Wave Propagation in Laminated Composite Plates Using Higher Order Theory
Author:
Chitnis M. R.1, Desai Y. M.1, Kant T.1
Affiliation:
1. Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
Abstract
A higher order displacement based formulation has been developed to investigate wave propagation in fiber-reinforced polymer composite laminated (FRPCL) plates. The formulation has been applied, as an illustration, to a plate made up of transversely isotropic laminae with the axes of symmetry lying in the plane of the lamina. Results for the plane as well as the antiplane strain cases are shown to be in excellent agreement with the exact solutions for isotropic and transversely isotropic single layered plates. Also, numerical results have been obtained for crossply (0 deg/90 deg/0 deg/90 deg) laminated composite plates, which agree very well with the previously published numerical results. The formulation can be employed to expeditiously investigate the dispersion characteristics of waves propagating in a plate with an arbitrary number of anisotropic laminae.
Publisher
ASME International
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference5 articles.
1. Mindlin, R. D., 1960, “Waves and Vibrations in Isotropic Elastic Plates,” Proc. First Sympo. on Naval Struct. Mech., Pergamon, New York, pp. 199–232. 2. Achenbach, J. D., 1976, Wave Propagation in Elastic Solids, North-Holland, New York. 3. Datta, S. K., Shah, A. H., Bratton, R. L., and Chackraborty, T., 1988, “Wave Propagation in Laminated Composite Plates,” J. Acoust. Soc. Am., 83, pp. 2020–2026. 4. Liu, G. R., Tni, J., Watanabe, K., and Ohyoshi, T., 1990, “Harmonic Wave-Propagation in Anisotropic Laminated Strips,” J. Sound Vib., 139, pp. 313–324. 5. Lih, S., and Mal, A. K., 1995, On the Accuracy of Approximate Plane Theories for Wave-Field Calculations in Composite Laminates, Wave Motion, 21, pp. 17–34.
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