Buckling strength improvements for Fibre Metal Laminates using thin-ply tailoring

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• 作者：Radoslaw J. Mania^a ; ^{Radoslaw.Mania@p.lodz.pl" class="auth_mail" title="E-mail the corresponding author} ; Christopher Bronn York^b ; ¹
• 关键词：Bending-Twisting coupling ; Compression buckling ; Non-dimensional stiffness parameters ; Lamination parameters ; Fibre Metal Laminates ; Thin ply material
• 刊名：Composite Structures
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：159
• 期：Complete
• 页码：424-432
• 全文大小：1241 K

文摘

The buckling response and load carrying capacity of thin-walled open cross-section profiles made of Fibre Metal Laminates, subjected to static axial compression loading are considered. These include thin-walled Z-shape and channel cross-section profiles adopting a 3/2 FML lay-up design, made of 3 aluminium layers. The objective of the investigation is the comparison of standard thickness Fibre Reinforced Plastic layers versus thin-ply material technology. Whilst thin ply designs differ only by the layer thickness, they offer an exponential increase in stacking sequence design freedoms, allowing detrimental coupling effects to be eliminated. The benefit of different hybrid materials are also considered. The comparisons involve semi-analytical and finite element methods, which are validated against experimental investigations.