How much is the capacity of fiber rope reduced when a knot or bend is used?

The correct answer indicates that the capacity of fiber rope can be reduced by 50% when a knot or bend is used. This significant reduction occurs because knots create stress concentrations and can lead to localized weaknesses in the rope. When a knot is tied, there is a greater chance for the fibers of the rope to become damaged or to not align properly, which affects the overall strength and capacity to bear weight.

Rope manufacturers and industry standards often acknowledge this reduction in capacity because it is critical for safety and reliability in any application involving lifting or securing loads. Understanding this reduction is essential for professionals who work with fiber ropes, as it directly impacts load calculations and safety measures. Proper training and awareness of the effects that knots have on rope capacity help to prevent accidents and ensure proper handling of materials.