A new general approach to derive normalised pressure impulse curves

Dragos, J; Wu, C

A new general approach to derive normalised pressure impulse curves

Dragos, J Wu, C

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Publication Type:: Journal Article
Citation:: International Journal of Impact Engineering, 2013, 62 pp. 1 - 12
Issue Date:: 2013-07-16

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Field	Value	Language
dc.contributor.author	Dragos, J	en_US
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934	en_US
dc.date.issued	2013-07-16	en_US
dc.identifier.citation	International Journal of Impact Engineering, 2013, 62 pp. 1 - 12	en_US
dc.identifier.issn	0734-743X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117526
dc.description.abstract	A pressure impulse (PI) diagram is an important tool used for the preliminary design of structural members against blasts. Normalised PI diagrams can be derived using single degree of freedom (SDOF) theory to quickly determine the PI diagram of a given structural member. In order to use PI diagrams for blasts occurring in various confined environments, characterised by irregular shaped pulse loads, an investigation into the effects of pulse shape on a given point on the normalised PI curve is undertaken. Relying on the concept of the effective pulse load, three parameters which define the shape of the effective pulse load are determined. These parameters are then used to derive a method for determining a point on the normalised PI curve for elastic, rigid plastic and elastic plastic hardening structural members. The overall procedure can be iterated to determine many points, thus forming the entire normalised PI curve. Due to the generality of this new approach, it can be applied to structural members subjected to any arbitrary pulse load as long as its response and failure are controlled by its flexural behaviour. © 2013 Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	International Journal of Impact Engineering	en_US
dc.relation.isbasedon	10.1016/j.ijimpeng.2013.05.005	en_US
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.title	A new general approach to derive normalised pressure impulse curves	en_US
dc.type	Journal Article
utslib.citation.volume	62	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0901 Aerospace Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	62	en_US

Abstract:

A pressure impulse (PI) diagram is an important tool used for the preliminary design of structural members against blasts. Normalised PI diagrams can be derived using single degree of freedom (SDOF) theory to quickly determine the PI diagram of a given structural member. In order to use PI diagrams for blasts occurring in various confined environments, characterised by irregular shaped pulse loads, an investigation into the effects of pulse shape on a given point on the normalised PI curve is undertaken. Relying on the concept of the effective pulse load, three parameters which define the shape of the effective pulse load are determined. These parameters are then used to derive a method for determining a point on the normalised PI curve for elastic, rigid plastic and elastic plastic hardening structural members. The overall procedure can be iterated to determine many points, thus forming the entire normalised PI curve. Due to the generality of this new approach, it can be applied to structural members subjected to any arbitrary pulse load as long as its response and failure are controlled by its flexural behaviour. © 2013 Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/117526