Some laminated plate optimum design studies using an interactive computer programme
- 1 March 1988
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Aeronautical Journal
- Vol. 92 (913), 107-114
- https://doi.org/10.1017/s0001924000022004
Abstract
Summary An interactive computer programme, based on linear-elastic laminated plate theory, is used to study the effect of lay-up geometry on first ply failure loads. A maximum allowable strain failure criterion is used and a number of design problems are considered where searches are made for optimum lay-up configurations for typical carbon fibre reinforced plastic properties. The relative weakness of this material in tension across the fibres, is found to have a significant effect on first ply failure loads. An optimisation technique based on principal load directions is introduced and compared with the familiar 0/90/±45 lay-up configuration.Keywords
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