Relevant bibliographies by topics / Non-destructive testing (NDT)

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

Academic literature on the topic 'Non-destructive testing (NDT)'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 January 2025

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Journal articles on the topic "Non-destructive testing (NDT)"

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Mineo, Carmelo, and Yashar Javadi. "Robotic Non-Destructive Testing." Sensors 22, no. 19 (October 9, 2022): 7654. http://dx.doi.org/10.3390/s22197654.

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Non-destructive testing (NDT) and evaluation (NDE) are commonly referred to as the vast group of analysis techniques used in civil, medical, and industrial sectors to evaluate the properties of materials, tissues, components, or structures without causing any damage [...]
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Раiuk, David, Edgardo A. La Bruna, and Mariano S. Zecchi. "Digital NDT (Non Destructive Testing)." IFAC Proceedings Volumes 28, no. 19 (September 1995): 341–46. http://dx.doi.org/10.1016/s1474-6670(17)45103-2.

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D. A., Oke,, Oladiran, G. F, and Raheem, S. B. "Correlation between Destructive Compressive Testing (DT) and Non Destructive Testing (NDT) for Concrete Strength." International Journal of Engineering Research and Science 3, no. 5 (May 31, 2017): 27–30. http://dx.doi.org/10.25125/engineering-journal-ijoer-may-2017-12.

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Kumar, Anish, and Walter Arnold. "High resolution in non-destructive testing: A review." Journal of Applied Physics 132, no. 10 (September 14, 2022): 100901. http://dx.doi.org/10.1063/5.0095328.

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Since the beginning of the applications of non-destructive testing/evaluation (NDT/NDE) techniques, efforts have been made consistently to improve their detection sensitivity and resolution. In the present paper, factors governing lateral resolution in three major NDT techniques, viz., ultrasonic testing (UT), x-ray radiographic testing (XRT), and eddy current testing (ECT) are presented. Furthermore, a review of recent advances in these NDT techniques to reach the theoretically achievable resolution limit or even surpassing the same using alternate approaches is also discussed. For example, resolution in UT is theoretically limited to half the wavelength by the Rayleigh limit; however, subwavelength resolutions have been achieved through the applications of near field methods by capturing the evanescent field. On the other hand, the resolution achieved in XRT is primarily limited to half the source/focal spot size, which is many orders of magnitude larger than the wavelength. Over the years, the reduction in the focal spot from macro-focus to micro-focus and now to nano-focus has led to improvement in the resolution to a few nanometers, of course, in combination with suitable magnification required due to detectors with limited pixel size (a few μm to a few 10 s of μm). Similarly, innovations in electromagnetic/magnetic sensors have significantly improved the resolution achieved in ECT. Atomic force microscopy, metamaterials, and artificial neural network-based methods have been employed for obtaining high-resolution NDE images. At the end, authors' perspective toward possible directions for high-resolution NDT is presented.
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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 (November 30, 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), Ultrasonic Testing (UT), Radiographic Testing (RT), Acoustic Emission Testing (AET), etc in various fields.
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Safhi, Amine el Mahdi, Gilberto Cidreira Keserle, and Stéphanie C. Blanchard. "AI-Driven Non-Destructive Testing Insights." Encyclopedia 4, no. 4 (November 21, 2024): 1760–69. http://dx.doi.org/10.3390/encyclopedia4040116.

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Non-destructive testing (NDT) is essential for evaluating the integrity and safety of structures without causing damage. The integration of artificial intelligence (AI) into traditional NDT methods can revolutionize the field by automating data analysis, enhancing defect detection accuracy, enabling predictive maintenance, and facilitating data-driven decision-making. This paper provides a comprehensive overview of AI-enhanced NDT, detailing AI models and their applications in techniques like ultrasonic testing and ground-penetrating radar. Case studies demonstrate that AI can improve defect detection accuracy and reduce inspection times. Challenges related to data quality, ethical considerations, and regulatory standards were discussed as well. By summarizing established knowledge and highlighting advancements, this paper serves as a valuable reference for engineers and researchers, contributing to the development of safer and more efficient infrastructure management practices.
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Veselá, Jana, Pavel Zahrádka, and Jan Matějíček. "Replicas Application in Non-Destructive Testing." Defect and Diffusion Forum 417 (June 28, 2022): 123–27. http://dx.doi.org/10.4028/p-j3ecpk.

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Abstra c t The use of replication kits has recently become an integral part of the field of non-destructive testing (NDT). Classical surface NDT methods are thus advantageously supplemented by surface prints in selected places of the inspected material. Replicate kits are set to be the fingerprint surface structure requiring no special surface preparation prior to collection of replicas and are intended for the 3D measurement of the dimensions of surface defects. Replicas are then evaluated using a 3D optical profilometer with optical or laser-optical lenses.
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Lee, Sangwook, and Nikolas Kalos. "BRIDGE INSPECTION PRACTICES USING NON-DESTRUCTIVE TESTING METHODS." Journal of Civil Engineering and Management 21, no. 5 (May 6, 2015): 654–65. http://dx.doi.org/10.3846/13923730.2014.890665.

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Non-Destructive Testing (NDT) methods have been developed and employed as a means of rapid and effective structural inspection. Despite the various kinds of NDT methods developed for bridge inspection, not much study has been performed on their usage and effectiveness at a practical level. This paper presents an evaluation of NDT methods to identify how they are implemented in state agencies in the U.S. The findings and analysis presented herein were based on the results obtained from a survey questionnaire, targeted at Departments of Transportation (DOTs) in all U.S. states and territories. The survey questionnaire was initiated to clarify multiple issues regarding NDT implementation, such as identifying the types of inspection that involve NDT methods, bridge components that are most likely to be inspected with NDT, effective methods of inspecting concrete or steel structures, and so on. A total of 40 state agencies participated in the survey processing, and the major findings obtained from the states are illustrated and explained in detail in this paper. In addition, bridge defects that are hard to detect in the course of inspection and current research efforts to develop novel NDT methods were investigated.
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Ulus, Özlem, Furkan Eren Davarcı, and Elif Eren Gültekin. "Non-destructive testing methods commonly used in aviation." International Journal of Aeronautics and Astronautics 5, no. 1 (June 30, 2024): 10–22. http://dx.doi.org/10.55212/ijaa.1418742.

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Non-Destructive Testing (NDT) methods play a pivotal role in ensuring the safety and reliability of aircraft in the aviation industry. This article provides a comprehensive overview of the NDT techniques commonly employed in aviation to assess the structural integrity and performance of aircraft components and materials without causing any damage. The article discusses the significance of NDT in aviation, highlighting the importance of early defect detection, maintenance cost reduction, and enhanced operational safety. It delves into various NDT methods, such as ultrasonic testing, eddy current testing, radiographic inspection, magnetic particle testing, and dye penetrant testing, explaining their principles and applications. In addition, in this article, the advantages and disadvantages of NDT methods and which methods are used in which part of the aircraft are mentioned. Understanding these NDT methods is crucial for aviation professionals, as they contribute to the continued airworthiness of aircraft, ensuring that passengers and crew can travel safely and confidently.
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Sadowski, Łukasz. "Non-Destructive Testing for Building Evaluation." Buildings 12, no. 7 (July 16, 2022): 1030. http://dx.doi.org/10.3390/buildings12071030.

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Dissertations / Theses on the topic "Non-destructive testing (NDT)"

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Gros, X. E. "Fusion of multiprobe NDT data." Thesis, Robert Gordon University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294936.

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Smith, Ian Colin. "Vision based systems for hardness testing and NDT." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317273.

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The work presented in this thesis concerns the development of vision based systems for two hardness (destructive) tests, namely; the Shore and Vickers and a quality assurance non-destructive test. In each case the vision system is based on an IBM PC compatible computer fitted with a commercially available frame store. Bespoke image analysis software was written using the C language for each system. In the Shore test, hardness is judged by the maximum rebound height attained by an indenter incident on a test sample. The purpose of the vision system is to measure the rebound height automatically. Laser light is used to illuminate the indenter and a vidicon vision camera is used to view its motion. Two approaches to the problem are considered; one in which image data is analysed in real time and one in which image·data is merely stored in real time and analysed a posteriori. Non-real time analysis is shown to be superior to real time analysis in terms of accuracy and reliablity and its software implementation is discussed in detail. The Vickers test uses the size of the permanent impression left by an indenter forced into the test material under a known load as a hardness index. In this case the purpose of the vision system is to measure the size of the indentation automatically. The original image analysis algorithms are shown to be capable of analysing good quality samples but are unreliable when applied to poor quality specimens. Further, fault-tolerant, algorithms are described to provide reliable and accurate results over wide variations in sample quality.The quality assurance application involves automated visual inspection of novel ferrite components for defects. Each component is approximately 8 mm in diameter, annular in shape, and coated with aluminium. Laser light is used to illuminate individual components which arc viewed using a charge-coupled device (CCD) video camera. Image analysis algorithms for characterising defects in component geometry and surface finish arc discussed. The system is shown to capable of measuring component edge eccentricity and hole offset as well as providing a quantitative description of surface chips and cracks. The system is further shown to be capable of separately classifying surface defects extending to the edge of a component. Calculation of shape parameters for surface defects also provides a means of distinguishing cracks from surface chips.
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Höglund, Kristofer. "Non-destructive Testing Using Thermographic Image Processing." Thesis, Linköpings universitet, Datorseende, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-89862.

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In certain industries, quality testing is crucial, to make sure that the components being manufactured do not contain any defects. One method to detect these defects is to heat the specimen being inspected and then to study the cooling process using infrared thermography. The explorations of non-destructive testing using thermography is at an early stage and therefore the purpose of this thesis is to analyse some of the existing techniques and to propose improvements. A test specimen containing several different defects was designed specifically for this thesis. A flash lamp was used to heat the specimen and a high-speed infrared camera was used to study both the spatial and temporal features of the cooling process. An algorithm was implemented to detect anomalies and different parameter settings were evaluated. The results show that the proposed method is successful at finding the searched for defects, and also outperforms one of the old methods.
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Bale, Jefri Semuel. "The damage observation of composite using non destructive testing (NDT) method." Thesis, Paris 10, 2014. http://www.theses.fr/2015PA100067/document.

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L'objectif de ce travail de thèse est d'étudier le comportement de l'endommagement des matériaux composites sous chargement statique et fatigue par contrôle non destructif (C.N.D) thermographie et soutenu par émission acoustique et la tomographie (CT scan). Pour cela, ce unidirectionnels composite à fibres de verre (GFRP) et discontinue composite à fibres de carbone (DCFC) ont été utilisés comme les éprouvettes qui ont fourni par PSA peugeot citröen, France. Une série d'essais mécaniques a été réalisée pour déterminer le comportement de l'endommagement sous chargement statique et fatigue. Pendant tout des essais mécanique, la thermographie a été utilisé pour l'observation en temps réel pour suivre l'évolution des températures sur la surface de l'éprouvette et supporté par émission acoustique dans certaines conditions. Cette étude a utilisé une forme rectangulaire et se compose d'éprouvettes trouées et non trouées au centre de l'éprouvette. La vitesse de déplacement constante est appliquée pour observer l'effet sur le comportement de l'endommagement sous chargement de traction statique. Sous les essais de fatigue, le paramètre constant de la fréquence et de l'amplitude de stress a été étudiée pour chaque niveau de charge pour avoir les propriétés de fatigue et l'évolution de l'endommagement de l'éprouvette. La tomographie a été utilisée pour confirmer l'apparition de l'endommagement et l'etat du matériau après l'essai de fatigue. L'analyse des résultats de l'expérimentation et de l'observation NDT montré le bon accord entre les résultats mechnical et NDT thermographie avec prise en charge par l'observation de l'émission acoustique en détecter l'apparition et la propagation de l'endommagement de GFRP PRV et DCFC sous chargement de statique en traction. Les essais en fatigue montrent que la dissipation thermique est liée à l'évolution de l'endommagement et également thermographie et peut être utilisé avec succès pour déterminer la limite d'endurance (HCFS) et la courbe de Wöhler du matériau composite. Les résultats par CT scan ont mesurée avec succès les endommagements et l'état du matériau après essai de fatigue du matériau composite
The aim of this study is to investigate the damage behaviour of composite material in static and fatigue condition with non destructive testing (NDT) thermography method and supported by acoustic emission and also computed tomography (CT) scan. Thermography and acoustic emission are used in real-time monitoring techniques during the test. On the other hand, NDT observation of tomography is used for a post-failure analysis. In order to achive this, continuous glass fiber composite (GFRP) and discontinuous carbon fiber composite (DCFC) have been used as the test specimens which supplied by PSA Company, France. A series of mechanical testing was carried out to determine the damage behaviour under static and fatigue loading. During all the mechanical testing, thermography was used in real-time observation to follow the temperature change on specimen surface and supported by acoustic emission in certain condition. This study used rectangular shape and consist of specimen with and without circular notches (hole) at the center. The constant displacement rate is applied to observe the effect on damage behaviour under tensile static loading. Under fatigue testing, the constant parameter of frequency and amplitude of stress was explored for each load level to have the fatigue properties and damage evolution of specimen. The tomography was used to confirm the appearance of damage and material condition after fatigue testing. The analysis from the experiment results and NDT observation shown the good agreement between mechnical results and NDT thermography with supported by acoustic emission observation in detect the appearance and propagation of damage for GFRP and DCFC under static loading. Fatigue testing shows that thermal dissipation is related to the damage evolution and also thermography and can be successfully used to determine high cycle fatigue strength (HCFS) and S-N curve of fiber composite material. From post failure analysis, CT scan analysis successfully measured and evaluated damage and material condition after fatigue test for fiber composite material. v
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Campbell, M. A. "An evaluation of monolithic phased arrays for Non destructive testing." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381502.

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Begum, Rushna. "Neural network processing of impact echo NDT data." Thesis, City University London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340456.

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Hall, Ian Damon. "Generation of high resolution tomographic images for NDT applications." Thesis, University of Strathclyde, 2001. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24263.

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Techniques for the generation of quantitative ultrasonic images in non-destructive testing have generally involved a substantial cost in terms of data storage and computational time, and have thus found limited application. Preference has therefore been given to the more straightforward imaging methods, such as main beam projection, which detect the presence of defects and provide a limited flaw sizing capability. The relatively small number of flaws requiring detailed examination, coupled with substantial increases in available data storage and computational power, have made it possible to use a number of straightforward tomographic reconstruction methods to produce high resolution images of flaws contained within the material under examination. A set of these images are then fused together using a novel fuzzy logic image fusion technique into a single image from which more accurate measurements of flaw size, shape and orientation can be made. However, if the quality of the raw A-scan data is not sufficiently high then the data will be filtered using Maximum Likelihood Deconvolution (MLD). The aim of this blind deconvolution method is to improve the time resolution and Signal to Noise Ratio of the A-scan data with only knowledge obtained from the data, this is in contrast to the majority of techniques currently used for this purpose. The three tomographic methods which have been implemented in this work are Reflection tomography, Time-of-flight Diffraction tomography and Transmission tomography. In addition a Single Bounce Image Enhancement method has been developed to improve the images. Selection of images used in the fusion process depends on the nature of the flaw, as each of these methods identifies different characteristics of the flaw shape. The components of the imaging system have been validated experimentally by the generation of high resolution images from a variety of flaws contained within cylindrical aluminium test specimens.
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Chen, Xiaoran. "Computational and Experimental Approach for Non-destructive Testing by Laser Shearography." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-theses/928.

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"Non-destructive testing (NDT) is critical to many precision industries because it can provide important information about the structural health of critical components and systems. In addition, NDT can also identify situations that could potentially lead to critical failures. Specifically, NDT by optical methods have become popular because of their non-contact and non-invasive nature. Shearography is a high-resolution optical NDT method for identification and characterization of structural defects in components and has gained wide acceptance over the last decade. Traditional workflow of NDT by shearography has been determined to be inefficient, due to the requirements of having experienced operators that must determine the most suitable loading methods to identify defects in samples under testing as well as to determine the best system arrangement for obtaining the maximum measuring sensitivity. To reduce the number of experiments that are required and to allow inspectors to perform NDT by laser shearography in a more efficient way, it is necessary to optimize the experimental workflow. The goal of the optimization would be an appropriate selection of all experimental variables including loading methods, boundary conditions, and system¡¯s sensitivities, in order to avoid repeating experiments several times in the processes of components characterization and health monitoring. To achieve this goal, a hybrid approach using shearographic fringe prediction with Finite Element Analysis (FEA) has been developed. In the FEA simulations, different loading conditions are applied to samples with defects, and in turn, the shearographic fringes are predicted. Fringe patterns corresponding to specific loading conditions that are capable of detecting defects are chosen and experimental tests are performed using those loading conditions. As a result, using this approach, inspectors could try different combinations of loading methods, and system¡¯s sensitivities to investigate and select appropriate experimental parameters to improve defect detection capabilities of the system by using low-cost computer simulations instead of lengthy and expensive experiments. In addition, to improve the identification of defects on the sample, camera calibration and image registration algorithms are used to project the detected defects on the sample itself to locate and visualize the position of defects during shearographic investigations. This hybrid approach is illustrated by performing NDT of a plate made of acrylic that has a partial hole at the center. Fringe prediction with finite element analysis are used to characterize the optimized experimental procedures and in turn, corresponding measurements are performed. A multimedia projector is employed to project the defects on the surface of the plate in order to visualize the location of the partial hole (defect). Furthermore, shearographic system is used for other applications including NDT of a composites plate and of a thin latex membrane. The procedures shows the effectiveness of the approach to perform NDT with shearography methods. "
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Köpke, Uwe Gerhard. "Condition monitoring of buried gas pipes using a vibrating PIG." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259460.

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Li, Xin. "Eddy current techniques for non-destructive testing of carbon fibre reinforced plastic (CFRP)." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/eddy-current-techniques-for-nondestructive-testing-of-carbon-fibre-reinforced-plastic-cfrp(e8aa9a3f-108d-49a4-9f32-2e6118195898).html.

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AbstractThis thesis describes research on the use of eddy current techniques for nondestructivetesting of carbon fibre reinforced plastic (CFRP). The research hasinvolved bulk conductivity testing, fibre direction characterization and 3D FEMmodeling of the CFPR and eddy current probes geometry. In the conductivity testing,how the sample thickness, fibre volume content and fibre conductivity affects thesignal from the eddy current has been evaluated. Eddy current testing shows gooddirectionality as CFRP is an anisotropic material, thus is very suitable to characterizethe fibre orientation. Direction sensitive probes have been developed and tested toreveal information about the fibre direction and layer. Computer FEM software hasbeen used to analyze the magnetic field inside the sample and probes. Specific probegeometries have been designed depending on the electrical properties of thecomposites and testing requirement. The experiment, simulation and analysis resultsshow very good agreement. However, when the measuring frequency increases, noisesand parasitic capacitance inevitably become significant and have a negative influenceon the results. Improvements and further research are proposed which are believed tomake eddy-current techniques a more feasible and efficient measurement method, willcontribute to the development and maintenance of light weight CFRP composites.
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Books on the topic "Non-destructive testing (NDT)"

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International, Conference on Emerging Technologies in NDT (2nd 1999 Athens Greece). Emerging technologies in NDT: Proceedings of the 2nd International Conference on Emerging Technologies in NDT, Athens, Greece, 24-26 May 1999. Rotterdam: A.A. Balkeman, 2000.

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World, Conference on Non-Destructive Testing (14th 1996 New Delhi India). Trends in NDE science and technology: Proceedings of the 14th World Conference on NDT (14th WCNDT) : December 8-13, 1996, New Delhi, India. Rotterdam: A. A. Balkema, 1997.

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Nondestructive Testing of Wood Symposium (10th 1996 Lausanne, Switzerland). NDT 1996: Proceedings : 10th International Symposium on Nondestructive Testing of Wood : Lausanne-Switzerland, August 26-27-28, 1996. Lausanne, Switzerland: Presses polytechniques et universitaires romandes, 1996.

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ASNT Fall Conference (1990 Seattle, Wash.). NDT for today's applications: 1990 ASNT Fall Conferences and Quality testing show, Seattle Sheraton Towers, Seattle, Washington, October 8-12, 1990. Columbus, OH: American Society for Nondestructive Testing, 1990.

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1933-, Koerner Robert M., and Hazardous Waste Engineering Research Laboratory., eds. Nondestructive testing (NDT) techniques to detect contained subsurface hazardous waste: Project summary. Cincinnati, OH: U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory, 1988.

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K, Thome D., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., and Physical Research Inc, eds. Two new NDT techniques for inspection of containment welds beneath coatings: Final report, October 1989-March 1990. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1991.

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British Conference on Non-Destructive Testing (27th 1988 Portsmouth, England). Reliability in non-destructive testing, NDT-88: Proceedings of the 27th Annual British Conference on Non-destructive Testing, Portsmouth, UK, 12-15 September 1988. New York: Pergamon Press, 1989.

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C, Brook, and Hanstead P. D, eds. Impact of non-destructive testing, NDT-89: Proceedings of the 28th Annual British Conference on Non-Destructive Testing, Sheffield, UK, 18-21, September 1989. Oxford, England: Pergamon Press, 1990.

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British Institute of Non-Destructive Testing., ed. The NDT yearbook: The official yearbook of the British Institute of Non-Destructive Testing. Northampton: British Institute of Non-Destructive Testing., 1991.

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British Institute of Non-destructive Testing., ed. The NDT yearbook: The official yearbook of the British Institute of Non-destructive Testing. Northampton: British Institute of Non-destructive Testing, 1989.

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Book chapters on the topic "Non-destructive testing (NDT)"

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Kočiš, Štefan, and Zdenko Figura. "Non-destructive testing (NDT)." In Ultrasonic Measurements and Technologies, 124–46. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1199-7_5.

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Pullarcot, Sunil. "Non-Destructive Testing (NDT) of Piping." In Process Plant Piping, 159–70. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003328124-11.

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Sanchez, Leandro F. M. "Visual inspection and non-destructive testing (NDT)." In Internal Swelling Reactions in Concrete, 44–67. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003188155-4.

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Ndambi, J. M., J. Vantomme, J. De Visscher, W. P. De Wilde, B. Peeters, M. A. Wahab, and G. De Roeck. "Modal testing as a tool for non-destructive testing of concrete structures." In Emerging Technologies in NDT, 301–8. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078586-52.

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Marini, R., M. A. Vaz, J. Monteiro, J. A. Chousal, and F. Santos. "Non-destructive testing of composite sandwich panels using optical interferometric methods." In Emerging Technologies in NDT, 25–30. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078586-6.

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Pasquer, V., N. Dubé, and A. Lamarre. "Dynamic focusing of phased arrays for non-destructive testing: Characterization and application." In Emerging Technologies in NDT, 89–96. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078586-17.

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Vaxavanidis, N. M., C. P. Pallis, and P. P. Psyllaki. "Correlation of ISO 9000 and 14000 with the procedures of non-destructive testing." In Emerging Technologies in NDT, 369–76. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078586-63.

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Vahaviolos, S. "The history and the driving forces of non destructive testing today and beyond 2000." In Emerging Technologies in NDT, 11–14. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078586-3.

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Aguilar, Rafael, Mauricio Gonzales, and Miguel A. Pando. "Non-destructive (NDT) and Minor-destructive (MDT) Testing Tools to Support the Structural Characterization of Adobe Constructions." In Structural Characterization and Seismic Retrofitting of Adobe Constructions, 153–81. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74737-4_7.

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Yang, Xiaoliang, Xuequan Wang, Zhe Pan, Jie Liu, and Jiandong Luo. "Preliminary Application of CT Technology in Non-destructive Testing of Nuclear Fuel Elements." In Springer Proceedings in Physics, 98–106. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_10.

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AbstractWith the emergence of various novel fuel elements, traditional X-ray test technologies refer to national standards that have gradually been unable to meet the non-destructive testing (NDT) requirements for these novel fuel elements. As a new NDT technology, industrial computed tomography (CT) has great potential for NDT of nuclear fuel elements. In this paper, through a personalized transformation of self-developed X-ray equipment, we carried out CT scanning imaging experiments up to more than 400 kV on pellet-shell gap in rod-shaped fuel elements, a high-density annular component, and a tungsten-based workpiece. Not only that, after three-dimensional reconstruction and image analysis, it was found that sub-millimeter internal void defects could be detected. Furthermore, size measurements were carried out through image analysis which achieved a relative error of 5%. A conservative conclusion can be drawn from this research: industrial CT, including but not limited to micro-CT, high-energy X-ray CT, etc., has an optimistic future in testing internal defects and measuring internal dimensions of novel fuel elements.
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Conference papers on the topic "Non-destructive testing (NDT)"

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Beckmann, Jorg, Holger Spranger, and Uwe Ewert. "THz Applications for Non-Destructive Testing." In 2017 Far East NDT New Technology & Application Forum (FENDT). IEEE, 2017. http://dx.doi.org/10.1109/fendt.2017.8584511.

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Abbas, Sumayya, Taha Ali, Uzair Gilani, Shayan Ahmed, Iqra Sajid, Faisal Amir, and Tariq M. Khan. "PC based Eddy Current non-destructive testing (NDT) system." In 2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2015. http://dx.doi.org/10.1109/i2mtc.2015.7151259.

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Gudra, Tadeusz, Przemyslaw Cieplik, and Krzysztof J. Opielinski. "Ultrasonic spectroscopy in non-destructive testing (NDT) of materials." In INTERNATIONAL CONGRESS ON ULTRASONICS: Gdańsk 2011. AIP, 2012. http://dx.doi.org/10.1063/1.3703215.

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Haryono, Andri, Mohammed Saif ur Rahman, and Mohammed Abou-Khousa. "Inspection of Non-Metallic Pipes Using Microwave Non-Destructive Testing (NDT)." In 2018 IEEE International RF and Microwave Conference (RFM). IEEE, 2018. http://dx.doi.org/10.1109/rfm.2018.8846531.

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Akhloufi, Moulay A., Yannis Guyon, Abdelhakim Bendada, and Clemente-Ibarra Castenado. "Three-dimensional non-destructive testing (NDT) in the infrared spectrum." In SPIE Sensing Technology + Applications, edited by Sheng-Jen (Tony) Hsieh and Joseph N. Zalameda. SPIE, 2015. http://dx.doi.org/10.1117/12.2087047.

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Zhou, Shi-Yuan, Shao-Han Wang, Xuan WU, Zhi-Jun Miao, and Qiang Zhang. "Ultrasonic Non-Destructive Testing of GRP-Rubber Composites Internal Defects." In 2017 Far East NDT New Technology & Application Forum (FENDT). IEEE, 2017. http://dx.doi.org/10.1109/fendt.2017.8584513.

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Küttenbaum, Stefan, Stefan Maack, Alexander Taffe, and Thomas Braml. "Non-destructive testing in civil engineering:." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1132.

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<p>The reassessment of bridges is becoming increasingly important. The basic requirement for analyses of structural safety is reliable knowledge about individual structures. This paper introduces the new approach to evaluate the quality of measured data gained from non-destructive testing (NDT) to provide reliable, objective, and relevant information about existing bridges. The purpose is to relate this validated knowledge to probabilistic analyses. Bridging the gap between NDT and numerical reassessments indicates reduced numerical uncertainties and residual service time extensions. This paper deals with an application of this approach using measurement data collected by ultrasonic technique at a prestressed concrete bridge.</p>
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MONDAL, S. C., A. A. BRENNER, J. SHANG, B. BRIDGE, and T. P. SATTAR. "REMOTE AUTOMATED NON-DESTRUCTIVE TESTING (NDT) WELD INSPECTION ON VERTICAL SURFACES." In Proceedings of the Eleventh International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812835772_0069.

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Rajkumar, C., V. S. Hemakumar, S. Jayavelu, M. Vijay Albert William, and J. Udaya Prakash. "Non – Destructive Testing (NDT) analysis in fused deposition modeling – A review." In 5TH INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN, ANALYSIS & DEVELOPMENT PRACTICES IN AEROSPACE & AUTOMOTIVE ENGINEERING: I-DAD’22. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0139323.

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Sahnoun, M., A. Allag, R. Drai, and A. Benammar. "Restoration of noisy radiographic images applied in Non Destructive Testing (NDT)." In 2019 International Conference on Advanced Electrical Engineering (ICAEE). IEEE, 2019. http://dx.doi.org/10.1109/icaee47123.2019.9014675.

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Reports on the topic "Non-destructive testing (NDT)"

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Lodeiro, M. J. Uncertainty of measurement for non-destructive testing (NDT). National Physical Laboratory, August 2022. http://dx.doi.org/10.47120/npl.mat105.

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Nallar, Melisa, Andrew Bernier, and Jamie Potter. Evaluation of non-destructive testing (NDT) methods for wood power poles. Engineer Research and Development Center (U.S.), September 2023. http://dx.doi.org/10.21079/11681/47652.

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This technical report aims to test the effectiveness of several non-destructive testing (NDT) technologies on wood utility poles to detect deterioration. The project will assess commercially available devices using sound velocity and drilling resistance methods for in-field measurements. The goal is to extend the lifetime of wood poles, prevent unexpected failure, and enhance their in-service life beyond the current 75-year expectation. Despite the benefits of wood poles, it is difficult to obtain reliable deterioration metrics on in-service poles, which can lead to premature decommissioning or pole failure. NDT methods have been developed to replace labor-intensive methods, but none have been largely adopted in common practice. Therefore, creating a database of validated data would expedite adoption. Integrating precise and efficient wood utility pole NDT can increase installation energy resiliency and facility sustainment in a fiscally responsible way, ensuring high standards of delivery of services.
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Ray, Jason, and Clayton Thurmer. 2020 guided wave inspection of California Department of Water Resources tainter gate post-tensioned trunnion anchor rods : Oroville Dam. Engineer Research and Development Center (U.S.), March 2022. http://dx.doi.org/10.21079/11681/43762.

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The Engineering and Test Branch within the Division of Operations and Maintenance of the California Department of Water Resources (DWR) and U.S. Army Corps of Engineers (USACE), Sacramento District, tasked the Sensor Integration Branch (SIB) at the Engineer Research and Develop-ment Center (ERDC) to perform non-destructive testing (NDT) on the trunnion anchor rods at Oroville Dam through the use of ultrasonic guided waves. This is the third year of this NDT. The results of the testing are presented along with qualitative analysis in determining whether a rod is in-tact or compromised. Analysis is based upon the expected results from other rods at the site, knowledge of rod response at other sites, data gathered from the trunnion rod research test bed at the ERDC, and comparison to the previous year’s effort.
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Weston. L51649 A Study of Processes for Welding Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), July 1991. http://dx.doi.org/10.55274/r0010216.

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The construction of a pipeline involves the joining, end to end, of a series of standard lengths of pipe together with other connections to the necessary valves, pumps, etc. Technically, when considered in isolation, this is a relatively simple joining operation and a number of processes can be used to perform it. When all of the production constraints are taken into consideration, however, the selection task becomes considerably more complex. Pipe diameter and wall thickness ranges are wide and new pipe materials are continuously becoming available. On land the terrain can vary from prairie to mountains and from swamps to urban surroundings. A significant proportion of pipe laying is also being done at sea in water depths which can exceed 3,300 feet (1000m). Regardless of all of these changing circumstances, one factor remains constant, a need to produce a technically acceptable pipeline at the lowest possible overall cost. This report reviews the development of welding processes in two main categories, Fusion Welding and Forge Welding. Non Destructive Testing (NDT) is also reviewed. Within each category, each process is considered separately in terms of process principles, general applications, application to pipeline welding, equipment for pipe welding, consumables, process tolerance and skill requirements, weld quality and inspection, process economics, limitations and future developments. Similar areas areconsidered in the section on NDT.
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Marinucci, Antonio. ACIP Pile Installation, Installation Monitoring, Full-scale Load Testing, and Extraction Program. Deep Foundations Institute, December 2017. http://dx.doi.org/10.37308/cpf-2016-acip-1.

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The Augered Cast-In-Place (ACIP) Pile Committee of the Deep Foundations Institute (DFI) performed a foundation installation, monitoring, performance and extraction program for ACIP piles in the fall of 2016. The purpose of the project was to demonstrate a fully monitored installation of instrumented 18 in (457 mm) and 24 in (610 mm) diameter ACIP piles, including automated monitoring equipment (AME); post-installation thermal integrity profiling (TIP) measurements; compression, tension, and lateral load testing (including monitoring of strain gages embedded along the compression pile shaft); and post-testing extraction of an installed pile for visual inspection. The program was initially planned by the ACIP Pile Committee, and a program site in Okahumpka, FL was selected. Initial funding was provided by the DFI Committee Project Fund with additional funds andin-kind pledges contributed from DFI members and industry partners. In the summer of 2016, the FloridaDepartment of Transportation (FDOT) and its research partners at the University of South Florida (USF)joined the program. Program details were finalized in the summer and fall of 2016. The purposes of this research effort were to demonstrate The fully monitored installation of instrumented ACIP piles, including the use of automated monitoring equipment (AME); The use and accuracy of thermal integrity profiling (TIP) methods with ACIP piles; The load-displacement behavior during compression, tension, and lateral load testing, including the use of and measurement by multiple strain gages embedded along the length of two piles; The integrity and as-constructed geometry of an ACIP pile by extracting an installed pile for visual inspection. To achieve the goals of the project, seven test piles were installed at a site in central Florida: two each for compression testing, tension testing, and lateral testing, and one pile for extraction and visual inspection. The intent of this document is to make the data and information obtained during the demonstration program available to the members of the DFI ACIP Pile Committee, Florida DOT, University of South Florida, and other possible research partners for review, analysis/interpretation, and discussion. The ultimate goals of this endeavor are to advance the overall state-of-the-practice for ACIP piles and to develop documentation for review and use; installation, monitoring, and testing methods; and reporting procedures to allow for both the use of ACIP piles for structural support of bridges and the inclusion of ACIP piles in DOT and other agency specifications in the state of Florida and elsewhere. All of the data presented and discussed herein can be made available in electronic format for additional analysis. Pertinent findings of the demonstration project include the following: The procedures and testing results described in the report highlight the successful installation, monitoring, and load carrying resistance provided by ACIP piles for structural support of bridges per the Florida DOT. The data can be used by the FL DOT as it develops a section for ACIP Piles for Bridges and Major Structures in its Standard Specifications; Grout volumes, as measured by an electromagnetic flowmeter and via manual counting of grout strokes, were in good agreement with each other; The overall grout volume of the extracted pile, when adjusted for the volume of grout observed flowing out of the top of the pile, was in good agreement with the volume calculated by manually measuring the circumference of the extracted pile at 1 ft (305 mm) intervals; Additional research into non-destructive testing (NDT) methods for ACIP piles, in particular Thermal Integrity Profiling, should produce a means to provide additional verification of pile integrity.
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Palkovic, Steven, Yasamin Salamat, Brendon Willey, and Simon Bellemare. PR-610-183867-R01 Fracture Toughness via In-ditch Non-destructive Testing - Validation. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), September 2020. http://dx.doi.org/10.55274/r0011802.

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A challenge for many pipeline operators is missing or incomplete records for sections of their transmission pipeline networks, especially regarding fracture toughness properties. These toughness values are necessary for performing fitness for service calculations and engineering critical assessment. New regulations for gas transmission pipelines stipulate conservative default values for applicable assets when traceable, verifiable, and complete (TVC) records are not available. The new rules allow for the use of nondestructive techniques within material verification programs to measure the actual steel properties in lieu of conventional destructive cut-outs. However, the nondestructive technique must be validated, and the measurement must account for error and uncertainty of the nondestructive process. The aim of this research program is to assess the capabilities and limitations of the Nondestructive Toughness Tester (NDTT) to meet the requirements of a material verification process for measuring fracture toughness properties. The NDTT is a new approach for measuring the toughness of steel pipelines through the application of a contact mechanics technique known as frictional sliding. This project consists of testing on 41 vintage steel pipe joints to compare the NDTT measurement of the tensile fracture response in a superficial volume of surface material with conventional laboratory measurements of toughness on the same sample. The outcomes include the development and assessment of nondestructive prediction models for the initiation fracture toughness from compact tension (CT) testing and the upper shelf Charpy V-Notch (CVN) impact energy. This report summarizes the testing procedures and analysis methodologies used, and the prediction performance of models based on NDTT measurements.
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Veer, J. van der, and J. van Wortel. L51758 Non-Destructive Assurance of Quality of Heat-Treated Fittings. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), March 1997. http://dx.doi.org/10.55274/r0010338.

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Sometimes heat treated components fail to pass the specified minimum mechanical requirements (yield strength, Charpy V-notch toughness). The influence of the complete heat cycle on the end results is not well understood and without a N.D.T. method for determining these properties the pipeline companies have difficulty in determining acceptable and non-acceptable individual components. In the quality control process for heat treated components, it is important to have a non-destructive testing technique available for predicting the yield strength and, if necessary, Charpy V-notch properties. In order to quantify the influence of the thermal cycle on the essential mechanical properties of plate material FeE355 and evaluate a promising N.D.T method for predicting yield strength and toughness, five heats of plate material FeE355 received ten different normalizing heat treatments (combinations of three different austenitizing temperatures and 4 heating/cooling rates). The heat treatment conditions were chosen to obtain a wide range of ferrite grain sizes/yield strengths. Together with the as-delivered conditions 55 conditions of plate material FeE355 were examined. Theexamination included:- Ferrite grain size measurements directly on the outer surface of the material (after removal of the decarburized zone) by means of replicas.- Tensile tests at 20�C, in twofold for all 55 conditions.- Charpy V impact tests at three temperatures, each in threefold for all 55 conditions.- Ferrite grain size measurements on cross sections of one of the threaded ends of all 110 tensile specimens.
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Lee, Wall, and Burch. PR-398-133719-R01 Inspection of Composite Repairs for Pipelines and Piping - Phase 2 NDE Trials. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), July 2014. http://dx.doi.org/10.55274/r0010557.

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The report reviews the research involved with Non-Destructive Examination (NDE) of composite repairs as applied to pipelines and piping. Four pipeline samples were evaluated each containing three repairs with an �open� training section and two �blind� sections (total of 12 repairs). Pipe defects included external corrosion wall loss and pitting represented by partial through-wall drilled holes. Application of the composite repairs, containing interlaminar defects and steel/composite debonding, was completed by four composite repair vendors. This included one carbon fiber and three glass fiber repair systems. The scope included an underwater repair system. Pre-hydrotest inspections were carried out between September and December 2013. Following the pre-hydrotest inspections, the samples endured static and cyclic hydrotesting. Pressure testing was done sequentially together with strain gage monitoring for three of the four samples. Acoustic emission monitoring was also performed. Static hydrotests were done to 72% and 90% SMYS with 10 minute holds in between. This was followed by cyclically testing to 10,000 cycles. Post-hydrotest inspections were done to investigate any changes that may have occurred during the hydrotests.
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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs, and Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, October 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the project, to develop and apply the two complementary methods for quality control of agricultural commodities. In Israel: An improved firmness testing system was developed and tested with tropical fruits. The new system included an instrumented fruit-bed of three flexible piezoelectric sensors and miniature electromagnetic hammers, which served as fruit support and low-energy excitation device, respectively. Resonant frequencies were detected for determination of firmness index. Two new acoustic parameters were developed for evaluation of fruit firmness and maturity: a dumping-ratio and a centeroid of the frequency response. Experiments were performed with avocado and mango fruits. The internal damping ratio, which may indicate fruit ripeness, increased monotonically with time, while resonant frequencies and firmness indices decreased with time. Fruit samples were tested daily by destructive penetration test. A fairy high correlation was found in tropical fruits between the penetration force and the new acoustic parameters; a lower correlation was found between this parameter and the conventional firmness index. Improved table-top firmness testing units, Firmalon, with data-logging system and on-line data analysis capacity have been built. The new device was used for the full-scale experiments in the next two years, ahead of the original program and BARD timetable. Close cooperation was initiated with local industry for development of both off-line and on-line sorting and quality control of more agricultural commodities. Firmalon units were produced and operated in major packaging houses in Israel, Belgium and Washington State, on mango and avocado, apples, pears, tomatoes, melons and some other fruits, to gain field experience with the new method. The accumulated experimental data from all these activities is still analyzed, to improve firmness sorting criteria and shelf-life predicting curves for the different fruits. The test program in commercial CA storage facilities in Washington State included seven apple varieties: Fuji, Braeburn, Gala, Granny Smith, Jonagold, Red Delicious, Golden Delicious, and D'Anjou pear variety. FI master-curves could be developed for the Braeburn, Gala, Granny Smith and Jonagold apples. These fruits showed a steady ripening process during the test period. Yet, more work should be conducted to reduce scattering of the data and to determine the confidence limits of the method. Nearly constant FI in Red Delicious and the fluctuations of FI in the Fuji apples should be re-examined. Three sets of experiment were performed with Flandria tomatoes. Despite the complex structure of the tomatoes, the acoustic method could be used for firmness evaluation and to follow the ripening evolution with time. Close agreement was achieved between the auction expert evaluation and that of the nondestructive acoustic test, where firmness index of 4.0 and more indicated grade-A tomatoes. More work is performed to refine the sorting algorithm and to develop a general ripening scale for automatic grading of tomatoes for the fresh fruit market. Galia melons were tested in Israel, in simulated export conditions. It was concluded that the Firmalon is capable of detecting the ripening of melons nondestructively, and sorted out the defective fruits from the export shipment. The cooperation with local industry resulted in development of automatic on-line prototype of the acoustic sensor, that may be incorporated with the export quality control system for melons. More interesting is the development of the remote firmness sensing method for sealed CA cool-rooms, where most of the full-year fruit yield in stored for off-season consumption. Hundreds of ripening monitor systems have been installed in major fruit storage facilities, and being evaluated now by the consumers. If successful, the new method may cause a major change in long-term fruit storage technology. More uses of the acoustic test method have been considered, for monitoring fruit maturity and harvest time, testing fruit samples or each individual fruit when entering the storage facilities, packaging house and auction, and in the supermarket. This approach may result in a full line of equipment for nondestructive quality control of fruits and vegetables, from the orchard or the greenhouse, through the entire sorting, grading and storage process, up to the consumer table. The developed technology offers a tool to determine the maturity of the fruits nondestructively by monitoring their acoustic response to mechanical impulse on the tree. A special device was built and preliminary tested in mango fruit. More development is needed to develop a portable, hand operated sensing method for this purpose. In North Carolina: Analysis method based on an Auto-Regressive (AR) model was developed for detecting the first resonance of fruit from their response to mechanical impulse. The algorithm included a routine that detects the first resonant frequency from as many sensors as possible. Experiments on Red Delicious apples were performed and their firmness was determined. The AR method allowed the detection of the first resonance. The method could be fast enough to be utilized in a real time sorting machine. Yet, further study is needed to look for improvement of the search algorithm of the methods. An impact contact-pressure measurement system and Neural Network (NN) identification method were developed to investigate the relationships between surface pressure distributions on selected fruits and their respective internal textural qualities. A piezoelectric dot-matrix pressure transducer was developed for the purpose of acquiring time-sampled pressure profiles during impact. The acquired data was transferred into a personal computer and accurate visualization of animated data were presented. Preliminary test with 10 apples has been performed. Measurement were made by the contact-pressure transducer in two different positions. Complementary measurements were made on the same apples by using the Firmalon and Magness Taylor (MT) testers. Three-layer neural network was designed. 2/3 of the contact-pressure data were used as training input data and corresponding MT data as training target data. The remaining data were used as NN checking data. Six samples randomly chosen from the ten measured samples and their corresponding Firmalon values were used as the NN training and target data, respectively. The remaining four samples' data were input to the NN. The NN results consistent with the Firmness Tester values. So, if more training data would be obtained, the output should be more accurate. In addition, the Firmness Tester values do not consistent with MT firmness tester values. The NN method developed in this study appears to be a useful tool to emulate the MT Firmness test results without destroying the apple samples. To get more accurate estimation of MT firmness a much larger training data set is required. When the larger sensitive area of the pressure sensor being developed in this project becomes available, the entire contact 'shape' will provide additional information and the neural network results would be more accurate. It has been shown that the impact information can be utilized in the determination of internal quality factors of fruit. Until now,
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Pit, Yann Le, Didier Caron, and Benoit Acker. PR-306-123740-R01 Comparative Analysis of Pipeline Inspection Technologies Using Guided Waves. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 2016. http://dx.doi.org/10.55274/r0011017.

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This document describes the analysis of performances of five non-destructive testing technologies for pipelines by propagation of ultrasound waves guided within the thickness along the axial direction. The tested tools are tools available on the market at the time that this document was written. Their individual performances have been analysed using an identical operating protocol so that they can be compared with each other. A comparative analysis has been made, so that the configurations for which the use of guided waves may or may not be envisaged can be deduced.�
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