Elastic-plastic response spectra for exponential blast loading

Gantes, CJ; Pnevmatikos, NG

dc.contributor.author	Gantes, CJ	en
dc.contributor.author	Pnevmatikos, NG	en
dc.date.accessioned	2014-03-01T01:20:20Z
dc.date.available	2014-03-01T01:20:20Z
dc.date.issued	2004	en
dc.identifier.issn	0734-743X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15893
dc.subject	Blast loading	en
dc.subject	Dynamic analysis	en
dc.subject	Elastic-plastic response spectra	en
dc.subject	Exponential load distribution	en
dc.subject	Structural design	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computer software	en
dc.subject.other	Deformation	en
dc.subject.other	Elasticity	en
dc.subject.other	Equations of motion	en
dc.subject.other	Explosions	en
dc.subject.other	Plasticity	en
dc.subject.other	Structural design	en
dc.subject.other	Blast loading	en
dc.subject.other	Dynamic analysis	en
dc.subject.other	Elastic plastic response spectra	en
dc.subject.other	Exponential load distribution	en
dc.subject.other	Loads (forces)	en
dc.title	Elastic-plastic response spectra for exponential blast loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0734-743X(03)00077-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0734-743X(03)00077-0	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The design of structures subjected to loads due to explosions is often treated by means of elastic-plastic response spectra. Such spectra that are currently available in the literature were computed on the basis of triangular shape of blast pressure with respect to time. In the present paper, response spectra based on an exponential distribution of blast pressure, which is in better agreement to experimental data, are proposed. To that effect, analytical expressions of the solutions of the pertinent equations of motion have been obtained via symbolic manipulation software, and have been used to carry out an extensive parametric study. A comparison of the spectra obtained by the proposed approach to the existing ones, reveals that the commonly used assumption of triangular blast load evolution with time can sometimes be slightly unconservative, particularly for flexible structural systems, but can also be significantly overconservative for stiffer structures. (C) 2003 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Impact Engineering	en
dc.identifier.doi	10.1016/S0734-743X(03)00077-0	en
dc.identifier.isi	ISI:000188972100006	en
dc.identifier.volume	30	en
dc.identifier.issue	3	en
dc.identifier.spage	323	en
dc.identifier.epage	343	en