Simon Schnabl (Author), Miran Saje (Author), Goran Turk (Author), Igor Planinc (Author)

Abstract

A mathematical model is proposed and its analytical solution derived for the analysis of the geometrically and materially linear two-layer beams with different material and geometric characteristics of an individual layer. The model takes into account the effect of the transverse shear deformation on displacements in each layer. The analytical study is carried out to evaluate the influence of the transverse shear deformation on the static and kinematic quantities. We study a simply supported two-layer planar beam subjected to the uniformly distributed load. Parametric studies have been performed to investigate the influence of shear by varying material and geometric parameters, such as interlayer slip modulus (K), flexural-to-shear moduli ratios (E/G) and span-to-depth ratios (L/h). The comparison of the results for vertical deflections shows that shear deformations are more important for high slip modulus, for ``short'' beams with small L/h ratios, and beams with high E/G ratios. In these cases, the effect of the shear deformations becomes significant and has to be addressed in design. It also becomes apparent that models, which consider the partial interaction between the layers, should be employed if beams have very flexible connections.

Keywords

nosilci;strižna deformacija;elastičnost;kompoziti;zdrs;beams;shear deformation;elasticity;composite structures;slip;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: American Society of Civil Engineers
UDC: 624.072.2
COBISS: 3550305 Link will open in a new window
ISSN: 0733-9445
Views: 2228
Downloads: 941
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Other data

Secondary language: English
Secondary keywords: nosilci;strižna deformacija;elastičnost;kompoziti;zdrs;
File type: application/pdf
Type (COBISS): Not categorized
Pages: Str. 886-894
Volume: Letn. 133
Issue: Št. 6
Chronology: 2007
DOI: 10.1061/(ASCE)0733-9445(2007)133:6(886)
ID: 8312279