Authors:
T. Anand, S. Kevin Bennett, Amarilys González García, M. Sakthivanitha, G. Sasipriya

Addresses:
Department of Aeronautical Engineering, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India. Department of Research and Development, Placental Histotherapy Center, Playa, Havana, Cuba. Department of Information Technology, Vels Institute of Science Technology and Advance Studies, Chennai, Tamil Nadu, India. Department of Computer Science, SRM Institute of Science and Technology, Ramapuram, Chennai, Tamil Nadu, India.

Abstract:

Safe, reliable, and cost-effective engineering structure maintenance has increased the need for sophisticated Structural Health Monitoring (SHM) methodologies supported by high-fidelity numerical models. COMSOL Multiphysics Finite Element Analysis (FEA) is used to analyse the structural integrity and dynamic behaviour of essential load-bearing components in this SHM architecture. The suggested method captures stress distribution, deformation properties, and vibration response under realistic operational loading conditions to identify damage-prone zones and detect performance degradation early. A precise three-dimensional finite element model simulates material behaviour, boundary constraints, and external excitations. To determine natural frequencies, mode shapes, and stress concentration zones necessary for fatigue initiation and fracture propagation, modal analysis, static structural analysis, and harmonic response simulations are performed. The numerical results reveal the relationship between structural response parameters and damage mechanisms, providing a solid SHM baseline. COMSOL-based simulations identify appropriate locations for strain and vibration sensors, aligning with SHM principles. This integration improves damage sensitivity and reduces monitoring redundancy. The study shows that physics-based numerical modelling and SHM techniques improve the prediction of structural performance, service-life assessment, and condition-based maintenance decisions. The scalable, flexible real-time health assessment system for complex engineering structures improves operational safety, reduces downtime, and extends structural longevity.

Keywords: COMSOL Multiphysics; Modal Analysis; Vibration Analysis; Stress Distribution; Damage Detection; Finite Element Analysis (FEA); Structural Health Monitoring (SHM).

Received on: 08/11/2024, Revised on: 15/01/2025, Accepted on: 05/03/2025, Published on: 07/12/2025

DOI: 10.69888/FTSSM.2025.000573

FMDB Transactions on Sustainable Structures and Materials, 2025 Vol. 1 No. 2, Pages: 70-78

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