The reduction of the breaking force of a rope exposed to a static traction force is lower than that for a rope in motion.
This is due to the transverse forces on the rope that raise the state of stress of the material and on the friction that prevents physical sliding between the strands and consequently more uniform redistribution of the tension acting on it.
The following graph shows the strength loss in a rope in motion.

Bending stiffness is an essential characteristic of each wire rope which is related to the force that the wire rope exerts when it is bent in round shape.
The bending force depends on the square diameter of the rope and on the force factor, which depends on the wire rope configuration, as indicated in the graph below.