DAMAGE OF PLATES DUE TO IMPACT, DYNAMIC PRESSURE AND EXPLOSIVE LOADS

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NORMAN JONES

Abstract

IT IS THE PURPOSE OF THIS ARTICLE TO PRESENT DESIGN EQUATIONS WHICH CAN BE USED TO PREDICT THE DAMAGE OF DUCTILE PLATING WHEN SUBJECTED TO MASS IMPACT, DYNAMIC PRESSURE OR IMPULSIVE LOADINGS. THE EXTERNAL LOADINGS ARE SUFFICIENTLY SEVERE TO PRODUCE INELASTIC MATERIAL BEHAVIOUR AND PRODUCE FINITE TRANSVERSE DISPLACEMENT, OR GEOMETRY CHANGE, EFFECTS. THE DAMAGE IS CHARACTERISED AS THE FINAL OR PERMANENT TRANSVERSE DISPLACEMENT OF A PLATE.

     THE THEORETICAL METHOD PREDICTS VALUES FOR THE MAXIMUM PERMANENT TRANSVERSE DISPLACEMENTS WHICH AGREE REASONABLY WELL WITH THE CORRESPONDING EXPERIMENTAL RESULTS GENERATED ON ALUMINIUM ALLOY CIRCULAR, SQUARE AND RECTANGULAR PLATES. THUS, THE EQUATIONS PRESENTED IN THIS ARTICLE ARE VALUABLE FOR PRELIMINARY DESIGN PURPOSES AND FOR FORENSIC STUDIES, WHILE THE EXPERIMENTAL DATA CAN BE USED FOR VALIDATING NUMERICAL SCHEMES. 

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