Naslov
CONTRIBUTION TO BENDING WITH SHEAR INFLUENCE OF THIN-WALLED LAMINATED COMPOSITE I-BEAMS WITH MONO-SYMMETRIC CROSS-SECTION AND VARIABLE ELASTIC PROPERTIES

Autori
Vukasović, Marko ; Pavazza, Radoslav ; Vuko, Miljenko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
CIET 2022, Conference Proceedings / Barbača Buljan, Domagoja ; Miletić, Marko - Split : University of Split, University Department of Professional Studies, Kopilica 5, 21000 Split, 2022, 744-753 / - , 2022, 304-316

Skup
5th Conference Contemporary Issues in Economics and Technology (CIET 2022)

Mjesto i datum
Valencia, Španjolska, 16.06.2022. - 17.06.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bending ; Shear ; Thin-walled composite beams ; Variable elastic properties ; Analytic solutions

Sažetak
Analytic approach to bending with shear influence of thin-walled laminated composite I-beams with mono-symmetric cross-section is presented. Beams composed of balanced laminates with symmetric lay-up and with variable elastic properties over the cross-section area are considered. Closed-form analytic solutions for the stresses and displacements are provided according to general analytic model developed for the thin-walled laminated composite beams with arbitrary open cross-sections and constant elastic properties. For the analyzed types of beams it is shown that in order to obtain uncoupled differential expressions the new center of gravity needs to be found, i.e. the new principal axes and coordinates. It is also proved that the position of the new center of gravity depends on elastic properties of laminates in beam cross-section, as well as on geometric properties. New shear factors are defined with respect to geometry of the cross-section and also with respect to variable elastic properties of laminates. Several examples of the simply supported I-beams subjected to bending with uniformly distributed load acting in the plane of symmetry have been analyzed. Beams with low length-to-height aspect ratios are taken into analysis. The influence of fiber orientation on the displacements of the center of gravity and on distribution of the displacements and stresses has been examined. The results obtained by presented analytic approach are compared with the finite element solutions. Excellent agreement of the results is obtained.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA