Postbuckling of shear deformable sandwich beam with a functionally graded porous metal foam core

Chen, D., Kitipornchai, S. and Yang, J. (2017). Postbuckling of shear deformable sandwich beam with a functionally graded porous metal foam core. In: Hong Hao and Chunwei Zhang, Mechanics of Structures and Materials: Advancements and Challenges. Australasian Conference on the Mechanics of Structures and Materials, Perth, Australia, (1797-1802). 6 - 9 December 2016. doi:10.1201/9781315226460-282

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Author Chen, D.
Kitipornchai, S.
Yang, J.
Title of paper Postbuckling of shear deformable sandwich beam with a functionally graded porous metal foam core
Conference name Australasian Conference on the Mechanics of Structures and Materials
Conference location Perth, Australia
Conference dates 6 - 9 December 2016
Convener ACMSM
Proceedings title Mechanics of Structures and Materials: Advancements and Challenges
Place of Publication London, United Kingdom
Publisher CRC Press
Publication Year 2017
Sub-type Fully published paper
DOI 10.1201/9781315226460-282
Open Access Status Not yet assessed
ISBN 9781138029941
Editor Hong Hao
Chunwei Zhang
Volume 1
Start page 1797
End page 1802
Total pages 6
Collection year 2018
Language eng
Abstract/Summary This paper analyzes the dynamic response of a shear deformable functionally graded porous beam under a point harmonic load. Timoshenko beam theory is employed to include the effect of transverse shear strain. The elasticity moduli and mass density of the porous beam vary continuously in the thickness direction based on two different porosity distributions. The relationship between porosity and density coefficients are determined according to the mechanical property of an open-cell metal foam. The equations of motion are derived and solved by applying Ritz method in the space domain and Newmark-β method in the time domain. The dynamic deflections are obtained for porous beams with different boundary conditions. A detailed numerical analysis is presented to show the effects of porosity coefficient and slenderness ratio on the dynamic response of porous beams. The influence of porosity distribution pattern is highlighted to shed a useful insight into the design of functionally graded porous structures.
Keyword Functionally graded porous beam
Dynamic analysis
Harmonic load
Timoshenko beam theory
Porosity distribution
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
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Created: Tue, 07 Mar 2017, 10:47:22 EST by Clare Nelson on behalf of School of Mechanical and Mining Engineering