The present paper deals with the experimental studies carried out on free vibration of isotropic and laminated composite skew plates. The natural frequencies were also determined using QUAD8 finite element of MSC/NASTRAN and a comparison was made between the experimental values and the finite element solution. The effects of the skew angle and aspect ratio on the natural frequencies of isotropic skew plates were studied. The effects of the skew angle, aspect ratio, fiber orientation angle and laminate sequence (keeping the number of layers constant) on the natural frequencies of antisymmetric composite laminates were also studied. The experimental values of natural frequencies are in good agreement with the FE solutions. The natural frequencies are found to increase with an increase in the skew angle. The variation of natural frequencies with the aspect ratio is small and negligible both for isotropic and laminated composite skew plates.
REFERENCES(34)
1.
Bardell N.S. (1992): The free vibration of skew plates using the hierarchical finite element method. - Computer and Structures, vol.45, pp.841-874.
Cawley P. and Adams R.D. (1978): The predicted and experimental natural modes of free-free CFRP plates. - Journal of Composite Materials, vol.12, pp.336-347.
Chakraborty S., Mukhopadhyay M. and Mohanty A.R. (2000): Free vibrational responses of FRP composite plates: Experimental and numerical studies. - Journal of Reinforced Plastics and Composites, vol.19, pp.535-551.
Conway H.D. and Farnham K.A. (1965): The free flexural vibrations of triangular rhombic and parallelogram plates and some analogies. - International Journal of Mechanical Sciences, vol.7, pp.811-816.
Durvasula S. (1969): Natural frequencies and modes of clamped skew plates. - American Institute of Aeronautics and Astronautics Journal, vol.7, pp.1164-1166.
Dutt K.M. and Shivanand H.K. (2011): An experimental approach to free vibration response of carbon composite laminates. - Journal of Advanced Engineering and Applications, pp.66-68.
Garg A.K., Khare R.K. and Kant T. (2006): Free vibration of skew fiber-reinforced composite and sandwich laminates using a shear deformable finite element model. - Journal of Sandwich Structures and Materials, vol.8, pp.33-53.
Hamada M. (1959): Compressive or shearing buckling load and fundamental frequency of a rhomboidal plate with all edges clamped. - Bulletin of JSME, vol.2, pp.520-526.
Kuttler J.R. and Sigillito V.G. (1980): Upper and lower bounds for frequencies of clamped rhombical plates. - Journal of Sound and Vibration, vol.68, pp.597-607.
Laura P.A. and Grosson J. (1968): Fundamental frequency of vibration of rhombic plates. - Journal of Acoustical Society of America, vol.44, pp.823-824.
Liew K.M. and Lam K.Y. (1990): Application of two- dimensional orthogonal plate functions to flexural vibration of skew plates. - Journal of Sound and Vibration, vol.132, No.2, pp.241-252.
Liew K.M. and Wang C.M. (1993): Vibration studies on skew plates: treatment of internal line supports. - Computers and Structures, vol.49, No.6, pp.941-951.
Malhotra S.K., Ganesan N. and Veluswami M.A. (1988): Effect of fiber orientation and boundary conditions on the vibration behavior of orthotropic rhombic plates. - Journal of Composites, vol.19, No.2, pp.127-132.
Maruyama K., Ichinomiya O. and Narita Y. (1983): Experimental study of the free vibration of clamped trapezoidal plates. - Journal of Sound and Vibration, vol.88, No.4, pp.523-534.
McGee O.G. and Butalia T.S. (1994): Natural frequencies of shear deformable cantilevered skew thick plates. - Journal of Sound and Vibrations, vol.176, pp.351-376.
Mizusawa T. and Kajita T. (1986): Vibration and buckling of skew plates with edges elastically restrained against rotation. - Computers and Structures, vol.22, pp.987-994.
Mizusawa T., Kajita T. and Naruoka M. (1979): Vibration of skew plates by using b-spline functions. - Journal of Sound and Vibration, vol.62, pp.301-308.
Mizusawa T., Kajita T. and Naruoka M. (1980): Analysis of skew plate problems with various constraints. - Journal of Sound and Vibration, vol.68, pp.575-584.
Monforton G.R. (1968): Finite element displacement and vibration analysis of skew plates. - Report18, Division of Solid Mechanics. Structural and Mechanical Design Case. - Cleveland, Ohio: Western Reserve University.
Singh B. and Chakraverthy S. (1994): Flexural vibration of skew plates using boundary characteristic orthogonal polynomials in two variables. - Journal of Sound and Vibrations, vol.173, pp.157-178.
Singha M.K. and Ganapathi M. (2004): Large amplitude free flexural vibrations of laminated skew plates. - Journal of Non-Linear Mechanics, vol.39, pp.1709-1720.
Srinivasa C.V., Suresh Y.J. and Prema Kumar W.P. (2012): Free flexural vibration studies on laminated composite skew plates. - International Journal of Engineering, Science and Technology, vol.4, No.4, pp.13-24.
Srinivasan R.S. and Ramachandran S.V. (1975): Vibration of generally orthotropic skew plates. - Journal of Acoustic Society of America, vol.57, pp.1113-1118.
Thangam Babu P.V. and Reddy D.V. (1971): Frequency analysis of skew orthotropic plates by the finite strip method. - Journal of Sound and Vibration, vol.18, No.4, pp.465-474.
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