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Evaluation of the transverse shear stiffness of a steel bi-directional corrugated-strip-core sandwich beam

Evaluation of the transverse shear stiffness of a steel bi-directional corrugated-strip-core sandwich beam
Evaluation of the transverse shear stiffness of a steel bi-directional corrugated-strip-core sandwich beam
This paper presents a new concept in steel bi-directional corrugated-core sandwich structures. The focus is on the derivation of the transverse shear stiffness DQy of a sandwich beam using analytical methods. A braced frame analogy and its periodical unit cell, based on a force–distortion relationship concept, are used as the basis for deriving transverse shear stiffness relationships using the modified stiffness matrix approach. The transverse shear stiffness equation is consistent with a three-dimensional finite element solution. It is then used to assess the effect of geometrical parameters defining the corrugated sandwich beam. The performance of a steel bi-directional corrugated-strip-core sandwich beam compared with other corrugated-like core sandwich beams is then examined and discussed.
sandwich beam, corrugated core, modelling, stiffness matrix, transverse shear stiffness, finite element
0143-974X
248-254
Leekitwattana, M.
fa6ec6b2-6484-4a0e-bb2a-5c49e30a8640
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Leekitwattana, M.
fa6ec6b2-6484-4a0e-bb2a-5c49e30a8640
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960

Leekitwattana, M., Boyd, S.W. and Shenoi, R.A. (2011) Evaluation of the transverse shear stiffness of a steel bi-directional corrugated-strip-core sandwich beam. Journal of Constructional Steel Research, 67 (2), 248-254. (doi:10.1016/j.jcsr.2010.07.010).

Record type: Article

Abstract

This paper presents a new concept in steel bi-directional corrugated-core sandwich structures. The focus is on the derivation of the transverse shear stiffness DQy of a sandwich beam using analytical methods. A braced frame analogy and its periodical unit cell, based on a force–distortion relationship concept, are used as the basis for deriving transverse shear stiffness relationships using the modified stiffness matrix approach. The transverse shear stiffness equation is consistent with a three-dimensional finite element solution. It is then used to assess the effect of geometrical parameters defining the corrugated sandwich beam. The performance of a steel bi-directional corrugated-strip-core sandwich beam compared with other corrugated-like core sandwich beams is then examined and discussed.

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Published date: February 2011
Keywords: sandwich beam, corrugated core, modelling, stiffness matrix, transverse shear stiffness, finite element
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 171775
URI: http://eprints.soton.ac.uk/id/eprint/171775
ISSN: 0143-974X
PURE UUID: 5012caee-7ea2-4da1-8603-7fae20231caf

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Date deposited: 20 Jan 2011 11:20
Last modified: 08 Jan 2022 14:35

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Contributors

Author: M. Leekitwattana
Author: S.W. Boyd
Author: R.A. Shenoi

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