Determination of the true stress-strain behaviour of polypropylene

Kontou, E; Farasoglou, P

dc.contributor.author	Kontou, E	en
dc.contributor.author	Farasoglou, P	en
dc.date.accessioned	2014-03-01T01:13:40Z
dc.date.available	2014-03-01T01:13:40Z
dc.date.issued	1998	en
dc.identifier.issn	0022-2461	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12649
dc.subject	Constitutive Model	en
dc.subject	Polypropylene	en
dc.subject	Strain Hardening	en
dc.subject	Strain Measurement	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Compression testing	en
dc.subject.other	Crystalline materials	en
dc.subject.other	Mathematical models	en
dc.subject.other	Strain	en
dc.subject.other	Stresses	en
dc.subject.other	Tensile properties	en
dc.subject.other	Viscoelasticity	en
dc.subject.other	Viscoplasticity	en
dc.subject.other	Compressive stress	en
dc.subject.other	Constitutive model	en
dc.subject.other	Stress-strain curves	en
dc.subject.other	Polypropylenes	en
dc.title	Determination of the true stress-strain behaviour of polypropylene	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/A:1004358015983	en
heal.identifier.secondary	http://dx.doi.org/10.1023/A:1004358015983	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	The true tensile and compressive stress strain curves for a typical semicrystalline polymer (polypropylene) were constructed with a new experimental technique. This is based on a non-contact method of strain measurement along the specimen gauge length. The viscoplastic behaviour obtained in this manner was then described with a nonlinear viscoelastic constitutive model mentioned analytically elsewhere. This consideration leads to a satisfactory description of yield and post yield behaviour, including strain softening, and strain hardening. The rate effect was also predicted with a high accuracy.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	Journal of Materials Science	en
dc.identifier.doi	10.1023/A:1004358015983	en
dc.identifier.isi	ISI:000071065300021	en
dc.identifier.volume	33	en
dc.identifier.issue	1	en
dc.identifier.spage	147	en
dc.identifier.epage	153	en