Damage detection in composite materials using deflectometry, a full-field slope measurement technique

This paper presents a method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a “signature” in the form of surface slopes. The first part of the paper presents the experimental procedure: material, lay-up and sample types, then the set-up and data extraction are detailed followed by the finite element (FE) models. Finally the results are presented and commented.