TY - JOUR
AU - Hayat Saidi
AU - Meriem Sahla
PY - 2019/08/24
Y2 - 2019/11/15
TI - Vibration analysis of functionally graded plates with porosity composed of a mixture of Aluminum (Al) and Alumina (Al2O3) embedded in an elastic medium
JF - Frattura ed IntegritĂ Strutturale
JA - Fra&IntStrut
VL - 13
IS - 50
SE - Analytical, Computational and Physical Models
DO - 10.3221/IGF-ESIS.50.24
UR - https://www.fracturae.com/index.php/fis/article/view/2571
AB - In this scientific work, a new shear deformation theory for free vibration analysis of simply supported rectangular functionally graded plate embedded in an elastic medium is presented.Due to technical problems during the fabrication, porosities can be created in side FGM plate which may lead to reduction in strength of materials. In this investigation the FGM plate are assumed to have a new distribution of porosities according to the thickness of the plate. The elastic medium is modeled as Winkler-Pasternak two parameter models to express the interaction between the FGM plate and elastic foundation. The four unknown shear deformation theory is employed to deduce the equations of motion. The Hamiltonâ€™s principle is used to derive the governing equations of motion. The accuracy of this theory is verified by compared the developed results with those obtained using others plate theory. Some examples are performed to demonstrate the effect of changing gradient material, elastic parameters, porosity index, and length to thickness ratios on the fundamental frequency of functionally graded plate.
ER -