Literatura académica sobre el tema "Nondestructive Evaluation Laboratory (NDE Validation Center)"

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Artículos de revistas sobre el tema "Nondestructive Evaluation Laboratory (NDE Validation Center)"

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Millberg, L. S. "Up Close: Johns Hopkins Center for Nondestructive Evaluation." MRS Bulletin 13, no. 1 (1988): 27–33. http://dx.doi.org/10.1557/s0883769400066550.

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Nondestructive evaluation has historically been used almost exclusively for detecting macroscopic defects after materials have been made or put into service. However, the role of NDE is now changing to include in-process control in an effort to increase yields and performance of materials. This includes materials stability during transport, storage, and fabrication, as well as degradation behavior during in-service life. The NDE community has implied that applying NDE in these ways is crucial to solving the economic problems of U.S. manufacturing industries. So called “intelligent manufacturin
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2

Kumar, Anish, B. Sasi, Govind K. Sharma, B. Purnachandra Rao, and T. Jayakumar. "Nondestructive Evaluation of Austenitic Stainless Steel Welds." Advanced Materials Research 794 (September 2013): 366–74. http://dx.doi.org/10.4028/www.scientific.net/amr.794.366.

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The paper presents advanced ultrasonic and eddy current NDE techniques developed in the authors laboratory for nondestructive evaluation of austenitic stainless steel welds. The paper discusses the performance and comparison of 2D discrete wavelet transform (DWT) and de-noising methods applied on eddy current images obtained from stainless steel weld pad with machined longitudinal notches and a systematic approach for eddy current defect characterisation in weld pads by neural network. The simulation and experimental results on the effect of elastic anisotropy on ultrasonic phased array inspec
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3

Datta, Srijan, Antonello Tamburrino, and Lalita Udpa. "Gradient Index Metasurface Lens for Microwave Imaging." Sensors 22, no. 21 (2022): 8319. http://dx.doi.org/10.3390/s22218319.

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This paper presents the design, simulation and experimental validation of a gradient-index (GRIN) metasurface lens operating at 8 GHz for microwave imaging applications. The unit cell of the metasurface consists of an electric-LC (ELC) resonator. The effective refractive index of the metasurface is controlled by varying the capacitive gap at the center of the unit cell. This allows the design of a gradient index surface. A one-dimensional gradient index lens is designed and tested at first to describe the operational principle of such lenses. The design methodology is extended to a 2D gradient
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4

Arland, Josip, Krunoslav Markulin, and Nikola Pavlović. "TARGET – Development of Submersible ROV System for BMN Inspection." Journal of Energy - Energija 71, no. 3 (2023): 24–28. http://dx.doi.org/10.37798/2022713416.

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Most PWRs have penetrations in the RPV lower heads for in-core nuclear instrumentation. These penetrations generally are made of nickel-based Inconel Alloy 600. Weld materials are typically Alloy 82/182. Operating conditions of PWR plants are causing nickel-based alloys cracking through a process called primary water stress corrosion cracking (PWSCC). In 2003, the licensee for the South Texas Project Unit 1 (STP-1) identified apparent boron deposits on the lower RPV head near two bottom mounted nozzles (BMNs). The NRC issued Bulletin 2003-02 to obtain information on licensee inspection activit
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5

Green, Robert E. "Center for Nondestructive Evaluation." MRS Proceedings 66 (1985). http://dx.doi.org/10.1557/proc-66-101.

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ABSTRACTThe Johns Hopkins University Center for Nondestructive Evaluation (CNDE) has recently been established as an interdisciplinary center for research and instruction which draws on the resources and talent of the School of Engineering, the Applied Physics Laboratory, and the School of Medicine. The nondestructive evaluation techniques developed and employed are especially useful to control and improve product quality in manufacturing processes and to assure the highest level of reliability for materials, parts, and products. The center is dedicated to research which will lead to more soph
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Libros sobre el tema "Nondestructive Evaluation Laboratory (NDE Validation Center)"

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NDE Validation Center (U.S.), ed. FHWA nondestructive evaluation (NDE) validation center. NDE Validation Center, Federal Highway Administration, 1999.

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2

Nondestructive Evaluation Center Laboratory fact sheet. U.S. Dept. of Transportation, Federal Highway Administration, Turner-Fairbank Highway Research Center, 2010.

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Actas de conferencias sobre el tema "Nondestructive Evaluation Laboratory (NDE Validation Center)"

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Palkovic, S. D., K. Taniguchi, and S. C. Bellemare. "Nondestructive Evaluation for Yield Strength and Toughness of Steel Pipelines." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11204.

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Abstract Material mechanical property data including fracture toughness help address potential integrity threats such as material loss through corrosion, stress corrosion cracking (SCC), and fatigue. In-the-ditch (ITD) nondestructive evaluation (NDE) of mechanical properties has expanded beyond traditional hardness testing to provide measurements of strength and fracture toughness of metals without the need for sample removal and laboratory testing. This paper describes two new and complementary mechanical testing methods recently applied to vintage pipeline steels as input to integrity manage
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2

DARGAHI, MOZHGAN MOMTAZ, and DAVID LATTANZI. "NDE DATA CORRELATION USING ENCODE-DECODER NETWORKS WITH SCALOGRAM IMAGES." In Structural Health Monitoring 2021. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/shm2021/36328.

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Nondestructive Evaluation (NDE) technologies are increasingly used for structural condition assessments. Over the lifespan of a structure, a variety of NDE techniques may be employed, leading to a scenario where a structure’s life-cycle time history is depicted through a variety of complex and heterogeneous measurements. Therefore, improved understanding of the statistical associations between NDE data sources would allow engineers to integrate these data sources for analysis purposes. It would also provide new insights into the fundamental information shared between heterogeneous NDE observat
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3

Crawford, Susan L., Steven R. Doctor, Anthony D. Cinson, Michael W. Watts, Traci L. Moran, and Michael T. Anderson. "Preliminary Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion With Validation From Mechanical Testing." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25280.

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Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, are being conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high density polyethylene (HDPE) pipe for assessing lack of fusion. The work provides information to the United States Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultra
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4

Herzog, Pamela G., Vincent Lupien, James T. Miller, John J. Selman, and Michael Moles. "Inspection of Fastener Holes Using Ultrasonic Phased Arrays." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/nde-25815.

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Abstract An Air Force Aging Aircraft Project was initiated to identify a suitable replacement for the Autoscan. The Autoscan is a unique piece of equipment that was originally identified for specific inspections for detection of first-layer, faying surface fatigue cracks (.030″ and larger) around fastener holes beneath the fastener heads, without removal of the fastener. The currently inspected parent material ranges from .125 to .3 inches thick, 2024T3 or 7075-T73 aluminum. Potential also exists for replacing other aging inspection equipment such as the Rotoscan. A secondary objective was to
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