Experimental strength and fracture analysis of additively manufactured continuous carbon fibre reinforced lugs with load-tailored fibre placement
Sprache des Titels:
Englisch
Original Buchtitel:
Procedia Structural Integrity 42
Original Kurzfassung:
Additive manufacturing (AM) using continuous carbon fibre (CCF) has facilitated the use of carbon fibre reinforced polymers
(CFRP) with AM in structural parts. This paper focusses on the static behaviour of AM CCF lugs printed to an optimised fibre lay-
up and with two different CCF fibre volume fractions ?, originating from variation of the layer height. Experimental testing using
full field surface strain measurement is performed. The part strength, bearing stiffness, and shaft stiffness values are evaluated. The
most significant benefit is gained in part strength, an increase by 61% with increase in ? from 0.27 to 0.37. The stiffness values are
increased to a lesser degree. Fracture behaviour is shown to be fibre fracture dominated in the net section, and linear strain increase
is reported until failure. These results show the potential of this technology for structural parts, and give the experimental base for
strength and stiffness design optimisations in AM CCF lugs.