Optimal design of sandwich panels made of wood veneer hollow cores

Article

Banerjee, S. and Bhattacharyya, D.. 2011. "Optimal design of sandwich panels made of wood veneer hollow cores." Composites Science and Technology. 71 (4), pp. 425-432. https://doi.org/10.1016/j.compscitech.2010.12.011
Article Title

Optimal design of sandwich panels made of wood veneer hollow cores

ERA Journal ID4884
Article CategoryArticle
AuthorsBanerjee, S. (Author) and Bhattacharyya, D. (Author)
Journal TitleComposites Science and Technology
Journal Citation71 (4), pp. 425-432
Number of Pages8
Year2011
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN0266-3538
1879-1050
Digital Object Identifier (DOI)https://doi.org/10.1016/j.compscitech.2010.12.011
Web Address (URL)http://www.sciencedirect.com/science/article/pii/S0266353810004793
Abstract

In response to the growing interest in replenishable, lightweight, stiff and strong materials, a novel sandwich panel with a hollow core has been manufactured using commercially produced 3-ply veneer. In this paper, the out-of-plane shear behaviour of the novel hollow core is analysed and the expressions for the failure loads are developed. A strength-based optimisation problem is formulated for predicting the optimum values of the panel dimensions that would produce minimum panel weight when subjected to bending. It has been found that the minimum weight, as predicted by the full four parameter optimisation, is slightly lower than that obtained by using the closed form expressions derived on the basis of simplified three parameter optimisation. Relationships between the active failure modes are explored. Design maps are shown for a wide range of loading that can be used to calculate the minimum panel weight and the corresponding values of the geometric parameters. The approach developed is general and is equally applicable for sandwich panels with similar hollow cores made of other materials.

Keywordssandwich structures; hollow core; wood veneer; failure criteria; optimisation
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020401602. Composite and hybrid materials
401609. Polymers and plastics
401706. Numerical modelling and mechanical characterisation
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Byline AffiliationsCentre of Excellence in Engineered Fibre Composites
University of Auckland, New Zealand
Institution of OriginUniversity of Southern Queensland
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