Modeling of Synthetic Fiber Ropes Deterioration Caused by Internal Abrasion andTensile Fatigue

摘要

In the study models have been formulated for prediction of service life ofsynthetic fiber double braided rope based on geometrically ideal rope structures. Two experimentally determined rope deterioration factors have been considered: tensile creep induced fatigue and wear/abrasion behavior of constituent fibers. Model based predictions agree reasonably well with tensile fatigue tests conducted at high loading levels as well as in an extended low load test series. At the high loads, tensile creep dominates, while at the low cycling tensions internal wear determines rope life. The model is designed to treat both deployment conditions and gives insight to the interaction of tensile fatigue, wear, and the structural mechanics of rope.