Principles and Applications of Microwave Testing for Woven and Non-woven Carbon Fibre-reinforced Polymer Composites: A Topical Review

Constantinos Soutis, Zhen Li, Arthur Haigh, Andrew Gibson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Carbon fibre-reinforced polymer (CFRP) composites have been increasingly used by aerospace and other industries for their high specific stiffness and strength properties. When in service, non-destructive testing (NDT) methods are required to monitor and evaluate the structural integrity. Microwave-based detection techniques offer the advantages of non-contact, no need for a coupling medium or sensors bonded to the object surface and relatively easy setup. This paper is intended to provide a comprehensive overview of the currently available microwave techniques appropriate for carbon fibre/polymer composites. The electromagnetic properties of carbon fibre composites associated with microwave testing are discussed first. Then, the microwave methods are categorised into self-sensing methods, near-field induction methods, near-field resonance methods, far-field sensing methods and the methods with combination of other NDT (e.g., microwave-based thermography). Principles and applications of each kind are demonstrated in detail. Discussions of the advantages and limitations in addition to research trends of microwave testing methods are presented.
    Original languageEnglish
    JournalApplied Composite Materials
    Early online date9 Aug 2018
    DOIs
    Publication statusPublished - 2018

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