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Optimum fibre orientation layout of composite sandwich panels for maximum stiffness

Author(s): W. Boruszewski, M. Kataoka-Filho & L.E. Barbosa Abstract: Composite sandwich panel stiffness as a function of fibre orientation layout of face sheet is examined keeping total mass constant. Two basic layouts are con- sidered: the first using constant fibre orientation and the second having a dif- ferent fibre angle for each panel quarter. Specimens are tested showing good agreement with the first natural frequencies calculated for their finite element models. Taking fibre angles as design variables both layouts are maximized for the first eigenvalue. Two subsequent partitions are modeled with important stiffness increases achieved. 1 Introduction The use of sandwich structures has been increasing in recent years as a result of their light weight and high stiffness. They have been used in a variety of appli- cations such as... Pages: 8 Size: 488 kb Paper DOI: 10.2495/CP960191

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Download the Full Article This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon to the right.