Primary principal composite structure repair with multi-instrumented technological evaluator tool box

Francis Collombet (1) , Laurent Crouzeix (1) , Y.-H. Grunevald , H. Zeng , Yves Davila (1) , Bernard Douchin (1) , A. Gillet

1 ICA - Institut Clément Ader

This paper introduces a methodology to solve opened issues associated to “on field” large repair of primary principal structures for composites. If a repair is mandatory, it leads to a costly immobilization. Structural damage needs a “case by case” solution including design, calculation phases, damaged zone removal, patch construction, set-up and finishing. Furthermore composite solution needs to be considered with its real “industrial” variabilities and with a continuous link between all scales (from micro scale to structure scale). To address such challenges, Multi-Instrumented Technological Evaluators (MITEs) Toolbox is developed in order to restitute the representative working conditions of repair areas in industrial structures. Thanks to multi-axial modular test device, multi-axial loadings are chosen for placing the repair zone under a chosen representative strain fields. Results are discussed through comparison between experimental data and FE models results for several Multi-Instrumented Technological Evaluator types.

Domaines: Matériaux et structures en mécanique [physics.class-ph]

Francis Collombet, Laurent Crouzeix, Y.-H. Grunevald, H. Zeng, Yves Davila, et al.. Primary principal composite structure repair with multi-instrumented technological evaluator tool box. ECCM15 - The 15th European Conference on Composite Materials, Venice (Italy), June 24-28, 2012, Venice, Italy. ⟨hal-02186850⟩