Integrated Anti-terrorism Physics-based
Modelling Part 1: Threats, Loads And
Structural Response
Author(s)
F. A. Maestas, J. L. Smith & L. A. Young
Abstract
Modelling of a terrorist attack in an urban environment requires a balanced
understanding of the complex physical processes that occur and management of
the inherent uncertainties associated with the modelling. This paper examines the
key physics-based techniques required to accurately model a terrorist attack in an
urban environment. Specifically this paper will address the blast and fragment
environment that results from an Improvised Explosive Device (IED) detonation,
the loads on an urban structure and the response of that structure, to include
progressive collapse. Tools such as the United States Air Force Research
Laboratory’s (AFRL’s) Modular Effectiveness/Vulnerability Assessment
(MEVA) code and the Defense Threat Reduction Agency’s (DTRA’s) Integrated
Modular Effectiveness Analysis (IMEA) tool embody algorithms for blast and
fragment environment characterization, structural response analyses, and
structural assessments. The key physics-based algorithms in these tools and
others will be highlighted. Additionally this paper will provide an approach to
handling the uncertainties of modelling the urban structure given limited
knowledge of the building’s key structural attributes. The combination of
treating uncertainties in a physics-based approach provides an integrated
modelling method for evaluating and planning for a terrorist attack.
Keywords: weapon effectiveness, survivability analysis, modelling and
simulation, physical security analysis, personnel security.
1 Introduction
Modelling of a terrorist attack in an urban environment requires a balanced
understanding of the complex physical processes that occur and management of
Keywords
weapon effectiveness, survivability analysis, modelling and
simulation, physical security analysis, personnel security.
Related Book
Other papers in this volume
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