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

Leekitwattana, M. / Boyd, S.W. / Shenoi, R.A.

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 $D_{Q y}$ 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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Evaluation of the transverse shear stiffness of a steel bi-directional corrugated-strip-core sandwich beam

Leekitwattana, M. / Boyd, S.W. / Shenoi, R.A.

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 $D_{Q y}$ 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.

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

Leekitwattana, M. / Boyd, S.W. / Shenoi, R.A.

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 $D_{Q y}$ 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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Title:

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

Contributors:

Leekitwattana, M. (author) / Boyd, S.W. (author) / Shenoi, R.A. (author)

Published in:

Journal of Constructional Steel Research ; 67 ; 248-254

Publication date:

2010-07-24

Size:

7 pages

ISSN:

DOI:

https://doi.org/10.1016/j.jcsr.2010.07.010

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Sandwich beam , Corrugated core , Modelling , Stiffness matrix , Transverse shear stiffness , Finite element

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