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

Chen, Yuanpei; Meng, Fanzhi; Gong, Xinglong

doi:10.1016/j.advengsoft.2015.06.011

Cited by 36 publications

(8 citation statements)

References 28 publications

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“…Meanwhile, the results of the strand with lay angle of 24° are respectively 0.00628 and 0.00626, between which the relative error is 0.3%. To sum up, the comparison of the results show that there is a good agreement between the results with present study and literature, 37 and the present finite element model can be used for the fatigue behavior analysis of the wire rope strand.…”

Section: Model Verificationsupporting

confidence: 86%

“…A Cartesian coordinate system ( x , y , z ) is established with the origin O at the central point of the middle cross-section A-A of the strand, and the z axis coincides with the strand axis. As shown in Figure 1(b), the profile of an outer wire in the middle cross section is an approximate ellipse, 37 of which the major and minor axes are d 1 /cos β and d 1 , respectively.…”

Section: Theoretical Modelingmentioning

confidence: 99%

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Low-cycle tensile fatigue performance of a wire rope strand with an internal flaw in varied position and direction

Chen

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Taking into account the effects of mean stress, elastic-plasticity and nonlinear contact, the finite element model of the tensile fatigue performance of an internal flawed wire rope strand is built by using the local stress strain method in the present study. A mesh model of the strand with a high-precision feature is established through a block-based method and refinement in the flaw region. The strand with a flaw is investigated to explore its fatigue life distribution, and the effects of the flaw’s position and direction on the strand’s fatigue and bearing performances are analyzed. The numerical results demonstrate that the low-cycle fatigue life zone occurs at the interwire contact region of the intact wire rope strand, while is located at the flaw region of the wire rope strand with an internally flawed wire. The minimum fatigue life of the wire rope strand decreases due to the occurrence of the internal flaw. Moreover, as the internal flaw’s direction angle decreases, the strand’s minimum fatigue life is reduced, and the internal flaw with the major axis perpendicular to the strand axis is the most dangerous. The internal flaw in the outer wire has a more severe influence on the fatigue property of the wire rope strand than a core wire flaw with the same dimension and direction. The wire rope strand is more prone to stress yielding due to the internal flaw, and the effect is getting more significant as the internal flaw’s direction angle decreases.

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Section: Model Verificationsupporting

confidence: 86%

Section: Theoretical Modelingmentioning

confidence: 99%

Low-cycle tensile fatigue performance of a wire rope strand with an internal flaw in varied position and direction

Chen

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Static and dynamic analyses were conducted using ABAQUS and ADAMS simulation software. Chen et al 13 considered the frictional contact between wires. Parametric modeling and performance determination for elliptical and triangular strand wire ropes with right twist were conducted.…”

Section: Introductionmentioning

confidence: 99%

Distributions of stress and deformation in a braided wire rope subjected to torsional loading

Song

Wang

Cui

et al. 2018

The Journal of Strain Analysis for Engineering Design

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Braided wire rope is vital for stringing conductors with tension in overhead transmission lines. Its structure and characteristics determine the safety and reliability of the stringing construction. Torque generated in this process can cause an uneven stress distribution, ultimately causing the wire rope to fail. This study analyzes distributions of stress and deformation in braided wire rope subjected to torsional loading. A geometric model for YS9-8 3 19 braided wire rope was established, and finite element analysis was performed on the model in different twisting directions. The simulation results show that the wires in the strands have the tendency to be screwed tightly and are in a stretched state when the lay direction of the strand coincides with its torsion direction. However, when the lay and torsion directions are opposite, the wires in the strands tend to unwind and are in a compressed state. At the same torsional angle, different torques can be generated at a particular cross-section along different twisting directions. This shows that braided wire rope has better anti-twist characteristics when twisted clockwise compared to when twisted anticlockwise. Finally, a torsion test was conducted on the braided wire rope. The results show that the change in the torque curve with respect to the torsional angle is in good agreement with the simulation results.

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“…Figure 14 shows the model of the seven-wire strand in ANSYS [28]. The damage model [29,30] of the material adopts the ductile fracture criterion. The damage initiation (Equation (15)) and evolution standard (Equation (16)) of the seven-wire strands is obtained according to [31]:…”

Section: Ultimate Tensile Strength Of the Seven-wire Strands Under Lamentioning

confidence: 99%

A Study on the Strength and Fatigue Properties of Seven-Wire Strands in Hangers under Lateral Bending

2020

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Hangers are important tensile members in half-through arch bridges and through arch bridges (HTABs and TABs). The floating deck structures of HTABs and TABs will commonly produce longitudinal deformation and rotate under the effect of temperature and the temperature gradient, which will cause bending deformation at anchorages of fixed-end hangers. This bending deformation can generate adverse bending stress for hangers and decrease the strength and fatigue properties of the seven-wire strands in the hangers. Firstly, theoretical derivation and finite element analysis are conducted to study the bending stress of hangers that is caused by bending deformation. We find that bending stress of hangers is mainly generated by lateral bending caused by the difference in longitudinal displacement at both ends of the hangers under the effect of temperature. Subsequently, the ultimate tensile strength of the seven-wire strands under lateral bending is obtained by FEM and an experimental study. The ultimate tensile strength of the seven-wire strands could decrease by 23.3% when lateral bending is considered. Moreover, the relationship between the fatigue properties of the seven-wire strands and lateral bending is obtained based on observing the ultimate tensile strength under lateral bending. Lateral bending significantly influences the fatigue properties of the seven-wire strands. When the lateral bending angle reaches about 50 mrad, the fatigue resistance of the seven-wire strands drop by almost 40%. The considerable decrease in the strength and fatigue properties of the seven-wire strands indicates that lateral bending has a significant adverse influence on hangers that consist of seven-wire strands. Finally, it is advised to use the tied arch structure for HTABs and TABs to mitigate the adverse influence of lateral bending on hangers.

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

Cited by 36 publications

References 28 publications

Low-cycle tensile fatigue performance of a wire rope strand with an internal flaw in varied position and direction

Low-cycle tensile fatigue performance of a wire rope strand with an internal flaw in varied position and direction

Distributions of stress and deformation in a braided wire rope subjected to torsional loading

A Study on the Strength and Fatigue Properties of Seven-Wire Strands in Hangers under Lateral Bending

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