Continuity breakageof cableinorthotropic stay rope of rectangular cross-section
DOI:
https://doi.org/10.33271/crpnmu/77.184Keywords:
multi-layer stay rope, stress-strain state, cable breakage, cross-section of connection to structure, orthotropic stay rope, rectangular cross-section.Abstract
Purpose. Construction of an algorithm for determining a stress-strain state of a multi-layer stay rope of a rectangular cross-section with a broken reinforcing fiber. Methods. Analytical solution of an interaction model of parallel fibers connected by elastic material of a stay rope of rectangular cross-section in the event of reinforcing element breakage using methods of mechanics of layered composite materials with soft and hard layers. Findings. An analytical algorithm for determining a stress-strain state of a composite stay rope of rectangular cross-section with a damaged reinforcing fiber is constructed.An analytical method for determining a stress-strain state of a rope with a comprehensive consideration of structure, mechanical properties of components, layout of reinforcing fibers in a cross-section, in a presence of a broken fiber, is developed in a closed form.It is established that load unevenness on fibers is practically independent of the ratio of an amount of fibers and layers in a rope and their total amount, and the ratio of fiber placement spacing in layers and spacing of layers in case of fiber breakage in a stay rope cross-section. Scientific novelty. It is established that load unevenness on fiber does not depend on a ratio of an amount of fibers and amount of layers in a stay rope. Practical significance. The developed algorithm makes it possible to determine the share of tractive capacity loss of a stay rope of rectangular cross-section due to breakage of a reinforcing element. The known value of lost strength makes it possible to establish acceptable conditions for use of a rope of rectangular cross-section. It is advisable to give a rope a shape with less resistance to air pressure by reducing the amount of layers compared to the amount of fibers in layers. Damage to a corner element of cable reinforcement is more dangerous, it leads to a load increase of almost 30 % in the most loaded fiber, while the specified parameter is less than 20 % in case of a breakage of the central fiber.References
1. Ропай, В.А. (2016). Шахтні врівноважувальні канати: монографія . Національний гірничий університет.
2. Volokhovskii, V.Yu., Radin, V.P., & Rudyak, M.B. (2010). Kontsentratsiya usilii v trosakh i nesushchaya sposobnost rezinotrosovikh konveiernikh lent s povrezhdeniyami. Vestnik MEI, 5 , 5–12
3. Belmas,I., Kolosov,D.(2011).The stress-strain state of the stepped rubber-rope cable in bobbin of winding. Technical and Geoinformational Systems in Mining . Taylor & Francis Group, London, UK. 211–214
4. Бондар, Н.В. (2019). Дисертація на здобуття наукового ступеня кандидата технічних наук зі спеціальності 05.07.02–Проектування, виробництво та випробування літальних апаратів . Національний авіаційний університет МОН України.
5. Kwak, S.-B., & Choi, N.-S. (2009). Micro-damage formation of a rubber hose assembly for automotive hydraulic brakes under a durability test. Engineering Failure Analysis, 16 (4), 1262–1269. https://doi.org/10.1016/j.engfailanal.2008.08.009
6. Cho, J. R., Yoon, Y. H., Seo, C. W., & Kim, Y. G. (2015). Fatigue life assessment of fabric braided composite rubber hose in complicated large deformation cyclic motion. Finite Elements in Analysis and Design, 100 , 65–76. https://doi.org/10.1016/j.finel.2015.03.002
7. Belmas l., Kolosov D., Kolosov О., Onyshchenko S.(2018). Stress-strain state of а conveyor belt with cables of different rigidity and their breakages. Fundamental and applied researches in practice of leading scientific schools, 26 (2).231–239.
8. Бельмас, І., Білоус, О., Танцура, Г., Сай, О., & Гупало, Ю. (2022). Вплив пориву троса на напружений стан гумотросового вантового канату. Комп'ютерно-інтегровані технології: освіта, наука, виробництво , (48), 42–52. https://doi.org/10.36910/6775-2524-0560-2022-48-07
9. Танцура,Г.І.(2010). Гнучкі тягові органи. Стикові з'єднання конвеєрних стрічок . ДДТУ.
10. Бельмас, І.В., Колосов, Д.Л., Онищенко, С.В., Білоус, О.І., Танцура, Г.І., & Черниш, П.В. (2022). Напружено-деформований стан композитного каната з урахуванням впливу нелінійності його деформування та розриву елементу армування. Збірник наукових праць Національного гірничого університету, 70 , 99–106. https://doi.org/10.33271/crpnmu/70.099
Downloads
Published
Issue
Section
License
All articles are published under the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Authors retain copyright and grant the journal right of first publication.
Authors are permitted and encouraged to deposit the final published version of their article, or the Author's Accepted Manuscript (AAM), in institutional or subject-specific open-access repositories (including the university's own institutional repository, CORE, Zenodo, or Figshare), ensuring maximum visibility, accessibility, and impact of the publication.
