Breaking failure analysis and finite element simulation of wear-out winding hoist wire rope
| Autor: | Chun-ming Xu, Xiansheng Gong, Zhencai Zhu, Yuxing Peng, Chang Xiangdong, Mi Zhentao, Zhangfa Yu |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Engineering 020101 civil engineering Wire rope 02 engineering and technology engineering.material Finite element method 0201 civil engineering 020303 mechanical engineering & transports 0203 mechanical engineering Ultimate tensile strength engineering General Materials Science Hoist (device) Composite material Severe plastic deformation human activities Tensile testing Stress concentration Rope |
| Zdroj: | Engineering Failure Analysis. 95:1-17 |
| ISSN: | 1350-6307 |
| DOI: | 10.1016/j.engfailanal.2018.08.027 |
| Popis: | Surface wear is the main reason for the breaking failure of the wire rope in service, particularly in the multi-layer winding hoist system of a coal mine. Understanding the effect of wear scars on the failure and mechanical properties of the rope is the effective way to ensure the safety of multi-layer winding hoist. In this paper, the breaking failure characteristics of hoist ropes with different wear scars were investigated by the breaking tensile test. The temperature rise in the wear scar regions was obtained and analyzed. Additionally, the finite element method was used to simulate the mechanical properties of the wear-out strands subjected to tensile load. Results show that the severe plastic deformation and obvious temperature rise occur in the wear scar region. The temperature rise curves during the breaking tensile test can reflect the number and the order of the fractured strands. The wear-out outer wires fracture earlier than the internal wires, and the wires with irregular wear scar always fracture along the sliding wear direction at the location with the maximum wear depth. Additionally, the wear scar caused by left cross contact will cause stress concentration and uneven distribution, and the wear depth makes it more obvious. |
| Databáze: | OpenAIRE |
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