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Bibliographic Data
Control Number
311518
Date and Time of Latest Transaction
20150706095135.AM
General Information
150706s |||||||||b ||00|||
Cataloging Source
STII-DOST
Local Call Number
ScienceDirect
Main Entry - Personal Name
Deshpande, V.S.
McShane, G.J.
Fleck, N.A.
Title Statement
Underwater blast response of free-standing sandwich plates with metallic lattice cores by G.J. McShane, V.S. Deshpande and N.A. Fleck
Physical Description
pages 1138-1149 computer file; text; 1,017kb
Summary, Etc.
The underwater blast response of free-standing sandwich plates with a square honeycomb core and a corrugated core has been measured. The total momentum imparted to the sandwich plate and the degree of core compaction are measured as a function of (i) core strength, (ii) mass of the front face sheet (that is, the wet face) and (iii) time constant of the blast pulse. Finite element calculations are performed in order to analyse the phases of fluid-structure interaction. The choice of core topology has a strong influence upon the dynamic compressive strength and upon the degree of core compression, but has only a minor effect upon the total momentum imparted to the sandwich. For both topologies, a reduction in the mass of the front (wet) face reduces the imparted momentum, but at the expense of increased core compression. Conversely, an increase in the time constant of the blast pulse results in lower core compression, but the performance advantage over a monolithic plate in terms of imparted momentum is reduced. The sandwich panel results are compared with analytical results for monolithic plates of mass equal to that of (i) the sandwich panel and (ii) the front face alone. (Case (i) represents a rigid core while (ii) represents a core of negligible strength.) For most conditions considered, the sandwich results lie between these limits reflecting the coupled nature of core deformation and fluid-structure interaction
Subject Added Entry - Topical Term
Engineering
Explosion
Lattice materials
Engineering and manufacturing industries
Location
DOST STII ScienceDirect NONPRINTS NP 14-15565 1 14-15565 Online/Download 2012-01-12
Physical Location
Department of Science and Technology
Science and Technology Information Institute
ScienceDirect
Digital Copy
Not Available
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