Publications

  • Wu, Y., Cui, R., Zhang, K., Zhu, X. and Popovics, J.S., 2022. On the existence of zero-group velocity modes in free rails: Modeling and experiments. NDT & E International, 132, p.102727. Published, 06/30/2022.
  • Wu, Y., Huang, C., Lee, S., Zhang, K., Zhu, X.*, Popovics, J. S., Dersch, M. (2022). A Machine Learning Framework for Rail Neutral Temperature Estimation using Impulse Vibrational Responses. ASNT Research Symposium, St. Louis, Missouri, June 20-23, 2022. Published, 06/22/2022.
    https://ndtlibrary.asnt.org/2022/AMachineLearningF...
  • Zhang, K., Cui, R., Wu, Y., Zhu, X.*, Popovics, J. S. (2022). Extracting Non-Propagating Modes in Waveguides via Electro-Mechanical Impedance Technique. ASNT Research Symposium, St. Louis, Missouri, June 20-23, 2022. Published, 06/22/2022.
  • Wu, Y., Zhang, K., Zhu, X.*, Popovics, J. S. (2022). Zero Group Velocity Modes in Rails: a Numerical Study. ASNT Research Symposium, St. Louis, Missouri, June 20-23, 2022. Published, 06/22/2022.
  • Wu, Y., Zhu, X.*, Baillargeon, J. (2022). Deep Autoencoder for Ultrasonic-based Rail Flaw Detection. ASME Joint Rail Conference, April 18-19, 2022. Published, 04/18/2022.
  • Wu, Y. & Huang, C., Lee, S., Zhang, K., Dersch, M., Popovics, J. S., Zhu, X. (2021). Rail Neutral Temperature Estimation using Zero Group Velocity Modes and Machine Learning. International Workshop of Structural Health Monitoring. Published, 12/07/2021.
  • Zhou, Z. & Li, J., Xia, W., Zhu, X., Sun, T., Cao, C., & Zhang, L. (2021). Enhanced piezoelectric and acoustic performances of poly (vinylidene fluoride-trifluoroethylene) films for hydroacoustic applications,. Physical Chemistry Chemical Physics. Vol. 22, 5711-5722. Published, 02/11/2021.
    https://pubs.rsc.org/en/content/articlelanding/202...
  • Ali Tarokh, Roman Y Makhnenko, Kiseok Kim, Xuan Zhu, John S Popovics, Branimir Segvic & Dustin E Sweet (2020). Influence of CO2 injection on the poromechanical response of Berea sandstone. Elsevier. Vol. 95, 102959. Published, 04/01/2020.
    https://www.sciencedirect.com/science/article/pii/...
  • FRANCESCO LANZA DI SCALEA, ALBERT YI-LING LIANG, SIMONE STERNINI, MARGHERITA CAPRIOTTI, DIPTOJIT DATTA, XUAN ZHU & ROBERT WILSON (2019). Ultrasonic Identification of Rail Tracks from Natural Wheel Excitations: Potential for High-Speed and High-Redundancy Rail Inspection. International Workshop of Structural Health Monitoring 2019. Published, 10/01/2019.
    http://www.dpi-proceedings.com/index.php/shm2019/a...
  • Xuan Zhu, HONGJIE HU, SIMONE STERNINI, SHENG XU & FRANCESCO LANZA DI SCALEA (2019). Stretchable ultrasonic transducer arrays for three-dimensional imaging on complex surfaces. International Workshop of Structural Health Monitoring. Published, 10/01/2019.
    http://www.dpi-proceedings.com/index.php/shm2019/a...
  • Albert Liang, Simone Sternini, Margherita Capriotti, Xuan Zhu, Francesco Lanza di Scalea & Robert Wilson (2019). Passive extraction of Green's function of solids and application to high-speed rail inspection. Vol. 10970. SPIE Smart Structures & Nondestructive Evaluation. Published, 03/23/2019.
    https://www.spiedigitallibrary.org/conference-proc...

Research Keywords

  • Intelligent Infrastructure
  • Experimental Mechanics
  • Structural Health Monitoring
  • Non-destructive Evaluation
  • Ultrasonic Guided Waves
  • Nonlinear vibrational/acoustical material characterization
  • Ultrasound imaging
  • High-speed rail
  • Geological Storage of CO2

Presentations

  • A Machine Learning Framework for Rail Neutral Temperature Estimation using Impulse Vibrational Responses. Invited Talk/Keynote, Presented, 06/23/2022.
  • Zero Group Velocity Modes in Rails: a Numerical Study. Conference Paper, Refereed, Presented, 06/20/2022.
  • Extracting Non-Propagating Modes in Waveguides via Electro-Mechanical Impedance Technique. Conference Paper, Refereed, Presented, 06/20/2022.
  • Deep Autoencoder for Ultrasonic-based Rail Flaw Detection. Conference Paper, Refereed, Presented, 04/18/2022.
  • TRB poster session: Vibration-Based Longitudinal Rail Stress Estimation Exploiting Contactless Measurement and Machine Learning (Rail Safety IDEA 41) . Other, Presented, 01/14/2020.
  • FHWA Aurora Board Meeting - Roadway Ice/snow detection using a novel infrared thermography technology. Invited Talk/Keynote, Presented, 10/09/2019.
  • UTA - Nondestructive Evaluation & Structural Health Monitoring of Rail Tracks, and more. Other, Presented, 09/26/2019.
  • International Workshop of Structural Health Monitoring ULTRASONIC IDENTIFICATION OF RAIL TRACKS FROM NATURAL WHEEL EXCITATIONS: POTENTIAL FOR HIGH-SPEED AND HIGH-REDUNDANCY RAIL INSPECTION . Conference Paper, Refereed, Presented, 09/17/2019.
  • Stretchable Ultrasonic Transducer Arrays for Three-Dimensional Imaging on Complex Surfaces . Conference Paper, Refereed, Presented, 09/17/2019.
  • Utah DOT - Ice/snow detection with infrared thermography at high-speed intersections. Other, Presented, 08/15/2019.
  • 46th Annual Review of Progress in Quantitative Nondestructive Evaluation QNDE 2019  July 14-19, 2019, Portland, OR, USA Nonlinear Vibrational/Ultrasonic Evaluation of Carbon-Treated Berea Sandstone . Other, Presented, 07/17/2019.
  • 46th Annual Review of Progress in Quantitative Nondestructive Evaluation QNDE 2019  July 14-19, 2019, Portland, OR, USA Effect of Stress on Impact-Based Vibration Response in Steel Rails . Other, Presented, 07/16/2019.
  • GSCO2 final meeting Nonlinear Vibrational/Ultrasonic Evaluation of Carbon-Treated Berea Sandstone . Invited Talk/Keynote, Presented, 05/21/2019.
  • SPIE Smart structures and NDE Passive Extraction of Green’s Function of Solids and Application to High-speed Rail Inspection. Other, Presented, 03/27/2019.
  • 2019 TRB Committee meeting presentation. Invited Talk/Keynote, Presented, 01/16/2019.
  • NDE/NDT Structural Materials Technology for Highways and Bridges (SMT) and the International Symposium on Non-Destructive Testing in Civil Engineering (NDT-CE) 2018 Poster session . Other, Presented, 08/28/2018.

Research Groups

  • Moein Ramezanpourkami, Graduate Student. Civil and environmental engineering. 08/25/2022 - present.
  • Peng Zhang, Graduate Student. Civil and Environmental Engineering. 08/25/2022 - present.
  • Nemish Atreya, Graduate Student. Civil and Environmental Engineering. 01/01/2022 - present.
  • Ranting Cui, Postdoc. Civil and Environmental Engineering. 09/01/2021 - 08/31/2022.
  • Keping Zhang, Graduate Student. 08/15/2020 - present.
  • Xiangdong He, Graduate Student. 08/15/2020 - present.
  • Adrian Porras, Undergraduate Student. Civil and Environmental Engineering. 09/02/2019 - 12/11/2020.
  • Yuning Wu, Graduate Student. Civil and Environmental Engineering. 08/26/2019 - present.

Research Equipment and Testing Expertise

  • AVIO R450 Pro infrared camera. Contact: Peter Zhu , 801-585-7961 , 110 Central Campus Dr..

Grants, Contracts & Research Gifts

  • INNOVATIVE METHODS FOR INTERROGATION OF DSC INTERNAL CONDITIONS. PI: Xuan Zhu. DOE NEUP, 10/01/2021 - 09/30/2024. Total project budget to date: $800,000.00
  • RAIL NEUTRAL TEMPERATURE ESTIMATION USING LOCAL TRACK VIBRATION MEASUREMENTS AND MACHINE LEARNING. PI: Xuan Zhu. Federal Railroad Administration, 09/21/2021 - present. Total project budget to date: $209,377.00
  • POLARIZED INFRARED AND OPTICAL IMAGING SYSTEM FOR TRANSIT INFRASTRUCTURE CONDITION ASSESSMENT. PI: Xuan Zhu. Federal Transit Administration, 09/08/2021 - present. Total project budget to date: $338,115.00
  • UDOT BRINE TANK CONDITION ASSESSMENT. PI: Xuan Zhu. Utah Department of Transportation, 08/04/2021 - present. Total project budget to date: $50,000.00
  • High-speed rail inspection exploiting and anomaly detection data processing approach. PI: Xuan Zhu. USDOT FRA, 06/19/2020 - 12/18/2021. Total project budget to date: $179,948.00
  • Roadway ice/snow detection using novel infrared thermography technology. PI: Xuan Zhu. Co-PI(s): Xianfeng yang. FHWA Aurora program, 06/01/2020 - 05/31/2022. Total project budget to date: $137,359.00
  • BRB braced frames for seismically resilient mass timber buildings. PI: Chris Pantelides. Co-PI(s): Xuan Zhu. USDA Wood Innovation Program, 05/14/2020 - 09/30/2022. Total project budget to date: $250,000.00
  • Development of a course module in machine learning for nondestructive testing at the University of Utah. PI: Xuan Zhu. ASNT, 05/01/2020 - present. Total project budget to date: $9,916.00