Rigby, S., Fay, S., Tyas, A. et al. (2 more authors) (2015) Angle of Incidence Effects on Far-Field Positive and Negative Phase Blast Parameters. International Journal of Protective Structures, 6 (1). 23 - 42. ISSN 2041-4196
Abstract
The blast overpressure acting on a rigid target is known to vary between the normally reflected overpressure and the incident overpressure as a function of the angle between the target and the direction of travel of the blast wave. Literature guidance for determining the exact effects of angle of incidence are unclear, particularly when considering the negative phase. This paper presents the results from a series of well controlled experiments where pressure transducers are used to record the pressure-time history acting on the face of a large, rigid target at various angles of incidence for varying sizes of hemispherical PE4 charge and stand-off distances. The test data demonstrated remarkable repeatability, and excellent agreement with semi-empirical predictions for normally reflected overpressures. The oblique results show that peak overpressure, impulse and duration are highly dependent on angle of incidence for the positive phase, and are invariant of angle of incidence for the negative phase.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 Multi-Science Publishing. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Angle of Incidence; Blast; Experimental Validation; Negative Phase; Positive Phase; UFC-3-340-02 |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 25 Sep 2015 15:22 |
Last Modified: | 25 Sep 2015 15:22 |
Status: | Published |
Publisher: | Multi-Science Publishing |
Refereed: | Yes |
Identification Number: | 10.1260/2041-4196.6.1.23 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89004 |