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Alternative methods of data capture for glass subjected to long-duration blast loading

Alternative methods of data capture for glass subjected to long-duration blast loading
Alternative methods of data capture for glass subjected to long-duration blast loading
The air blast tunnel (ABT) at MoD Shoeburyness is a unique testing facility capable of simulating pressure regimes recorded in long-duration blast events. Long-duration blasts are typically defined by a positive phase duration greater than 100ms, observed in the far field of large explosions. Due to its highly brittle nature, glass panels require high-speed data capture to provide reliable engineering information about their response to blast loading. The harsh environment of the ABT makes accurate collection of this data very difficult. Current methods of data capture depend on interpretation of high-speed video footage, the accuracy of which is severely affected by shock wave induced camera shake. In a series of five companion static loading tests, two different methods of recording glass failure time were trialled; a circuit of conductive paint on the surface of the glass and a series of piezo transducers to record the acoustic profile at breakage. High-speed photography provided an independent correlation. Experimental results demonstrate that piezo transducers are a low-cost and comparatively accurate method of determining the time of glass failure and crack location in a static testing environment. In February 2017, a series of eight full-scale trials in the ABT demonstrated that piezo transducers were capable of replicating these results in a long-duration blast environment.
Monk, Sarah
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Clubley, Simon
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Monk, Sarah
a18cade9-7524-41d0-9fda-b80786054c46
Clubley, Simon
d3217801-61eb-480d-a6a7-5873b5f6f0fd

Monk, Sarah and Clubley, Simon (2017) Alternative methods of data capture for glass subjected to long-duration blast loading. 2nd International Conference on Structural Safety Under Fire and Blast: CONFAB 2017, United Kingdom. 10 - 12 Sep 2017.

Record type: Conference or Workshop Item (Paper)

Abstract

The air blast tunnel (ABT) at MoD Shoeburyness is a unique testing facility capable of simulating pressure regimes recorded in long-duration blast events. Long-duration blasts are typically defined by a positive phase duration greater than 100ms, observed in the far field of large explosions. Due to its highly brittle nature, glass panels require high-speed data capture to provide reliable engineering information about their response to blast loading. The harsh environment of the ABT makes accurate collection of this data very difficult. Current methods of data capture depend on interpretation of high-speed video footage, the accuracy of which is severely affected by shock wave induced camera shake. In a series of five companion static loading tests, two different methods of recording glass failure time were trialled; a circuit of conductive paint on the surface of the glass and a series of piezo transducers to record the acoustic profile at breakage. High-speed photography provided an independent correlation. Experimental results demonstrate that piezo transducers are a low-cost and comparatively accurate method of determining the time of glass failure and crack location in a static testing environment. In February 2017, a series of eight full-scale trials in the ABT demonstrated that piezo transducers were capable of replicating these results in a long-duration blast environment.

Text
CONFAB Paper UoS Sarah Monk_Simon Clubley - Accepted Manuscript
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More information

Submitted date: 6 June 2017
Accepted/In Press date: 1 September 2017
Published date: 3 September 2017
Venue - Dates: 2nd International Conference on Structural Safety Under Fire and Blast: CONFAB 2017, United Kingdom, 2017-09-10 - 2017-09-12
Organisations: Infrastructure Group, Southampton Marine & Maritime Institute, Education Hub

Identifiers

Local EPrints ID: 411113
URI: http://eprints.soton.ac.uk/id/eprint/411113
PURE UUID: f2410643-37eb-4522-a218-bd3416a1a3af
ORCID for Sarah Monk: ORCID iD orcid.org/0000-0002-0407-1493
ORCID for Simon Clubley: ORCID iD orcid.org/0000-0003-3779-242X

Catalogue record

Date deposited: 14 Jun 2017 16:31
Last modified: 07 Oct 2020 05:18

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