Volume 9 article 194 pages: 276 - 280

Published: May 09, 2017

CONTRIBUTION TO REVIEW OF THE EFFECTS LEKHNITSKII INFLUENCE TO DYNAMIC PARAMETERS OF COMPOSITE STRUCTURES

Tomic Radoljub
Tomic Radoljub
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∙ Jovanovic Tomislav
Jovanovic Tomislav
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Abstract

Dynamic analysis of anisotropic (in this paper generalized orthotropic) structure is often reduced to the analysis of quasi isotropic structures. In this way, it is possible to obtain results of acceptable accuracy. Improvement of results can be achieved primarily through the appropriate stiffness matrix, which includes specifics of composite (anisotropic) material concerning the interactions of normal stress and shear strain, apropos shear stress and dilatation (based on the effects of Leknitskii). Results of the analysis for the two above-mentioned models of a composite structure (generally orthotropic and quasi-orthotropic), are presented in graphical and tabular form.

Keywords

Dynamic analysis Composite materials Lekhnitskii effects

Acknowledgements


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