Mechanical model for the prediction of the elastic properties of polymeric resins reinforced with liquid crystal polymers

Blanas, AM; Kontou; Spathis, G

dc.contributor.author	Blanas, AM	en
dc.contributor.author	Kontou	en
dc.contributor.author	Spathis, G	en
dc.date.accessioned	2014-03-01T01:14:19Z
dc.date.available	2014-03-01T01:14:19Z
dc.date.issued	1999	en
dc.identifier.issn	0731-6844	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12992
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0032670660&partnerID=40&md5=1e1f0a3601714545348f26757adcd2cc	en
dc.subject	short fiber composites	en
dc.subject	liquid crystalline polymers	en
dc.subject	micromechanics	en
dc.subject	finite element analysis	en
dc.subject	effective properties	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Composite micromechanics	en
dc.subject.other	Elasticity	en
dc.subject.other	Finite element method	en
dc.subject.other	Liquid crystal polymers	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Tensile testing	en
dc.subject.other	Volume fraction	en
dc.subject.other	Displacement	en
dc.subject.other	Mechanical loading	en
dc.subject.other	Short fiber composites	en
dc.subject.other	Stress fields	en
dc.subject.other	Fiber reinforced plastics	en
dc.title	Mechanical model for the prediction of the elastic properties of polymeric resins reinforced with liquid crystal polymers	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	The mechanical behavior of semicrystalline polymeric resins reinforced with short fiber liquid crystal polymers (LCP) under mechanical loading has been investigated. A micromechanical approach is considered and a representative unit cell model is developed and employed in conjunction with the finite element method of analysis to predict the effective elastic properties of the composite. The advantage of such an approach is that it could contain an improved reference to the microstructural elements by including their geometric description and their non-isotropic behavior. In the present work, the composite is assumed to be macroscopically homogeneous and linearly elastic with periodic fiber distribution array. The finite element method was used in the solution of the micromechanical boundary value problem. Three-dimensional models of the representative unit cell were generated. Models with varying short fiber geometry and volume fractions were developed and a number of boundary conditions and loading cases were used in the analysis. Displacement and stress fields in the composite are obtained and used in the calculation of the effective composite properties. Polypropylene composites reinforced with short fiber Vectra LCP in various volume fractions were fabricated. Tensile experiments were performed. The model predicted effective properties are in good agreement with micromechanical equations values and experimental results.	en
heal.publisher	Technomic Publ Co Inc, Lancaster, PA, United States	en
heal.journalName	Journal of Reinforced Plastics and Composites	en
dc.identifier.isi	ISI:000080242000001	en
dc.identifier.volume	18	en
dc.identifier.issue	5	en
dc.identifier.spage	390	en
dc.identifier.epage	412	en