Bearing Failure of Pseudo-ductile Thin Ply Angle-ply Laminates

Wu, X., Fuller, J.D., Fotouhi, M. and Wisnom, M. (2018) Bearing Failure of Pseudo-ductile Thin Ply Angle-ply Laminates. In: 18th European Conference on Composite Materials (ECCM 18), Athens, Greece, 24-28 June 2018,

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The aim of this work is to investigate the bearing failure of mechanically fastened joints between thin-ply angle-ply laminates with central 0° plies. To achieve this, pseudo-ductile laminates with two different layups [±266/0]s2 and [±252/0]s4 were loaded in a double shear-lap bolted joint configuration in tension. The major focuses of the experiments were to investigate the bearing strength and compare the bearing behaviour between pseudo-ductile laminates with different layups. Constant clamping pressure, edge distance-to-diameter ratio and width-to-diameter ratio were selected across the tests. Although gradual failure was exhibited in both layups, the [±266/0]s2 laminate has shown a higher bearing strength and larger deformation at the hole edge compared to the [±252/0]s4 laminate. The damage mechanisms of both layups were also similar, in the sequence of compressive damage at the hole edge, splitting in angle plies, tensile fracture and tear-out failure.

Item Type:Conference Proceedings
Additional Information:This work was funded by the UK Engineering and Physical Sciences Research Council (EPSRC) ACCIS Centre for Doctoral Training in Advanced Composites (grant number EP/G036772/1) and under the EPSRC Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College, London.
Glasgow Author(s) Enlighten ID:Fotouhi, Dr Mohammad
Authors: Wu, X., Fuller, J.D., Fotouhi, M., and Wisnom, M.
College/School:College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
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