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Measurement of the appearance and growth of tow buckling defect in the frame of complex shape manufacturing process by using fringe projection technique

Ouagne, Pierre and Soulat, Damien and Tephany, Christophe and Gillibert, Jean Measurement of the appearance and growth of tow buckling defect in the frame of complex shape manufacturing process by using fringe projection technique. (2016) Strain, 52 (6). 559-569. ISSN 0039-2103

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Official URL: https://doi.org/10.1111/str.12206

Abstract

During the manufacturing of composite complex shape parts, defects such as tow buckles characterised by out of plane elevation may appear. The parameters controlling the appearance and growth of the defect are not completely understood and need to be investigated. A device capable of reproducing tow buckles has been used to study the tow buckling phenomenon. Several techniques able to measure out of plane elevations are discussed to detect the appearance and evaluate continuously the growth of the tow buckle in relation to its size and shape. The fringe projection technique was chosen as it gives the best compromise between the size of the defect to measure and its resolution. If the in-plane bending angle is the main criterion at the origin of the tow buckle appearance and growth, it is not the only one. This work shows that the fabric architecture such as the space between the tows perpendicular to the one showing the buckle is also crucial to control the buckle’s appearance and growth. It also shows that the differential bi-axial loading of the fabric as well as the stiffness of the tows in the three main directions greatly in fluences the appearance of the defect.

Item Type:Article
HAL Id:hal-02135763
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Ecole Nationale Supérieure des Arts et Industries Textiles - ENSAIT (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
Funders:
ADEME - Region Centre
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Deposited On:29 Apr 2019 13:59

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