Finite element modelling of hybrid strands consisting of steel outer wires and carbon fibre reinforced plastic core
Weight reduction in ropes can be realised by the hybridisation of steel wire ropes with non-metallic carriers in order to increase strength-to-weight ratio and improve the efficiency of hoisting processes, most notably in deep shaft mining and deep sea offshore applications. While this has been attempted by replacing central steel cores with load bearing fibre cores, the investigation presented by this paper has demonstrated that the Young’s modulus and tenacity of a strand can be increased by replacement of the central wire with a carbon fibre/vinyl rod. Finite element modelling of strands with a range of non-metallic core materials confirmed the suitability of carbon fibre reinforced plastics with respect to unreinforced plastics as a means of increasing the tenacity of hybrid strands. This study on a seven-wire strand is presented as a starting point for the further development of a hybrid rope.
Author(s): A. Ratner, P. Wang