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Impulsive Loading of Cellular Media in Sandwich Construction

Published

Author(s)

Joseph A. Main, George A. Gazonas

Abstract

Motivated by recent efforts to mitigate blast loading using energy absorbing materials, this paper investigates the uniaxial crushing of cellular media in sandwich construction under impulsive pressure loading. The cellular core material is modeled using a rigid, perfectly-plastic, locking idealization, as in previous studies, and the front and back faces are modeled as perfectly rigid. Pressure loading is applied to the front face with the back face unrestrained. Predictions of this analytical model show excellent agreement with computational simulations using the explicit finite element code LS-DYNA. This analytical model is used to investigate the influence of the relative distribution of mass among the core and the front and back faces.
Proceedings Title
Proceedings| 14th| Topical Conference on Shock Compression of Condensed Matter
Conference Dates
July 31-August 5, 2005
Conference Title
American Physical Society

Keywords

air blast, honeycomb, LS-DYNA, metal foam, sandwich plate

Citation

Main, J. and Gazonas, G. (2005), Impulsive Loading of Cellular Media in Sandwich Construction, Proceedings| 14th| Topical Conference on Shock Compression of Condensed Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860631 (Accessed June 18, 2024)

Issues

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Created July 31, 2005, Updated February 19, 2017