The dynamic properties of carbon-glass fibre sandwich-laminated composites: theoretical,experimental and economic considerations |
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| Affiliation: | 1. Institute of Aeronautical Materials, Beijing People''s Republic of China;2. Shaanxi Mechanical Engineering Institute, Xian People''s Republic of China;3. Department of Mechanical Engineering, University of Bristol, Queen''s Building, University Walk, Bristol, BS8 1TR, UK;1. CEA, DES, IRESNE, DTN, F-13108, Saint-Paul-Lez-Durance, France;2. CIEMAT, Avenida Complutense, 40, 28040, Madrid, Spain;3. CEA, IRFM, F-13108, Saint Paul-Lez-Durance, France;1. Department of Strength of Materials, Lodz University of Technology, Stefanowskiego 1/15, 90-924 Lodz, Poland;2. Department of Mechatronics and Mechanical Systems Engineering, University of São Paulo, Av. Professor Mello Moraes, 2231, São Paulo, SP 05508-030, Brazil;1. Intensive Care Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain;2. Intensive Care Unit, Hospital Arnau de Vilanova, Lleida, Spain;3. Intensive Care Unit, Hospital del Mar, Barcelona, Spain;1. Faculty of Engineering, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK;2. Beijing Institute of Aeronautical Materials, Wenquan, Haidian District, Beijing, 100095, China |
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| Abstract: | Mathematical predictions of the dynamic properties of carbon-glass fibre sandwich hybrid laminated composites from the properties of the constituent materials have been developed. The energy method was used for predicting the dynamic properties of hybrid beams, while a finite element analysis technique was used for predicting the mode shape, resonant frequency and damping of the hybrid plates. Good agreement was obtained between the theoretical and experimental results for both beams and plates. It has been shown that by adding a small amount of cfrp to the surface of a grp composite, sandwich hybrid composites can be produced which have a much higher flexural modulus than the original grp. Thus, hybrid composites can be used economically for structural components, which carry mainly flexural loads. |
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