Interwire wear and its influence on contact behavior of wire rope strand subjected to cyclic bending load
Interwire wear and its influence on contact behavior of wire rope strand subjected to cyclic bending load
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DOI：
10.1016/j.wear.2016.10.020
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发表时间：
2016-12-15
期刊：
影响因子：
5
通讯作者：
Gong, Xiansheng
中科院分区：
文献类型：
--
作者：
Chen, Yuanpei;Meng, Fanming;Gong, Xiansheng
建立了同时考虑钢丝间摩擦接触和滑动的循环弯曲载荷作用下钢丝绳绞线间磨损演化的求解模型。通过钢丝间磨损试验研究了钢丝的磨损行为。同时，对该模型进行了实验验证。然后分析了钢丝间的磨损及其对钢绞线接触性能的影响。结果表明：钢丝间的磨损只发生在离弯曲线曲率中心较远的一侧，而在钢丝分开或钢丝间滑移为零时，钢丝间不发生磨损；随着磨损过程的进行，磨损区域仅沿着芯线接触线的法线方向延伸，最大磨损深度出现在中性层和离曲率中心最远的中间位置。接触压力沿接触线法向分布均匀，但在离弯曲股的曲率中心最远的位置发生明显的应力集中和局部变形。(C) 2016 Elsevier B.V.版权所有
The present study establishes a solving model for analyzing the interwire wear evolution of a wire rope strand subjected to cyclic bending load, in which the frictional contact and sliding between the wires are considered simultaneously. A wear experiment between the wires is conducted to study the wear behavior of the wires. Meanwhile, the proposed model is verified experimentally. Then the interwire wear and its effect on the contact behavior of the strand are analyzed. The results show that the interwire wear only happens on the side further from the curvature center of the bended strand than its neutral layer, and no wear happens when the wires are apart from each other or the interwire slippage is zero. As the wear process goes on, the wear region extends only along the normal direction of the core-wire contact line, and the maximum wear depth occurs at the middle position between the neutral layer and the furthest location from the curvature center. The contact pressure is distributed uniformly along the normal direction of contact line, but a significant stress concentration and local deformation happen at the position furthest from the curvature center of the bended strand. (C) 2016 Elsevier B.V. All rights reserved.