Experimental Analysis of Large Amplitude Free...

Experimental Analysis of Large Amplitude Free Vibration of Composite Plates by Finite Element Method

Author Name : Saurabh, Mr. Yudhvir Yadav

ABSTRACT: Most of the structural components are generally subjected to dynamic loadings in their working life. Very often these components may have to perform in severe dynamic environment where in the maximum damage results from the resonant vibrations. Susceptibility to fracture of materials due to vibration is determined from stress and frequency. Maximum amplitude of the vibration must be in the limited for the safety of the structure. Hence vibration analysis has become very important in designing a structure to know in advance its response and to take necessary steps to control the structural vibrations and its amplitudes. The non-linear or large amplitude vibration of plates has received considerable attention in recent years because of the great importance and interest attached to the structures of low flexural rigidity. These easily deformable structures vibrate at large amplitudes. The solution obtained based on the lineage models provide no more than a first approximation to the actual solutions. In the present investigation, large amplitude free vibration analyses of composite Mindlin’s plates have been carried out using a C_0 eight noded Langragian element by finite element method. The formulation is based on “First order shear deformation theory”.