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Experimental testing of structural arrangement on window response to long-duration blast

journal contribution
posted on 09.02.2021, 10:23 by Sarah Monk, Simon Clubley
In an explosion, window failure can occur at large standoff distances resulting in a significant hazard radius. Up to 80% of injuries in an urban blast are estimated to be caused by glass failure and subsequent fragmentation. Annealed glass, found in many older buildings, shatters instantly into angular shards lacerating the skin on impact and causing significant injury. Large explosions produce long-duration blast environments in the far-field. These events are high-energy and produce impulses which can cause window failure several kilometres away from the detonation. Data from long-duration blasts indicate window failure is highly dependent on glazing aspect ratio, area and other structural support parameters. In this paper, influence of glazing aspect ratio, support conditions, material strength and the blast environment on window failure was experimentally investigated. Twenty full-scale experiments quantified parameter influence on glazing response to long-duration blast. Importantly, experimental repeats exhibited notable data spread demonstrating that glazing response should be quantified primarily by probability of failure and not deterministic methods characteristic of current custom and practice. Repeat reference data sets are of considerable scientific value to both practitioners and researchers particularly in this difficult field of engineering where access to suitable test facilities remain limited.

Funding

Engineering and Physical Sciences Research Council (EPSRC) [grant number 1636607]

History

School

  • Architecture, Building and Civil Engineering

Published in

Engineering Failure Analysis

Volume

123

Publisher

Elsevier

Version

AM (Accepted Manuscript)

Rights holder

© Crown Copyright

Publisher statement

This paper was accepted for publication in the journal Engineering Failure Analysis and the definitive published version is available at https://doi.org/10.1016/j.engfailanal.2021.105304.

Acceptance date

06/02/2021

Publication date

2021-02-16

Copyright date

2021

ISSN

1350-6307

Language

en

Depositor

Dr Simon Clubley Deposit date: 8 February 2021

Article number

105304