Search Results - "Popovics, S."

NDE application of ultrasonic tomography to a full-scale concrete structure by Hajin Choi, Popovics, John S.

“…Newly developed ultrasonic imaging technology for large concrete elements, based on tomographic reconstruction, is presented. The developed 3-D internal images…”
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Application of Micro-Electro-Mechanical Sensors Contactless NDT of Concrete Structures by Ham, Suyun, Popovics, John S

“…The utility of micro-electro-mechanical sensors (MEMS) for application in air-coupled (contactless or noncontact) sensing to concrete nondestructive testing…”
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Imaging Concrete Structures Using Air-Coupled Impact-Echo by Zhu, Jinying, Popovics, John S

“…In this paper, air-coupled impact-echo is successfully applied for nondestructive evaluation of concrete. The air-coupled sensor is a small ( 6.3 mm diameter)…”
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Lamb Wave Basis for Impact-Echo Method Analysis by Gibson, Alexander, Popovics, John S

“…The impact-echo method has been developed over the past 20 years and is now widely used in the nondestructive evaluation of concrete. However, some practical…”
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Comparison of NDT Methods for Assessment of a Concrete Bridge Deck by Oh, Taekeun, Kee, Seong-Hoon, Arndt, Ralf W, Popovics, John S, Zhu, Jinying

“…AbstractThe field application of three different nondestructive tests (NDTs)—air-coupled impact echo (IE), infrared (IR) thermography, and sounding (chain…”
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Contactless Ultrasonic Wavefield Imaging to Visualize Near-Surface Damage in Concrete Elements by Song, Homin, Popovics, John S.

“…We present work to detect and visualize near-surface damage in concrete using contactless ultrasonic wavefield imaging technology. A fully contactless…”
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Surface-Wave Based Model for Estimation of Discontinuity Depth in Concrete by Ahn, Eunjong, Kim, Hyunjun, Sim, Sung-Han, Shin, Sung Woo, Popovics, John S, Shin, Myoungsu

“…In this paper, we propose an accurate and practical model for the estimation of surface-breaking discontinuity (i.e., crack) depth in concrete through…”
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Leaky rayleigh and scholte waves at the fluid-solid interface subjected to transient point loading by JINYING ZHU, POPOVICS, John S, SCHUBERT, Frank

“…The analysis of acoustic waves generated by a transient normal point load applied on a fluid–solid interface is presented. The closed-form exact solution of…”
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Silicon ion radiation as a viable surrogate for emulating neutron radiation damage in silicates by Polavaram, Krishna C., Evani, Sai Kalyan, Drewry, Sean M., Rodriguez, Elena Tajuelo, Alnaggar, Mohammed G., Wetteland, Christopher J., Page, Katharine, Popovics, John S., Sickafus, Kurt E., Le Pape, Yann, Garg, Nishant

“…Nuclear power plants are aging around the world, and a precise assessment of irradiation damage in their components is needed. One key component, concrete, and…”
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Improved Interpretation of Vibration Responses from Concrete Delamination Defects Using Air-Coupled Impact Resonance Tests by Oh, Taekeun, Popovics, John S, Ham, Suyun, Shin, Sung Woo

“…AbstractThe deteriorating national infrastructure demands improved nondestructive evaluation (NDE) and structural health monitoring methods for existing…”
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Air-coupled ultrasonic diffuse-wave techniques to evaluate distributed cracking damage in concrete by Ahn, Eunjong, Shin, Myoungsu, Popovics, John S.

“…•Diffuse-wave signals using air-coupled receiver shows acceptable SNRs, to evaluate micro-cracking damage in concrete.•Even maintaining the same reliability,…”
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Monitoring active corrosion of metals in natural environments with magnetometry by Gallo, Gonzalo E., Popovics, John S.

“…Magnetic fields induced by electrochemical activity from aqueous corrosion of two metals are monitored remotely with low cost sensors in a natural (unshielded…”
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Flocculation and sedimentation in suspensions using ultrasonic wave reflection by Chung, Chul-Woo, Popovics, John S., Struble, Leslie J.

“…This work was undertaken to help understand and interpret the ultrasonic wave reflection response of Portland cement paste as it transforms from a fluid-like…”
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Evaluation of non-destructive impact-echo data from the national bridge inventory by Scherr, Johannes F., Grosse, Christian U., Popovics, John S.

“…The National Bridge Inventory's free and public database InfoBridge contains a large quantity of non-destructive test (NDT) data. We studied the InfoBridge…”
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Transient nonlinear vibration characterization of building materials in sequential impact scale experiments by Bittner, James A., Popovics, John S.

“…Characterizing standard building materials such as concrete is challenging primarily because of the broad range of constituent component sizes within the…”
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Effectiveness of diffuse ultrasound for evaluation of micro-cracking damage in concrete by Ahn, Eunjong, Shin, Myoungsu, Popovics, John S., Weaver, Richard L.

“…The main objective of this research is to investigate the applicability of diffuse ultrasound to the evaluation of distributed micro-cracking damage in…”
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Crack Propagation in Flexural Fatigue of Concrete by Kolluru, Subramaniam V, O'Neil, Edward F, Popovics, John S, Shah, Surendra P

“…In this paper the behavior of concrete subjected to flexural fatigue loading is studied. Notched concrete beams were tested in a three-point bending…”
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Extracting non-propagating oscillatory fields in concrete to detect distributed cracking by Song, Homin, Popovics, John S.

“…Work to detect and locate distributed subsurface cracks in concrete by extracting non-propagating oscillatory fields is presented. The medium of interest is…”
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Direct imaging of moisture effects during slow dynamic nonlinearity by Bittner, J. A., Popovics, J. S.

“…Transient hysteretic dynamic behaviors, commonly known as slow dynamics, have been observed to exist in many materials, but a physical cause for the phenomena…”
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The Potential for Material Property Characterization Using Physics-Informed Neural Networks and Ultrasonic Wave Data by Lee, Sangmin, Popovics, John S.

“…There is a need for reliable nondestructive test methods that can collect data from structural members and analyze the results in a rapid and efficient manner…”
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