A Novel Method for Monitoring Structural Metallic Materials Using Microwave NDT

  • B. M. Abdullah
  • J. Cullen
  • A. Mason
  • A. I. Al-Shamma’a
Chapter

Abstract

This book chapter describes a preliminary study carried out using EM wave technology within the microwave region to detect defects in metallic materials, such as materials used in building structures and vehicle platforms. The measurement system used in this research study makes use of the low power microwave energy over the frequency range of 300 MHz and 6 GHz. Main metallic defects such as cracking and corrosion in metal sheets are studied extensively in this research study. However, the system can also be used to detect other defects such as weld bead defects. The proposed EM wave NDT (Non-Destructive Testing) system will be integrated into a wide variety of structural elements (e.g. automotive and construction) and will provide continuous real-time structural health monitoring of the materials. The system will be able to provide information related to the presence, type and location of damage or defects. Two sensors are presented here for defect detection and monitoring; a rectangular patch structure and an interdigitated electrode structure. Experimental results demonstrate that the presence of defects such as cracks near the surface of the sensor elicit a change in sensor response.

Keywords

Microwave NDT Corrosion Cracking Structural monitoring Patch sensor Interdigitated electrode (IDE) sensor Microwave sensor Metallic defects 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • B. M. Abdullah
    • 1
  • J. Cullen
    • 1
  • A. Mason
    • 1
  • A. I. Al-Shamma’a
    • 1
  1. 1.Built Environment and Sustainable Technologies (BEST) Research InstituteLiverpool John Moores UniversityLiverpoolUK

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