Abstract
Multiaxial constant loading rate tests of wound GFRP composite tubes have been performed, with various axial/hoop stress ratio, combining internal pressure and tension. Ultrasonic C-scans were recorded before and after loading to compare damage levels determined by mechanical (decay of elastic moduli), ultrasonic and optical methods. During the tests, the acoustic emission signals from six AE transducers were analyzed. AE sources were localized by an artificial neural network aimed at the data obtained from directional wave velocity diagrams of an anisotropic tube. The planar distributions of AE sources are related to the ultrasonic map changes.
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