Research Publications

The publications below reflect research in structural health monitoring, nonlinear system identification, scientific machine learning, sensor fusion, uncertainty quantification, digital twins, and smart and resilient infrastructure systems.

Prospective PhD and M.Tech students are encouraged to explore these papers to understand the group’s research style, technical foundations, and broader areas of interest.

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Journal Articles

Latching control: Experimental study on pendulum latched mass damper

Authors: Wang, Hao and Pal, Ashish and Nagarajaiah, Satish and Ke, Shitang and Zhu, Songye

Journal: Engineering Structures (2026)

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Signal-based online acceleration and strain data fusion using B-splines and Kalman filter for full-field dynamic displacement estimation

Authors: Das, Aniruddha and Pal, Ashish and Nagarajaiah, Satish and Sajeer, Mohamed M. and Mukhopadhyay, Suparno

Journal: Mechanical Systems and Signal Processing (2026)

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Physics-informed AI and ML-based sparse system identification algorithm for discovery of PDE's representing nonlinear dynamic systems

Authors: Pal, Ashish and Bhowmick, Sutanu and Nagarajaiah, Satish

Journal: Mechanical Systems and Signal Processing (2025)

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Data fusion based on short-term memory Kalman filtering using intermittent-displacement and acceleration signal with a time-varying bias

Authors: Pal, Ashish and Nagarajaiah, Satish

Journal: Mechanical Systems and Signal Processing (2024)

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Sparsity promoting algorithm for identification of nonlinear dynamic system based on Unscented Kalman Filter using novel selective thresholding and penalty-based model selection

Authors: Pal, Ashish and Nagarajaiah, Satish

Journal: Mechanical Systems and Signal Processing (2024)

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Deep Learning-Based Subsurface Damage Localization Using Full-Field Surface Strains

Authors: Pal, Ashish and Meng, Wei and Nagarajaiah, Satish

Journal: Sensors (2023)

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Subsurface damage detection via noncontact laser based surface level strain sensing smart skin with carbon nanotubes

Authors: Pal, Ashish and Meng, Wei and Bachilo, Sergei M. and Weisman, R. Bruce and Nagarajaiah, Satish

Journal: Engineering Structures (2023)

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Hybrid method for full-field response estimation using sparse measurement data based on inverse analysis and static condensation

Authors: Pal, Ashish and Meng, Wei and Nagarajaiah, Satish

Journal: Journal of Infrastructure Intelligence and Resilience (2022)

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Next-generation 2D optical strain mapping with strain-sensing smart skin compared to digital image correlation

Authors: Meng, Wei and Pal, Ashish and Bachilo, Sergei M. and Weisman, R. Bruce and Nagarajaiah, Satish

Journal: Scientific Reports (2022)

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Peak Factor--Based Modal Combination Rule of Response-Spectrum Method for Peak Floor Accelerations

Authors: Pal, Ashish and Gupta, Vinay K

Journal: Journal of Structural Engineering (2021)

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A note on spectral velocity approximation at shorter intermediate periods

Authors: Pal, Ashish and Gupta, Vinay K

Journal: Soil Dynamics and Earthquake Engineering (2021)

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Conference Papers

Modal Identification and Damage Detection of Railway Bridges Using Time-Varying Modes Identified from Train Induced Vibrations

Authors: Pal, Ashish and Gaur, Astha and Mukhopadhyay, Suparno

Conference: Model Validation and Uncertainty Quantification, Volume 3: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020 (2020)

Books / Book Chapters

Deep Learning for Image Segmentation and Subsurface Damage Detection Based on Full-Field Surface Strains

Authors: Pal, Ashish and Meng, Wei and Nagarajaiah, Satish

Book: Proceedings of the Society for Experimental Mechanics Series (2023)

Next-Generation Non-contact Strain-Sensing Method Using Strain-Sensing Smart Skin (S4) for Static and Dynamic Measurement

Authors: Meng, Wei and Pal, Ashish and Bachilo, Sergei M. and Weisman, R. Bruce and Nagarajaiah, Satish

Book: Model Validation and Uncertainty Quantification, Volume 3 (2023)

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arXiv Preprints

KAN/MultKAN with Physics-Informed Spline fitting (KAN-PISF) for ordinary/partial differential equation discovery of nonlinear dynamic systems

Authors: Pal, Ashish and Nagarajaiah, Satish

arXiv: (2024)

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