Author(s)

A. Maslouhi

Abstract

The surveillance of critical structural components by non-destructive inspection techniques (NDI) to detect the presence of defects and/or damage initiation and growth in composite materials has long been one of the most beneficial goals of the NDI technologies. This article deals with damage monitoring in carbon/epoxy cross ply laminates submitted to static and tension-tension fatigue loading. The materials have been exposed to high temperature before being mechanically tested. The purpose of the present study was to investigate the effect of a thermal degradation of the matrix and fiber/matrix interface on the mechanical fatigue behavior of composite material. The onset and development of damage were followed by means of two complementary NDI techniques. Acoustic Emission (AE) and Acousto-Ultrasonics (AU). A

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