University of Cambridge > Talks.cam > Surfaces, Microstructure and Fracture Group > The use of chirped fibre Bragg grating sensors to monitor disbond growth in bonded composite structures

The use of chirped fibre Bragg grating sensors to monitor disbond growth in bonded composite structures

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The growth in the use of composite materials, and the development of more reliable bonding techniques, has led to a desire to reduce the weight of composite structures by using adhesive bonding. However, the integrity of an as-manufactured bonded joint, and the in-service performance of such a joint, is difficult to monitor. The use of embedded optical sensors based on chirped fibre Bragg gratings (CFBGs) will be described, a method which enables both poor adhesive bonds to be detected and the initiation and growth of fatigue damage (in the form of disbonding – also called delamination) to be monitored.

This talk is part of the Surfaces, Microstructure and Fracture Group series.

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