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Strength of a Rubber Cable Stay with Defects in its Connection to a Structure

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Strength of Materials Aims and scope

Formulation of a method for the strength design of a rubber cable stay with defects in its connection to a structure. Solving the model of interaction of discrete cables joined by rubber, taking into account the break in the continuity of the cables in the stay connection assembly and the nonlinearity of deformation of stay components. A method for the strength design of a rubber cable stay with a connection defect under the nonlinear deformation of its components. The stay in the structure is subjected to significant loads. It is mostly composed of a system of parallel pulling elements. These can be cables. In general, there can be several defects in the connection, but less than the number of cables. A defect in the connection of the stay to the structure is manifested in the redistribution of forces between the reinforcement elements – cables. A cable connection defect is considered to be a connection for which the cable load is zero (the maximum possible consequence of a single defect). A method for determining the stress-strain state of a stay rope with defects at which the loads of several cables in the connection cross-section are equal to zero. A break in the continuity of a stay cable significantly affects the stress state of adjacent cables and the material, interacting with it, over a limited length. The number of cables adjacent to the damaged ones affects the level of stress increase. At a smaller number, the stresses increase more. The nonlinear nature of the ratio of the shear modulus of the matrix material and the tensile elastic modulus of the cables practically does not affect the size of the zone of perturbation of the cable’s stress state in the event of a break in cable continuity. The method allows taking into account the effect of the maximum deviation of the load force of an arbitrary cable from the design one on the pulling capacity of the stay due to a defect in the connection to the structure, taking into account the nonlinear deformation of its components, thereby increasing the reliability of the results of stay calculation and thereby increasing the reliability of the structure.

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Authors and Affiliations

  1. State Technical University of Dnipro, Kamyanske, Ukraine

    I. V. Belmas, O. I. Bilous, H. I. Tantsura, A. V. Shvachka, Yu. Yu. Hupalo & D. P. Chasov

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  1. I. V. Belmas
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  2. O. I. Bilous
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  3. H. I. Tantsura
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  4. A. V. Shvachka
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  5. Yu. Yu. Hupalo
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  6. D. P. Chasov
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Correspondence to I. V. Belmas.

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Translated from Problemy Mitsnosti, No. 4, pp. 66 – 73, July – August, 2023.

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Belmas, I.V., Bilous, O.I., Tantsura, H.I. et al. Strength of a Rubber Cable Stay with Defects in its Connection to a Structure. Strength Mater 55, 736–742 (2023). https://doi.org/10.1007/s11223-023-00563-y

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  • DOI: https://doi.org/10.1007/s11223-023-00563-y

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