Моделювання та дослідження впливу шорсткості поверхні на міцність електропровідного волокна: Fìz.-mat. model. ìnf. tehnol. 2021, 31:51-59

In the framework of the model of locally inhomogeneous electrically conductive nonferromagnetic solid, the near-surface inhomogeneity in a solid cylinder is investigated. It is shown that such inhomogeneity is characterized by three characteristic sizes associated with the structural inhomogeneity o...

Повний опис

Збережено в:
Бібліографічні деталі
Дата:2021
Автори: Nahirnyj, Taras, Tchervinka, Kostiantyn
Формат: Стаття
Мова:Українська
Опубліковано: Інститут прикладних проблем механіки і математики ім. Я. С. Підстригача НАН України 2021
Теми:
Онлайн доступ:https://www.fmmit.lviv.ua/index.php/fmmit/article/view/189
Теги: Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
Назва журналу:Physico-mathematical modeling and informational technologies

Репозитарії

Physico-mathematical modeling and informational technologies
Опис
Резюме:In the framework of the model of locally inhomogeneous electrically conductive nonferromagnetic solid, the near-surface inhomogeneity in a solid cylinder is investigated. It is shown that such inhomogeneity is characterized by three characteristic sizes associated with the structural inhomogeneity of the material, the roughness of the real surface and the electronic subsystem. The charge distribution features a double electric layer. The size effect of fiber strength and its dependence on geometric inhomogeneity parameters of the surface are studied. References Parthasarathy, T. A., Rao, S. I., Dimiduk, D. M., Uchic, M. D., Trinkle, D. R. (2007). Contribution to size effect of yield strength from the stochastics of dislocation source lengths in finite samples. Scripta Materialia, 56(4), 313–316. DOI doi.org/10.1016/j.scriptamat.2006.09.016 Zhang, W., Wang, T., Chen, X. (2008). Effect of surface stress on the asymmetric yield strength of nanowires. Journal of Applied Physics, 103(12), 123527. DOI doi.org/10.1063/1.2946447 Takeo, K., Aoki, Y., Osada, T., Nakao, W., Ozaki, S. (2019). Finite Element Analysis of the Size Effect on Ceramic Strength. Materials, 12(18), 2885. DOI doi.org/10.3390/ma12182885 Barbat, G. B., Cervera, M., Chiumenti, M., Espinoza, E. (2020). Structural size effect: Experimental, theoretical and accurate computational assessment. Engineering Structures, 213, 110555. DOI doi.org/10.1016/j.engstruct.2020.110555 Nahirnyi, T. S., Chervinka, K. A. (2018). Osnovy mekhaniky lokalno neodnoridnykh deformivnykh tverdykh til. Lviv: Rastr-7. Nahirnyj, T., Tchervinka, K. (2015). Mathematical modeling of structural and near-surface non-homogeneites in thermoelastic thin films. Int.J.Eng.Sci., 91, 49–62. DOI doi.org/10.1016/j.ijengsci.2015.02.001 Nahirnyj, T., Tchervinka, K. (2020). Functional kinetic equations in mathematical modeling of coupled processes in solids. Continuum Mechanics and Thermodynamics, 32, 1727-1743. DOI doi.org/10.1007/s00161-020-00877-1 Tamm, I. E. (1976). Osnovyi teorii elektrichestva. M., «Nauka». Panasyuk, V. V., Andreykiv, A. E., Parton, V. S. (1988). Osnovyi mehaniki razrusheniya materialov. Mehanika razrusheniya i prochnost materialov: Sprav. posobie. K.: Nauk. dumka. Nahirnyi, T. S., Chervinka, K. A. (2014). Osnovy mekhaniky lokalno neodnoridnykh pruzhnykh til. Osnovy nanomekhaniky II. Lviv: Rastr-7.
DOI:10.15407/fmmit2021.31.051