Comparison of experimental and analytical results for free vibration of laminated composite plates
- Hokkaido Inst. of Tech., Sapporo (Japan). Dept. of Mechanical Engineering
Fibrous composite materials are being increasingly employed in high performance structures, including pressured vessel and piping applications. These materials are usually used in the form of laminated flat or curved plates, and the understanding of natural frequencies and the corresponding mode shapes is essential to a reliable structural design. Although many references have been published on analytical study of laminated composite plates, a limited number of experimental studies have appeared for dealing with vibration characteristics of the plates. This paper presents both experimental and analytical results for the problems. In the experiment, the holographic interferometry is used to measure the resonant frequencies and corresponding mode shapes of six-layered CFRP (carbon fiber reinforced plastic) composite plates. The material constants of a lamina are calculated from fiber and matrix material constants by using some different composite rules. With the calculated constants, the natural frequencies of the laminated CFRP plates are theoretically determined by the Ritz method. From the comparison of two sets of the results, the effect of choosing different composite rules is discussed in the vibration study of laminated composite plates.
- OSTI ID:
- 122513
- Report Number(s):
- CONF-950740-; ISBN 0-7918-1333-9; TRN: IM9547%%93
- Resource Relation:
- Conference: Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Composites for the pressure vessel industry. PVP-Volume 302; Bees, W.J.; Newaz, G.M.; Narita, Yoshihiro; Takezono, S.; Qatu, M.S.; Hirano, T.; Miyazaki, N.; Nakagaki, M. [eds.]; PB: 312 p.
- Country of Publication:
- United States
- Language:
- English
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