Hybrid Composite Cable Based on Steel and Carbon
Keywords:hybrid composite cable, steel wire strands, carbon fiber composite cable.
Combination of steel and carbon enables to obtain a hybrid composite cable with increased strain in comparison with the carbon composite cables and decreased dead weight in comparison with the steel cables.
Hybrid composite cable contains three layers: carbon fiber composite cable (CFCC) core, glass fiber reinforced plastic (GFRP) and steel wire strands. CFCC core and steel wire strands take up tension stresses, acting in the cable during the exploitation. The functions of GFRP are distribution of transversal pressure of steel wire strands at the carbon fiber core, and taking up of tension stresses.
Volume fractions of steel and carbon are determined basing on the assumption, that in an emergency, when the strain of carbon fiber exceeds the ultimate value and these fibers are disrupted, strands of steel wire must be able to take up tension stresses, acting in the cable.
The principle of hybrid composite cable work was illustrated on the example of separate cable. Opportunity to decrease dead weight of the cable is stated.
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