Dynamic analysis of laminated composite skew plates with cut-out

Arpita Mandal, Salil Haldar and Chaitali Ray

Abstract

The aim of the present paper deals with free vibration analysis of laminated composite skew plates with single and multiple cut-outs. For complete understanding of the dynamic behavior of laminated skew plates with cut-out a numerical analysis has been carried out by developing a computer code in FOTRAN. Special attention is drawn on the formulation of mass matrix by considering effect of rotary inertia. The results obtained by the finite element formulation using nine noded isoparametric plate bending element are validated by comparing the results from relevant published literature. Few new results on laminated skew plates with cut-out have been presented.

Key Words

skew laminate; multiple cut-out; modal analysis; rotary inertia; FSDT

Address

Arpita Mandal: Department of Civil Engineering, Narula Institute of Technology, Kolkata, India Salil Haldar: Department of Civil Engineering, Indian Institute of Engineering Science and Technology, Shibpur, India Chaitali Ray: Department of Aerospace Engineering & Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

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