The mechanical behavior of a wire rope with an independent wire rope core |
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| Institution: | 1. Institute for Mechanical Systems, ETH Zürich, Leonhardstrasse 21, CH-8092 Zürich, Switzerland;2. Laboratory of Composite Materials and Adaptive Structures/IDMF, ETH Zürich, Tannenstrasse 3, CH-8092 Zürich, Switzerland;1. Faculty of Mining, Ecology, Process Control and Geotechnology, Technical University of Kosice, Park Komenskeho 14, 042 00 Kosice, Slovak Republic;2. Faculty of Metallurgy, Technical University of Kosice, Park Komenskeho 14, 042 00 Kosice, Slovak Republic;1. Jiangsu Normal University, School of Mechatronic Engineering, Xuzhou 221116, China;2. Université de Lyon, INSA-Lyon, LaMCoS, CNRS UMR 5259, Villeurbanne F69621, France;1. Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics, BP 8118 Oasis, Hassan II University, Casablanca, Morocco;2. Institut Supérieur des Etudes Maritimes (ISEM), Km 7 Route d’El Jadida, Casablanca, Morocco;3. Condensed Matter Physics Laboratory, Faculty of Sciences Ben M’Sik, University Hassan II of Casablanca, B.P. 7955 Casablanca, Morocco;1. Faculty of Transport and Traffic Engineering, University of Belgrade, ul. Vojvode Stepe 305, 11000 Belgrade, Serbia;2. Vinca Institute of Nuclear Science, Laboratory for Thermal Engineering and Energy, University of Belgrade, PO. Box 522, 11000 Belgrade, Serbia;3. Faculty of Mechanical Engineering, University of Belgrade, ul. Kraljice Marije 16, 11000 Belgrade, Serbia |
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| Abstract: | A new model for simulating the mechanical response of a wire rope with an independent wire rope core is presented. The rope is subjected to both an axial load and an axial torque. In contrast with previous models that consider the effective response of wound strands, the present model fully considers the double-helix configuration of individual wires within the wound strand. This enables to directly relate the wire level stress to the overall load applied at the rope level. The model assumes a fiber response of individual wires. Two alternative kinematics of the wires are considered, and are used to predict the elastic response of the rope. The postulated kinematics are theoretically validated and the predicted rope response is in agreement with new experimental data. The new model enables the extraction of the stress at the wire level that can be used in turn to estimate global features of the rope such as force interaction between wires, rope stiffness, strength, and fatigue life. |
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