Advancing wireless sensing techniques for structural health monitoring of composite materials: an integrated numerical and experimental study in varied operating environments

Tamayo-Vegas, Maurico Sebastian (2023) Advancing wireless sensing techniques for structural health monitoring of composite materials: an integrated numerical and experimental study in varied operating environments. Doctoral thesis, Northumbria University.

Text (Doctoral thesis) tamayo vegas.mauricio_phd(18002002).pdf - Submitted Version Restricted to Repository staff only until 14 December 2025. Download (15MB) | Request a copy

Abstract

In today's world, human-made structures such as bridges, vehicles, buildings, and railways are ubiquitous, driving continuous advancements in materials science. Traditional materials often struggle to meet the expanding demands of these structures. However, nanotechnology offers a promising solution by enabling precise tailoring of materials with remarkable properties, including lightweight design and enhanced characteristics.

Composite nanomaterials have gained prominence in various industries over the past decades. Their unique properties make them ideal for cutting-edge applications in science and engineering. Yet, they face challenges in demanding working environments, and their susceptibility to catastrophic failure remains a concern. Unlike conventional materials like cement or steel, which exhibit warning signs such as oxidation or cracks before failure, polymer composites lack such indicators.

This research focuses on developing a contactless structural health monitoring tool to prevent catastrophic failures, with a particular emphasis on composite materials exposed to acidic environments. The study employs a comprehensive approach, combining numerical and experimental studies, to produce findings that bridge the gap between theory and practice. It integrates various disciplines, including mechanical, electrical, and electromagnetic properties, to provide a holistic understanding of material behavior.

Furthermore, this research has resulted in the creation of a cost-effective and portable prototype tool. This tool not only addresses the challenges of monitoring composite materials but also makes advanced structural health monitoring technology accessible.

While the primary focus is on acid penetration scenarios, the tool's effectiveness has been assessed in diverse environments and failure modes. The conclusions highlight that the future exploration of electromagnetic sensing technology is endless and holds promising potential for enhancing the safety and reliability of critical structures. The blend of affordability, portability, and limitless possibilities make electromagnetic sensing an indispensable tool in the realm of materials science and engineering.

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