Abstract
Taking the wire rope of 1×7+IWS structure as the research object, the influences of the number of broken wires on the stress distribution under the same axial load were simulated and analysed, and it also explored the rule of wire breaking of steel wire ropes. Based on the SolidWorks software, the three-dimensional model of the wire rope was established. Importing the model into the ABAQUS, the finite element model of the steel wire rope was established. Firstly 5000 N axial tension was placed on the rope, the stress distribution was simulated and analysed, and the steel wire with the largest stress distribution was found out. Then one steel wire was truncated with the load unchanged, and the finite element simulation was carried out again, and repeated the steps several times. The results show that, with the increase of the number of broken wires, the Von-Mises stress of the wire rope increases sharply, and the stress distribution is concentrated on the rest of the unbroken wires, which brings great challenges to the safety of the wire rope.
Highlights
The wire rope is widely used in industrial production and daily life, its performance has important influence on the safety [1]
At the same time in the process of ascension, due to wear, corrosion, fatigue, impact and other reasons[3], the wire rope is easy to occur the phenomenon of wire breaking .In the fracture failure process of wire ropes, the number of broken wires increases gradually, until the whole wire rope breaks
Li Lunyou analysed the reasons of failure of 6*36sw-25.0mm steel wire rope for field bridge through the electron microscope observation[4]
Summary
The wire rope is widely used in industrial production and daily life, its performance has important influence on the safety [1]. The steel wire rope is of space spiral structure which is very complex, the traditional stress analysis can not accurately solve the mechanical properties [2]. Li Lunyou analysed the reasons of failure of 6*36sw-25.0mm steel wire rope for field bridge through the electron microscope observation[4]. Hu Zhihui studied the failure mechanism of double broken line type multilayer winding steel wire rope[8]. In this paper, taking 1×7+IWS steel wire rope as the research object, using the finite element analysis software. Twist length (7.05mm)of the wire rope was intercepted as the research object, which was imported directly into ABAQUS software through the SolidWorks and ABAQUS plug-in interface. The friction coefficient between the steel wires was defined as 0.1 [13], and the friction type is penalty function
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