Experimental and theoretical description of the plastic behaviour of semicrystalline polymers

Spathis, G; Kontou, E

dc.contributor.author	Spathis, G	en
dc.contributor.author	Kontou, E	en
dc.date.accessioned	2014-03-01T01:13:45Z
dc.date.available	2014-03-01T01:13:45Z
dc.date.issued	1998	en
dc.identifier.issn	0032-3861	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12700
dc.subject	Plastic behaviour	en
dc.subject	Semicrystalline polymers	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Mathematical models	en
dc.subject.other	Plastic deformation	en
dc.subject.other	Plasticity	en
dc.subject.other	Strain hardening	en
dc.subject.other	Semicrystalline polymers	en
dc.subject.other	Polycrystalline materials	en
dc.title	Experimental and theoretical description of the plastic behaviour of semicrystalline polymers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0032-3861(97)00221-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0032-3861(97)00221-8	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	In this work, a new experimental technique, based on a non-contact method of strain measurement, has been applied in the case of semicrystalline polymers, where yielding occurs through inhomogeneous deformation (necking). It was then possible to construct the true stress-strain curves at various crosshead speeds tested. Furthermore, a constitutive model for the description of this behaviour has been introduced, grounded on a plasticity theory, which has been developed and initially applied on plastic behaviour of crystalline metals. This theoretical model was proved to predict satisfactorily the experimental results. Moreover, the rate effect and the post yield phenomena, as possible strain softening and strain hardening have also been described in terms of molecular parameters connected with the material tested. (C) 1997 Elsevier Science Ltd.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Polymer	en
dc.identifier.doi	10.1016/S0032-3861(97)00221-8	en
dc.identifier.isi	ISI:A1998YH13400018	en
dc.identifier.volume	39	en
dc.identifier.issue	1	en
dc.identifier.spage	135	en
dc.identifier.epage	142	en