000014373 001__ 14373
000014373 005__ 20161115100149.0
000014373 04107 $$aeng
000014373 046__ $$k2016-08-21
000014373 100__ $$aFarid, Mehrdad
000014373 24500 $$aNonliner vibrations of FGM shallow shells subjected to random excitation in thermal environment

000014373 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014373 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014373 506__ $$arestricted
000014373 520__ $$2eng$$aIn this paper, nonlinear Vibrations of functionally graded (FGM) shallow shells under random excitation in thermal environment are studied using multimodal finite element method (FEM). The material properties which are function of temperature, vary in the thickness direction based on a simple power law distribution. The equations of motion are obtained first in the structural node degrees of freedom (DOF) based on higher order shear deformation theory (HST) using an improved element. Then using modal reduction method the order of equations of motion are reduced. Three buckled equilibrium positions (BEPs) are obtained for FGM shallow shells under uniform temperature rise. The effects of various parameters including sound pressure level (SPL), initial condition, and radii of curvature on the nonlinear behavior of the system are studied. It is shown that FGM shallow shells demonstrate a snap through behavior under random load in thermal environment.

000014373 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014373 653__ $$a

000014373 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014373 720__ $$aFarid, Mehrdad
000014373 8560_ $$ffischerc@itam.cas.cz
000014373 8564_ $$s177097$$uhttps://invenio.itam.cas.cz/record/14373/files/PO.SM16-1.05.215.pdf$$yOriginal version of the author's contribution as presented on CD,  page 3013, code PO.SM16-1.05.215
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000014373 962__ $$r13812
000014373 980__ $$aPAPER