- Research Areas of Interest
- Previous Research Experience
- Publications and Presentations
- Graduate Coursework
- Teaching Experience
(Please email me for more details.)
Senior Research and Development Engineer based in the Washington, D.C. Metro Area. I lead research projects to develop next generation diagnosis and prediction technology, which couple modern signal acquisition techniques with advanced analysis algorithms, signal processing, sensor fusion and artificial intelligence. I specialize in using ultrasonics, wave propagation and imaging based monitoring technology. I have received multiple research grants as Principal Investigator from US Federal Agencies.
Ph.D. in Engineering Mechanics, focusing on ultrasonics & wave mechanics in anisotropic media, and algorithmic health monitoring. I developed techniques and tools to characterize evolving deterioration in composite materials, analyze experimental health monitoring data, and estimate damage state & remaining life in composite specimens of various kinds.
Extensive experience in transportation and specifically automotive safety research at the Virginia Tech Transportation Institute (VTTI), USA’s premier transportation research center. I provided research support to several government and industry sponsored research projects at the Center of Advanced Automotive Research (CAAR), including in experiment design, algorithm development, numerical computer programming, and video data reduction.
Research Areas of Interest
- My broad interest is in defining the next era in smart, robust technology for diagnosis, prediction and classification.
- Development of adaptive and modular multi-modal sensing technology, through sensor fusion and artificial intelligence.
- Computational sensing technology and applications, and developing solutions to the inverse problem in inspection/monitoring.
- Applied mechanics theory and practice, including composite mechanics, wave propagation in complex and anisotropic media.
- Signal processing, statistical analysis, and machine learning as a framework to enable smart, computational prediction, identification and classification.
- Acoustics/ultrasonics and optical/thermal/hyperspectral imaging based signal acquisition, processing, feature extraction, and sensor fusion.
Ph.D. in Engineering Mechanics
Virginia Tech, Blacksburg, VA.
Bachelor of Mechanical Engineering (First Class)
Jadavpur University, Kolkata, India.
Previous Research Experience
Major: Engineering Mechanics
Department of Biomedical Engineering and Mechanics
(formerly Engineering Science and Mechanics),
Aug 2007 to July 2017.
Title: Monitoring Progressive Damage Development in Laminated Fiber Reinforced Composite Materials. (PDF, ~20MB)
Adviser: Dr. John C. Duke, Jr.
Characterized damage development and conditions for future failure in composites with crossply fiber orientation using analysis of experimental simulated acoustic emission data.
Developed automated algorithm and signal analysis software to estimate the arrival time of extensional and flexural Lamb wave modes from experimental ultrasonic signals.
Developed NDE parametric signatures to automatically detect critical damage in advance and predict future failure in composite laminates independent of their ply orientations.
Health monitoring, materials characterization and life prediction in complex, anisotropic materials, including composite materials and additive manufacturing components.
Acoustic emission, wave propagation and ultrasonic testing technology, and related analysis methods, in complex geometries and anisotropic materials.
Graduate Research Assistant
Summary: Provide research support to several government and industry funded automotive safety projects, including experiment design, algorithm development, numerical computer programming, and video data reduction.
Connected Vehicles: Performed predictive modeling and data analysis, to identify root causes of issues with the implementation of next-generation Vehicle-to-Vehicle communication and crash-avoidance systems, using MATLAB and other proprietory in-house software.
Sensor Fusion: Assessed possible implementions of dead reckoning and sensor fusion applications using vehicle-mounted Inertial Measurement Units (IMUs). Implemented adaptive digital filters for noise reduction and code for data accuracy using sensor fusion.
Gap Acceptance: Characterized and interpreted driver preferences about choosing gaps in traffic for merging. Designed video data reduction and data analysis protocols to study and time traffic patterns at intersections. Performed data analysis and visualization of results.
Turn behavior: Modeled speed and path of vehicles turning through intersections, based on movement and geometry parameters, to help with crash reconstructions. Studied driver behavior during left turns in presence of oncoming vehicles at different distance ranges.
Authorship: Authored and co-authored project final reports, research proposals and white papers. Revamped and modernized, then contributed to and maintained, the VTTI central MATLAB code repository (Funnel). Wrote documentation for using MATLAB and Mercurial with VTTI systems.
- Data Analysis. Experienced in statistical analyses, data cleaning, filtering, background correction, signal alignment, correlation methods, data clustering and classification, data visualization and interpretation.
- Programming. MATLAB/Octave, Python, Mathematica, C/C++, Object Oriented Programming (OOP), Shell-Scripting.
- Lab Work: Experienced in hands-on laboratory work, including using acoustics and ultrasonic array based methods, setting up experiments and machinery, acquiring data and performing data pre-processing.
- Software. LaTeX and BibTeX; SQL; HTML5 and CSS3; MS-Office; version control wtih Git/Mercurial. Familiar with image editing (Photoshop/Pixelmator) and usual other Mac and Windows software.
- Operating Systems: macOS, Windows, Linux/Unix.
- Photography: Received five FIAP (Fédération Internationale de l’Art Photographique) Acceptances at two international photography contests at Linz, Austria, and an Acceptance at Moscow International Photo Awards. Formerly, member of Jadavpur University Photographic Club. Select photos have been on public exhibition at Kolkata, India and Linz, Austria.
- Pratt Presidential Fellowship, Virginia Tech, 2007
- American Society for Nondestructive Testing (ASNT) Graduate Fellowship, 2008
- ASNT Graduate Travel Grant for conference presentation, 2009
- ASNT Graduate Travel Grant for conference presentation, 2011
- ASNT Graduate Travel Grant for conference presentation, 2014
- Virginia Tech Graduate Student Assembly (GSA) Travel Grant, 2014
- Peer review for journals:
- IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
- Research in Nondestructive Evaluation
- Mechanical Systems and Signal Processing
- Former reviewer, Society for Automotive Engineers (SAE) technical papers.
- Member of the American Society for Nondestructive Testing Research Council.
- Full member of Sigma Xi, the Scientific Research Honor Society.
- Member of the board at Jadavpur University Alumni Association — Washington Metropolitan Area.
- Former panel jury member with the Graduate Honor Society (GHS) at Virginia Tech
- Served on Graduate School committee to select the Virginia Tech Graduate Student of the Year 2017.
- Served on committee to identify and nominate the Chief Justice of the Virginia Tech Graduate Honor Society (to be appointed by the University President).
Publications and Presentations
Arnab Gupta and Dr. John Duke, Jr., Early Detection of Critical Damage in Composite Materials Using Simulated Acoustic Emission, manuscript to be submitted for peer-review and publication.
Arnab Gupta and Dr. John Duke, Jr., Identifying the Arrival of Extensional and Flexural Wave Modes Using Wavelet Decomposition of Ultrasonic Signals, Ultrasonics, Jan 2018, Vol. 82, pp. 261-271, doi: 10.1016/j.ultras.2017.09.008.
Arnab Gupta and Dr. John Duke, Jr., Characterizing Damage Development in Crossply Laminates Using Simulated Acoustic Emission, Materials Evaluation, April 2012, Vol. 70, No. 4, pp. 461-469.
A Gupta, H Yum and D Xiang, A Novel Full Matrix Capture Ultrasonic Imaging System for Non-Radioisotopic Inspections, technical report in preparation for submission to Department of Energy (2020).
A Gupta, H Yum and D Xiang, An Advanced Sensor Fusion Based Crew Health Monitoring System, technical report submitted to NASA (2020).
U Singh, A Gupta, H Yum and D Xiang, Large Standoff Magnetometry for Inspection of Deep Sea Pipelines, technical report and application software submitted to Oil & Gas Industry Conglomeration (2019).
A Gupta, H Yum, D Xiang and S Duning, Latent Parameters using Sensor Fusion for Additive Manufacturing Process Monitoring and Control, technical report submitted to Defense Logistics Agency (2019).
D Xiang, A Gupta, H Yum and S Rajaraman, A Hyperspectral Sensor System for NDE and Structural Health Monitoring of Gas Turbines, technical report submitted to U.S. Air Force (2018).
D Xiang, A Gupta and T Osborne, An Air Coupled Ultrasonic Array Scanning System for In-Situ Monitoring and Feedback Control of Additive Manufacturing, technical report submitted to DOE (2018).
D Xiang, A Gupta, D Hasanyan and S Rajaraman, 3-D Digital Image Correlation Based Non-Destructive Testing System for Qualification of Additive Manufacturing Parts, technical report submitted to NIST (2018).
R Lane, A Gupta and JC Duke, Jr., Wave Propagation in Damaged Composite Materials, ASNT 27th Annual Research Symposium Proceedings, Orlando, FL, 2018. doi: 10.32548/rs.2018.030.
Arnab Gupta and Dr. John Duke, Jr., Detecting Damage Transitions in Laminated Composites using Acoustic Emission, Proceedings of the 13th International Symposium on Nondestructive Characterization of Materials (NDCM-XIII), Le Mans, France, 2012. (PDF)
Arnab Gupta and Dr. John Duke, Jr., Tracking Progressive Damage Development in Composite Materials, presented at the 23rd Annual ASNT Research Symposium and Spring Conference, Minneapolis, MN, Mar 2014.
Arnab Gupta and Dr. John Duke, Jr., Detecting Damage Transitions in Laminated Composites using Acoustic Emission, presented at the 12th International Symposium on Nondestructive Characterization of Materials (NDCM-XII), Blacksburg, VA, June 2011. (PDF, ~25MB)
Arnab Gupta and Dr. John Duke, Jr., Characterizing Damage Development in Cross-Ply Laminates Using Acoustic Emission, presented at the 20th Annual ASNT Research Symposium and Spring Conference, San Francisco, CA, Mar 2011.
Dr. John Duke, Jr., Douglas Harold and Arnab Gupta, Assessment of Service-induced Damage for Sustainment of Composite Material Structures, presented at the 19th Annual ASNT Research Symposium, Williamsburg, VA, Mar 2010.
Arnab Gupta and Dr. John Duke, Jr., Assessing Service-induced Mechanical Deterioration of Aircraft Composite Materials Using Deterioration-induced Wave Propagation, presented at the 2009 Joint ASCE-ASME-SES Conference on Mechanics and Materials, Blacksburg, VA.
Arnab Gupta and Dr. John Duke, Jr., Detecting Fiber Breaks in Composite Materials: Modeling and Experiment, presented at the 18th Annual ASNT Research Symposium and Spring Conference, St. Louis, MO, Mar 2009.
- Continuum Mechanics
- Composite Analysis
- Wave Propagation in Solids
- Mechanics of Composite Materials
- Intro Finite Element Methods
- Theory of Plates and Shells
- Statistics in Research
- Applied Tensor Analysis
- Digital Signal Processing in Mechanical Measurements
- Advanced Musculo-Skeletal Biomechanics
- Mechanical and Structural Vibrations
- Multiscale Modeling of Damage in Composites
Instructor --- ESM 3064: Mechanical Behavior of Materials Lab
Engineering Mechanics program, Virginia Tech.
Aug 2007 to Dec 2010;
Jan to May 2017.
- Course Instructor of Record for 8 semesters and multiple lab sections each semester.
- Assessed student performance, graded laboratory reports and assigned final course grades.
- Provided theoretical foundation for experiments. Helped students with conceptual understanding of theory and practice of the experiments. Led the setting up and running of experiments by students. Mentored students with course-related questions and concerns in and out of class.
- Led students in a variety of mechanical testing experiments, including tension & compression tests using MTS and Instron universal testing machines, different hardness testing machines, Charpy notch-impact tests, fracture toughness and fatigue crack growth for metallic and polymeric specimens.