Abstract
Acousto-ultrasonics represents a very attractive and promising technique for detecting flaws and studying degradation of composite material. Studies of damage under hydrothermal ageing incurred by random fibre-reinforced laminates have been carried out with this technique. It is shown that the “stress wave factor” is a sensitive indicator of random fibre composite strength reduction due to a hydrothermal effect. The same study can be used for the estimation of strength from the data generated under accelerated conditions.
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