Infrared thermography to inline monitoring of glass fibres composites under impact and quasi-static bending tests

摘要

This work would bear witness for the benefits of using infrared thermography during characterization of composite materials. Specimens made of glass fibres embedded in either a thermoset, or a thermoplastic, matrix are considered and subjected to mechanical tests: impact and quasi-static bending. Impact tests are performed with a modified Charpy pendulum, while quasi-static bending with a standard three point testing configuration setup. An infrared camera views the specimen surface opposite to the load application and acquires sequences of thermal images at a given frame rate. The acquired sequences are later post-processed to get information about damage initiation and propagation.