Study on the Tensile Properties of the High-Performance Cored Rope
The tensile property of two-dimensional (2-D) braided cored ropes with high-performance is investigated and found that braiding angle has an evident fluence on the tensile characteristic.In the skin-core structure, the core yarns are straight and parallel with each other ,and have a larger percentage than those in other style of cored rope. The tensile strength and breaking elongation of the samples with different braiding angle is tested by Shimadzu universal testing machine. The load-displacement curves of the rope are drawn and analyzed. It shows that of the tensile fracture mechanism is different from the other structural ropes, and the straight state of the core yarns leads to higher utilization of fiber strength. The results also indicate that braiding angle has a great influence on the strength and breaking elongation of cored rope. In the five samples, the sample with 30°has the both ideal tensile strength and ideal elongation. Beyond the angle, the greater braiding angle is, the much more closely the core yarns are wrapped. The greater friction between fibers of core yarn decreased motion of the fiber in core yarn, some of them was fractured before all the yarns were straighten. The utilization of the braiding yarn fiber strength decreased.
Rui Wang and Huawu Liu
Q. J. Zhao and Y. N. Jiao, "Study on the Tensile Properties of the High-Performance Cored Rope", Advanced Materials Research, Vol. 331, pp. 210-213, 2011