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Research and Development Engineer based in the Washington, D.C. Metro Area. We develop and implement novel Non-Destructive Evaluation (NDE) technology for diverse engineering applications.
- Ph.D. in Engineering Mechanics, specializing in the NDE, damage evolution and wave mechanics of anisotropic materials. Experienced in analyzing the health and future degradation of fiber reinforced composites.
- Extensive experience in data and statistical analysis applications in automotive safety research at the Virginia Tech Transportation Institute (VTTI), USA’s premier transportation research center.
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.
Improve the identification and diagnosis of internal structures and patterns in complex anisotropic systems, including engineering and biomedical applications.
Wave propagation and Ultrasonic Testing methods in anisotropic media, Acoustic Emission (AE), Structural Health Monitoring. Improve understanding of performance, health state and failure of in-service components.
Biomedical applications of engineering health monitoring ideas. Leverage biometric data collection from large groups of participants, and extend engineering data analysis and modeling principles, to conduct health studies and make predictions about future health risks. Develop and improve computation and visualization tools for such applications.
Experiments: Study composite specimens, with different ply-layups, under monotonic tensile load and slow speed cyclic load, to monitor damage development and health state.
Signals / Sensors: Acquire signals from natural AE waves and simulated Pencil Lead Break sources using two piezoelectric ultrasonic sensors simultaneously.
Data Analysis: Implement statistical and data analysis techniques (e.g. Cluster Analysis, Wavelet Analysis) using MATLAB software to analyze ultrasonic stress wave signals.
Graduate Research Assistant
Relevant Skills: MATLAB, Mercurial, SQL, database handling, technical writing. Applying data processing and computer programming skills to a wide variety of research problems in transportation safety, human factors engineering and connected vehicle systems.
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.
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.
- 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.
- Research. Experienced in data and statistical analysis, signal processing, database handling, engineering laboratory work and mechanical testing experiments and computer programming.
- Programming. MATLAB, Mathematica, C/C++, Object Oriented Programming (OOP), Shell-Scripting. Familiar with Python, Perl.
- Software. SQL, HTML5 and CSS3, LaTeX and BibTeX, version control systems such as Mercurial. Familiar with image editing and usual Windows and Mac software.
- Operating Systems. macOS, Windows, 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.
- 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
Awards and Grants
- Pratt Presidential Fellowship from ESM Department, Virginia Tech, 2007-08
- American Society for Nondestructive Testing (ASNT) Graduate Fellowship, 2008
- ASNT Graduate Travel Grant, 2009
- ASNT Graduate Travel Grant, 2011
- ASNT Graduate Travel Grant, 2014
- Virginia Tech Graduate Student Assembly (GSA) Travel Grant, 2014
- Served as panel jury member with the Graduate Honor Society (GHS) at Virginia Tech.
- Served as reviewer for Society for Automotive Engineers (SAE) technical papers.
- 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, who was then appointed by the University President.
Instructor (serving as Graduate Teaching Assistant)
Engineering Mechanics program, Virginia Tech.
Aug 2007 to Dec 2010;
Jan to May 2017.
Instructor of Record for ESM 3064: Mechanical Behavior of Materials lab for 8 semesters and multiple lab sections each semester. Responsible for assessing student performance, grading lab reports and assigning final grades.
Provide theoretical foundation for experiments. Help students with conceptual understanding of theory and practice of the experiments. Lead the setting up and running of experiments by students.
Mechanical testing experiments involved using, among others, Instron and MTS universal testing machines, different hardness testing machines, and Charpy notch-impact testing machines.