Response and Failure of Internal Structural Subsystems Under Blast and Shock Loading

[+] Author and Article Information
D. W. Tennant, H. S. Levine

Weidlinger Associates, 4410 El Camino Real, Suite 110, Los Altos, CA 94022

J. Pressure Vessel Technol 116(4), 409-418 (Nov 01, 1994) (10 pages) doi:10.1115/1.2929609 History: Received November 01, 1993; Revised July 11, 1994; Online June 17, 2008


The objective of this paper is to evaluate the ability to accurately predict the motions, structural response, and failure modes of internal structural components subjected to high-intensity airblast and ground shock loading. The cases of interest involve a surface flush, buried reinforced concrete cylinder that is expected to experience negligible damage, within which are contained aluminum and steel structures that may or may not be shock-isolated at the internal attachment points. The structures and subsystems are modeled in detail using the FLEX three-dimensional nonlinear transient analysis code. The analyses were carried out using the soil island approach to represent the local airblast-induced, direct-induced, and crater-related ground shock from a simulated nuclear explosion. A test involving only local airblast effects with hard-mounted internal substructures was conducted. Comparisons of data from this test with calculations will be presented. Calculations will also be included that show potential failure mechanisms for the internal subsystems and their causes.

Copyright © 1994 by The American Society of Mechanical Engineers
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