Phenomenical analysis of linear viscoelastic media

Theocaris, PS

dc.contributor.author	Theocaris, PS	en
dc.date.accessioned	2014-03-01T01:05:27Z
dc.date.available	2014-03-01T01:05:27Z
dc.date.issued	1966	en
dc.identifier.issn	0303402X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/8843
dc.subject	Characteristic Function	en
dc.subject	Constitutive Equation	en
dc.subject	Linear Viscoelasticity	en
dc.subject	Mechanical Property	en
dc.title	Phenomenical analysis of linear viscoelastic media	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01500044	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01500044	en
heal.publicationDate	1966	en
heal.abstract	Simple types of constitutive equations appropriate to materials exhibiting linear viscoelasticity are derived from approximate relationships interconnecting the characteristic functions which describe the transient mechanical properties of rheologically simple substances. It has been previously shown experimentally that the pair of differential or integral operators necessary to define the viscoelastic behaviour of a linear material along the whole viscoelastic spectrum may be reduced, to a high degree of approximation, to one operator relationship and an initial value. An indirect method is introduced which yields upper and lower bounds for the less sensitive characteristic functions expressing the bulk and the lateral contraction ratio variation. The constitutive equations for the bulk compliance and modulus, as well as the complementary lateral contraction ratio functions for creep and relaxation are expressed by simple product correction formulas, where the values of these functions at the n-subinternal of time are defined in terms of their corresponding initial values at the glassy or rubbery state multiplied by the ratios of the consecutive values of the corresponding extension compliance or modulus. The results checked well with extensive experimental evidence on various types of linear materials, as well as with the values calculated from the corresponding values of the other characteristic functions related to them. © 1966 Dr. Dietrich Steinkopff Verlag.	en
heal.publisher	Steinkopff-Verlag	en
heal.journalName	Kolloid-Zeitschrift & Zeitschrift für Polymere	en
dc.identifier.doi	10.1007/BF01500044	en
dc.identifier.volume	209	en
dc.identifier.issue	1	en
dc.identifier.spage	34	en
dc.identifier.epage	43	en