Simplification of fully confined blasts for structural response analysis
Date
2013
Authors
Dragos, J.
Wu, C.
Oehlers, D.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Engineering Structures, 2013; 56:312-326
Statement of Responsibility
Jonathon Dragos, Chengqing Wu, Deric John Oehlers
Conference Name
Abstract
A blast in a fully confined environment magnifies the blast loading resulting in more serious damage to surrounding structural members. To protect critical infrastructure against confined blasts, the confinement effects need to be fully taken into consideration. In this paper, a procedure to simplify the highly irregular nature of fully confined blast loads was developed for the purpose of being incorporated into a structural response analysis tool such as a Pressure Impulse Diagram. It was found that when the centroid of the simplified confined blast load was close to the centroid of the actual confined blast load, whilst keeping the total impulse the same, the response of a member caused by the simplified confined blast load was similar to that produced by the actual confined blast load. This concept to accurately simplify an irregular confined blast based on structural response was then used to construct the method of simplification. This method of simplification was then tested using a structural response model for the purposes of validation and suitability. A comparison was then made against the current UFC guidelines predictions to assess its accuracy. © 2013 Elsevier Ltd.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright © 2013 Elsevier Ltd. All rights reserved.