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RESEARCH PAPERS

Dynamic Response of Curved Laminated Plates Subjected to Low Velocity Impact

[+] Author and Article Information
R. L. Ramkumar

Mechanical Engineering Department, California State University, Long Beach, CA 90840

Y. R. Thakar

Mechanical Engineering Department, California State University, Long Beach, CA 90840; City of Los Angeles Mechanical Testing Laboratory, Los Angeles, CA 90031

J. Eng. Mater. Technol 109(1), 67-71 (Jan 01, 1987) (5 pages) doi:10.1115/1.3225936 History: Received November 01, 1986; Online September 15, 2009

Abstract

An analysis to predict the transient response of a thin, curved laminated plate subjected to low velocity transverse impact by a rigid object is presented. The contact force history due to the impact phenomenon is assumed to be a known imput to the analysis. The coupled governing equations, in terms of the Airy stress function and shell deformation, are solved using Fourier series expansions for the variables. Closed-form analytical solutions for plate deflections and strains are compared with available impact test results for flat plates. Outer ply strains are used to predict fiber failures and matrix splitting between fibers in the impacted laminate.

Copyright © 1987 by ASME
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