Print Email Facebook Twitter Static and dynamic through thickness lamina properties of thick laminates Title Static and dynamic through thickness lamina properties of thick laminates Author Lahuerta, F. Nijssen, R.P.L. Van der Meer, F.P. Sluys, L.J. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2015-07-19 Abstract Thick laminates are increasingly present in large composites structures such as wind turbine blades. Different factors are suspected to be involved in the decreased static and dynamic performance of thick laminates. These include the effect of self-heating, the scaling effect, and the manufacturing process influence. The aim of this work is to study the through thickness variation of static and dynamic lamina properties in thick laminates. For this purpose, 60-70 mm thick unidirectional GFRP/epoxy infused panels were divided in sub-laminates with the help of peel-ply layers at different thickness positions. From each sub-laminate, 4 mm thick compression coupons with integrated tabs and tension coupons were manufactured. In order to characterize the manufacturing influence, the 60-70 mm thick laminates plates were monitored during the manufacturing. Static and fatigue tests were carried out for each sub-laminate in order to study the lamina properties at different thicknesses positions through the thickness. The present work reports temperature profiles and residual stress measurements through the thickness recorded during the manufacturing, as well as experimental data from static and fatigue tests (S-N curves) of sub-laminates obtained at different thickness positions. Subject thick laminatesmanufacturingmechanical performanceGFRP To reference this document use: http://resolver.tudelft.nl/uuid:56bdc196-9322-48d5-a272-1b7aa2fb04b5 Publisher ICCM Source ICCM 20: 20th International Conference on Composite Materials, Copenhage, Denmark, 19-24 July 2015 Part of collection Institutional Repository Document type conference paper Rights (c) 2015 The Author(s) Files PDF 319938.pdf 2.05 MB Close viewer /islandora/object/uuid:56bdc196-9322-48d5-a272-1b7aa2fb04b5/datastream/OBJ/view