RESEARCH PAPERS: Offshore Mechanics

Numerical Modeling of Dynamic Inelastic Response of Clamped Rectangular Plates Impacted by a Knife-Edge Indentor

[+] Author and Article Information
L. Zhu, D. Faulkner

Department of Naval Architecture and Ocean Engineering, University of Glasgow, Glasgow, U.K.

J. Offshore Mech. Arct. Eng 113(4), 312-319 (Nov 01, 1991) (8 pages) doi:10.1115/1.2919936 History: Received June 14, 1990; Revised June 11, 1991


The dynamic behavior of a fully clamped rectangular plate impacted by a rigid knife-edge is studied in this paper. Based on the variational finite difference method, a numerical model of dynamic inelastic response of plates impacted by a rigid knife-edge indentor is being developed, which includes the influence of finite transverse displacements, axial restraints, bending moments, material elasticity and strain hardening. The struck plate and rigid striker were coupled in the numerical simulation, with the deformation, strain, stress and impact force as outputs of the calculation. Numerical results were given on a small-scale ship model test, which provides a full picture of the response of the clamped rectangular plate under dynamic load. It provides information on the impact force, deformation, stress and strain everywhere in the plate. Such data could not be obtained experimentally or by simple plastic formulations.

Copyright © 1991 by The American Society of Mechanical Engineers
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