Strong bending of a beam from a fibrous composite, differently resistant to tension and compression

Описание

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.17516/1997-1397-2019-12-5-533-542

Ключевые слова: Axial deformation, Bending state, Cosserat effect, Different resistance to tension and compression, Fiber reinforced composite, Tymoshenko effect

Аннотация: For the analysis of bending of a thin rod made of fiber composite, the generalized Euler elastic equation is used, taking into account different resistance of the material to tension and compression, the influence of transverse shear, elongation of the axis and independent rotations of the reinforcing elements relative to the matriПоказать полностьюx. Based on Newton’s method, a computational algorithm has been developed for solving the static bending problem. A method for determining phenomenological parameters of the composite has been implemented, including photographing the bending state of the rod under the action of a system of forces and couple forces, digital processing of the photography and solving the inverse coefficient problem. The method was validated by comparing the results of computations with a laboratory physical experiment. It is shown that the moduli of elasticity in tension and compression of carbon fiber composite used in the experiment, essentially differ, and that the use of equal moduli in determining bending stiffness results in a significant error in the deflection calculations. © Siberian Federal University. All rights reserved.

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Издание

Журнал: Journal of Siberian Federal University - Mathematics and Physics

Выпуск журнала: Vol. 12, Is. 5

Номера страниц: 533-542

ISSN журнала: 19971397

Издатель: Siberian Federal University

Персоны

  • Annin Boris D. (Lavrentyev Inst Hydrodynam RAS SB, Lavrentyeva 15, Novosibirsk 630090, Russia)
  • Sadovskii Vladimir M. (Inst Computat Modelling RAS SB, Akademgorodok 50-44, Krasnoyarsk 660036, Russia)
  • Petrakov Igor E. (Siberian Fed Univ, Inst Math & Comp Sci, Svobodny 79, Krasnoyarsk 660041, Russia)
  • Vlasov Anton Yu (Reshetnev Siberian State Univ Sci & Technol, Semafornaya 433-1, Krasnoyarsk 660059, Russia)

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