Shock wave propagation in perspex spheres

Theocaris, PS; Marketos, E; Gillich, W

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Marketos, E	en
dc.contributor.author	Gillich, W	en
dc.date.accessioned	2014-03-01T01:37:40Z
dc.date.available	2014-03-01T01:37:40Z
dc.date.issued	1966	en
dc.identifier.issn	00207403	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21612
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-49949151537&partnerID=40&md5=a236309bd091d6bdd8ec608462fdfe14	en
dc.title	Shock wave propagation in perspex spheres	en
heal.type	journalArticle	en
heal.publicationDate	1966	en
heal.abstract	Explosives have been employed to generate low-pressure shock waves in Perspex spheres. The image of a line grating embedded in a meridian plane of a sphere interfered with a reference grating of slightly different pitch. The moiré pattern produced yielded the shock wave velocity, as well as the velocity at the cavity interface. Moreover, the particle velocity behind each shock wave has been evaluated directly from the moiré pattern. These three quantities together with the Rankine-Hugoniot hydrodynamic equations suffice for the complete determination of the state at each point behind the shock. An essential feature of the experiments was the quantitative study of the double shock structure resulting from the existence of time and rate dependence in the stress-strain relations of Perspex. Moreover, the distribution of strains and stresses behind the precursor and the shock wave have been evaluated from the moiré patterns. © 1966.	en
heal.journalName	International Journal of Mechanical Sciences	en
dc.identifier.volume	8	en
dc.identifier.issue	12	en
dc.identifier.spage	739	en
dc.identifier.epage	742	en