Drilling of composite structures

By F. Lachaud, R. Piquet, F. Collombet, Laurent Surcin. 2001

221 citations recorded by the source corpus.

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Drilling of polymer matrix composites: A review (2013, background): “Lachaud et al.22 proposed a model that links the axial penetration of the drill bit to the conditions of delamination (crack opening Mode I) of the last few plies.”
Recent advances in drilling hybrid FRP/Ti composite: A state-of-the-art review (2016, background): “Generally, the drilling-induced damage of the FRP phase can be classified into the following categories: geometric defects, temperature-related damage, delamination at drillentry and drill-exit [67].”
Modeling and tool wear in drilling of CFRP (2010, unknown): “The delamination phenomenon has been extensively described in the literature [11,12,14–16,24,25] and depends significantly on the axial load applied to the material and the mechanical characteristics of the remaining material to drill (the final plies of the laminate) [11,12,14–16,24,25].”
Drilling tool geometry evaluation for reinforced composite laminates (2010, background): “[10] considered that a normal stress is applied to the ply surface and modeled the uncut plate under the drill as a thin orthotropic plate clamped on the laminate surface.”
Assessment of delamination in composite materials: A review (2016, background): “Lachaud et al.(9) classify the drilling defects on composite materials into four categories: peel-up delamination, push-out delamination, geometric defects and thermal damages.”