Irreversible thermodynamics based constitutive theory for fiber suspended polymeric liquids

Title
Irreversible thermodynamics based constitutive theory for fiber suspended polymeric liquids
Author(s)
박장민권태헌[권태헌]
Keywords
RHEOLOGICAL PROPERTIES; VISCOELASTIC MEDIA; REINFORCED THERMOPLASTICS; CLOSURE APPROXIMATION; ORIENTATION KINETICS; SHEAR-FLOW; SUSPENSIONS; MODEL; PARTICLES; EQUATIONS
Issue Date
201105
Publisher
JOURNAL RHEOLOGY AMER INST PHYSICS
Citation
JOURNAL OF RHEOLOGY, v.55, no.3, pp.517 - 543
Abstract
A rheological model for a short fiber suspension in polymeric liquid is proposed according to irreversible thermodynamics of viscoelastic deformation of polymers with the effect of fiber orientation taken into account. In this model, the evolution of elastic deformation tensor, namely, reversible Finger strain tensor, is governed by not only the reversible Finger strain tensor but also the fiber orientation tensor in a manner of a positive entropy production. The final form of stress tensor combines the viscoelasticity of polymeric matrix of the Leonov model and the fiber contribution of the Dinh-Armstrong model. The Folgar-Tucker model is employed for fiber orientation kinematics along with an invariant-based optimal fitting closure approximation. The rheological behavior of the model is comprehensively studied using steady and transient shear flows. (C) 2011 The Society of Rheology. [DOI: 10.1122/1.3568814]
URI
http://hdl.handle.net/YU.REPOSITORY/25214http://dx.doi.org/10.1122/1.3568814
ISSN
0148-6055
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공과대학 > 기계공학부 > Articles
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