On the Problem of Wire Rope Model Generation with Axial Loading

Abstract

Independent wire rope core (IWRC) is one of the fundamental components of complex wire ropes. It is a complex geometry and constructed by wrapping wire strands over a straight wire strand. The outer wires of the IWRC are double helical shaped feature which can be only modeled using special treatment. The aims of this paper are to introduce a new technique of modeling wire rope with IWRC and to compare numerical results obtained from this model with available results in the literature. Therefore the model generation for a simple straight strand is explained and accuracy of this model is validated. Furthermore this modeling procedure is adapted to whole wire rope structure considering double helical geometry concept. The proposed rope model gives remarkable results by means of wire by wire analysis scheme. This model is found easier and more effective. The results show good agreement with other available results but with a simpler and more practical approach.

Parametric modeling and comparative finite element analysis of spiral triangular strand and simple straight strand

“…To analyze the elasto-plastic behavior of the cold drawn steel wire, a material with von Mises yield criterion and bilinear isotropic hardening is defined in the FE analysis software ANSYS. The material widely used in previous studies [12,14] are applied to the above two kinds of strands: the Young's modulus E = 188 GPa, the Poisson's ratio υ = 0.3, the yield stress σ 0.2 = 1.54 GPa, the plastic modulus E p = 24.6 GPa and the ultimate tensile stress σ u = 1.8…”

“…Their model is time-saving because only a sector of the strand needs to be meshed in FE analysis, while its application is limited due to the complicated constraints for the FE model. By using computer-aided design software, Imrak et al [14][15][16] presented a modeling technique of the double helical wire rope. They also conducted FE analyses for axial tensile load condition in which the elasto-plastic property of the strand material, frictions and contacts between the wires are involved.…”

Analytical and finite element modelling of the elastic–plastic behaviour of metallic strands under axial–torsional loads

“…More recently, proce-25 dures for developing full three-dimensional (3D) elastic-plastic FE models of metallic strands have been proposed e.g. by Judge et al [17] and by Yu et al [30], while Imrak and Erdönmez [12] adopted the FE method to study wire ropes with complex cross sections under the assumption of elastic-plastic material behaviour. Due to their huge computational cost, however, rich FE models cannot be successfully applied for 30 simple calculations or large-scale structural analyses, which are typical of engineering applications.…”

Study on Multicharacteristic of Antirotation Wire Rope Based on Linear Stiffness Coefficient

“…According to [4,17], substitute the expression of and in (11) and (7) The bending moment of strand in th strand can be expressed as = ( − ), according to [2,18], by using Taylor Formula in (A.3) and the linear expression of Δ and Δ in (12) and (13) can be written as = 0 + , where…”