors with shell thickness of approximately six inches (150 mm) were investigated for material property damage and evaluation of defects. These 26 year old reactors were made of annealed 2¼Cr-1Mo steel with double layer stainless steel weld overlay. The UT indications in the weld joints and PT indications on the surface of stainless steel weld overlay were detected during routine inspections. After retirement of the reactors, several test blocks which included the welded joints and weld overlays were taken from the locations with internal flaws and overlay cr
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Al Kindi, Anwaar, Vijay Edwin Sebastian, and Hamood Al Hashemi. "Non-Intrusive Corrosion Monitoring Technology: SmartPIMS and MatPIMS." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00317.

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Metallic material corrosion is one of the main concerns across different industries, including oil and gas. Internal corrosion monitoring aids in providing better picture of the overall pipeline internal condition, allowing for proactive measures to be taken in time and avoiding catastrophic failures. Petroleum Development Oman (PDO) is a leading company in the application of the new non-intrusive technologies (NIT) in corrosion monitoring field, testing, and evaluating the new technologies with the aim of processes digitalization and automations. This paper is presenting a case study of two (
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Attwood, P. A., Kees van Gelder, and C. D. Charnley. "CO2 Corrosion in Wet Gas Systems." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96032.

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Abstract The failure of a pipeline used to transport wet CO2 containing gas has highlighted the limitations that both intelligent surveys and ultrasonic testing (UT) inspection can have for the detection of internal grooving type corrosion. These limitations are presented, together with the inspection, testing and assessment programme that was subsequently introduced to evaluate the condition of other associated production facilities operating under similar conditions. Measures adopted to prevent the reoccurrence of such CO2 induced corrosion damage are discussed. In addition, the use of a cor
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Cross, N. O., and P. A. Collins. "Update on Refinery Inspection Techniques." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89258.

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Abstract Manually applied ultrasonic (UT) weld flaw evaluation of size and shape requires well trained, experienced operators. Available automated ultrasonic (AUT) systems simplify evaluation by producing a real-time hard copy of the flaw parameters. The same instrumentation can also be applied for thickness mapping of vessels for corrosion surveys. UT flaw evaluation also requires the operator to determine whether a flaw is critical (cracklike) or benign (rounded, irregular) since cracks generally must be removed and repairs made. Since operator flaw evaluation is prone to error, computerized
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Kim, Dong-Jin, Sung-Woo Kim, Jong Yeon Lee, et al. "Effect of Weld, Orifice and Elbow on FAC Rate of SA106 Pipe." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16662.

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Abstract A FAC (flow accelerated corrosion) test was performed for straight pipe composed of SA335 Gr P22 and SA106 Gr B (SA106-SA335-SA106) including a weld, as a function of the flow rate in the range of 7 to 12 m/s using the FAC demonstration test facility. Afterward, the experimental pipe was examined destructively to investigate any entrance and galvanic effects. In addition, the FAC rate obtained using a 50mm inner diameter (2 inch) pipe specimen was compared with the rate obtained from a rotating cylindrical electrode. The effect of the complicated fluid formed on the elbow and orifice
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Al-Shahrani, Mohammed Faiz, Lay Seong Teh, Salman Abdulaziz Al-Dossary, and Faisal Mousa Al-Mutahhar. "Proactive Corrosion Management for Dead-Legs." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13290.

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Abstract Identifying dead-legs and the related corrosion issues continues to be a challenge in the process industry. This paper presents a comprehensive program for managing corrosion in dead-legs. A three-step methodology is adopted focusing on identification, control and monitoring. The identification step entails a comprehensive No Flow/Low Flow (NFLF) survey. The survey revealed locations where stagnation of oily water containing dissolved carbon dioxide, hydrogen sulfide and possibly oxygen at the center bottom portion of pipes associated with crude stabilization units and natural gas liq
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Reports on the topic "Ultrasonic Testing (UT)"

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Schultz, Martin, Leslie Campbell, Ramsay Bell, and Phillip Sauser. A study of phased-array ultrasonic testing (PAUT) for detecting, sizing, and characterizing flaws in the welds of existing hydraulic steel structures (HSS). Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48750.

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Hydraulic steel structures (HSS) are components of navigation, flood control, and hydropower projects that control or regulate the flow of water. Damage accumulates in HSS as they are operated over time, and they must be inspected periodically. This is often accomplished using nondestructive testing (NDT) techniques. If damage is detected, the structure’s fitness for continued service must be evaluated, which requires information on the location and size of discontinuities. This information can be obtained using ultrasonic testing (UT) techniques. However, there is limited information on the r
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Schultz, Martin, Leslie Campbell, Ramsay Bell, and Phillip Sauser. A study of phased-array ultrasonic testing (PAUT) for detecting, sizing, and characterizing flaws in the welds of existing hydraulic steel structures (HSS). Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48735.

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Hydraulic steel structures (HSS) are components of navigation, flood control, and hydropower projects that control or regulate the flow of water. Damage accumulates in HSS as they are operated over time, and they must be inspected periodically. This is often accomplished using nondestructive testing (NDT) techniques. If damage is detected, the structure’s fitness for continued service must be evaluated, which requires information on the location and size of discontinuities. This information can be obtained using ultrasonic testing (UT) techniques. However, there is limited information on the r
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Hall, T. E., L. D. Reid, and S. R. Doctor. The SAFT-UT (synthetic aperture focusing technique for ultrasonic testing) real-time inspection system: Operational principles and implementation. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/7176682.

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Lozev and Spencer. L52023 Inspection of Welds in Thin-Wall Pipe Using Mechanized Ultrasonic Inspection. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0011117.

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Generally, the inspection of welds in pipes with a wall thickness less than 6 mm is performed using radiography.� Because radiography is very sensitive to the orientation of planar weld defects, these types of defects often go undetected.� In contrast, ultrasonic testing (UT) offers a better solution for detecting and sizing of these defects. In this project a method to inspect welds in thin-walled pipe less than 6-mm thick using mechanized ultrasonic weld inspection was developed.�The project investigated the application of time-based high-frequency (up to 15 MHz) single/multi-probe technique
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Lozev. L52022 Validation of Current Approaches for Girth Weld Defect Sizing Accuracy. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011325.

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Computational tools based on probabilistic fracture mechanics have been developed to enable reliability-based fitness-for-service assessments of flawed girth welds. The same tools are readily adapted for establishing maximum allowable defect sizes to achieve targeted weld reliability. Sensitivity studies have shown that of the various input parameter uncertainties, measured defect height often has the greatest impact on the probabilities of both fracture and plastic collapse. A reduction in sizing uncertainty should thus dramatically improve predicted reliabilities. The increasing use of mecha
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Tao, Gang. PR-244-15700-R01 Characterization of 4.5 Inch Casing Corrosion Features. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011523.

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This work conducts a measurement and analysis project on of 4.5" casing corrosion features. Casing samples removed from natural gas storage wells were provided for corrosion feature characterization and comparison in this project. These casing samples have been previously logged by Baker Hughes using their 4995 High Resolution Vertilog (HRVRT) Magnetic Flux Leakage (MFL) tool in 2013. The log results were also provided to C-FER, which formed the basis for comparing to laboratory-measured corrosion features to assess the HRVRT performance. Two measurement methods, the Internal Rotary Inspection
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Lozev, Mark, Roger Spencer, Ta-Chieh Huang, and Pratik Patel. L52236 Ultrasonic Inspection of Hot Tap Branch Connections and Weld Sleeve-Fillet Weld using Phased Arrays. Pipeline Research Council International, Inc. (PRCI), 2006. http://dx.doi.org/10.55274/r0010149.

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This evaluatates the emerging phased-array (PA) automated ultrasonic testing (AUT) method and further assesses the performance of AUT and PA AUT techniques to detect and size flaws in the current pipelines with a relatively wide range of wall thickness. Given the critical nature of pipelines and the consequences of structural failure, designers are adopting reliability and fitness-for-purpose (FFP) design methods to ensure that structural integrity can be guaranteed throughout the entire design life. The use of reliability and FFP based design methods requires the use of improved assessment an
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Royer, Roger, Jason Van Velsor, Brent Maples, and Scott Riccardella. PR-335-183837-R03 NDE Technician Performance Evaluation Through Practical Application Blind Trials. Pipeline Research Council International, Inc. (PRCI), 2022. http://dx.doi.org/10.55274/r0012200.

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PRCI commissioned this project (NDE-2-7) to further investigate the effects of human performance factors on Non-Destructive Evaluation (NDE) performance for conducting Magnetic Particle Inspections (MPI) and Ultrasonic Thickness Testing (UT) on pipeline components. MPI and UT techniques were targeted for this research project because they are among the most well understood and utilized NDE technologies for in-service oil and gas pipeline assessments. This project was conducted in parallel with another PRCI NDE-2-7 project (PR-580-163710), which focused on evaluating the impacts of training pro
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Haines(Archived), Harvey, Domenico Bellistri, and Jeff Vinyard. PR-366-173814-R01 Assessment of SCC with Advances in NDE including EMAT and IWEX Imaging. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011624.

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The goal of this project is to improve failure pressure estimates of stress corrosion cracking (SCC) colonies by advancing field measurements and comparison to in-line inspection (ILI) tool data. Electromagnetic acoustic transducer (EMAT) ILI technologies have made significant strides in providing crack depth measurements for SCC colonies, and emerging technologies such as ultrasonic testing (UT) imaging are providing more accurate in-ditch validation data. A project was proposed to improve failure pressure estimates, with 3 tasks spanning 3 years. This report covers the results of year 1 (tas
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Decroux, Agnes, Kassem Kalo, and Keith Swinden. PR-393-205100-R01 IRIS X-Ray CT Qualification for Flexible Pipe Inspection (Phase 1). Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012068.

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There are several techniques available to inspect single wall carbon steel pipelines including; Magnetic flux leakage (MFL), ultrasonic testing (UT), Electro-Magnetic Acoustic Transducer (EMAT), Phased Array, guide wave testing (GWT), etc. However, for more complex structures such as flexible pipelines the technology available to inspect them is far more limited. PRCI commissioned a program (SPIM 2-1) under the Subsea TC (2017-2020) to evaluate all known and suspected technologies that could be used to provide a detailed subsea inspection of a flexible riser. PRCI produced four samples of flex
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