Bearing strength prediction by cfrp and ffrp damage onset criteria for riveted joints

Abstract

<p>Fasteners are a typical method for providing load transfer between different parts. The current interest by the industry is to use natural fibres, such as flax, in composite laminates. The failure modes in flax fibre reinforced plastic (FRP) composite joints are clearly less known. This work studies the damage onset of a fastener joint using three-dimensional finite element models. The damage onset is analysed using the Hashin 3D and Puck’s failure criterion. In the analysis, carbon and flax FRP joints are simulated. The analyses remark that the Puck criterion’s parameters have an influence on the damage onset and specific parameters are needed for the flax FRP in joints.</p>