Abstract
To date, the application of composite materials has been used throughout the globe due to its advantages, such as corrosion resistance, high strength, design flexibility, and light weight. However, the joining of composite materials is usually achieved with adhesives, where debonding of parts can cause unexpected failure. Thus, detecting and locating defects due to impact or fatigue stresses at an early stage is crucial to ensure safety. Various non-destructive testing (NDT) techniques have been used to detect defects in composite structures, where this study proposes an improved approach of using one of the NDT techniques to detect and locate debonding of glass fiber epoxy plates. Here, the electromechanical impedance (EMI) technique is used with a new way of detecting defects using a movable device. This idea could reduce the overall cost of the monitoring system as the conventional EMI technique requires one to permanently attach a large number of piezoelectric transducers when monitoring large structures. The performance of the proposed idea is tested against another temporary attachment method to investigate the possibility of using the new idea for monitoring debonding in composite structures.
Highlights
Glass fiber reinforced epoxy is one of the composite materials used throughout the globe for its advantages, such as corrosion resistance, high strength, light weight, and design flexibility [1]
Various non-destructive testing (NDT) techniques have been developed for testing composite structures
A new way of conducting one of the contact methods known as the electromechanical impedance (EMI) technique is investigated
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. A new way of conducting one of the contact methods known as the electromechanical impedance (EMI) technique is investigated. The EMI technique requires one to permanently attach the piezoelectric transducer onto the target where an impedance. For large structures, it can be costly quires one to permanently attach the piezoelectric transducer onto the target where an as the sensing range of the EMI technique is small, and many. PZT transtechnique that allows one to temporarily attach a transducer to cover a large area with ducer can allow one to monitor a structure in real-time. PZT transducer to coverisadesigned large to bewith rolled onto the surface of a composite structure for detecting damage. The proposed roller device is designed to be rolled onto the surface of a composite structure for detecting
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
