Fully coupled heat conduction and deformation analyses of nonlinear viscoelastic composites

Handle URI:
http://hdl.handle.net/10754/562166
Title:
Fully coupled heat conduction and deformation analyses of nonlinear viscoelastic composites
Authors:
Khan, Kamran; Muliana, Anastasia Hanifah
Abstract:
This study presents an integrated micromechanical model-finite element framework for analyzing coupled heat conduction and deformations of particle-reinforced composite structures. A simplified micromechanical model consisting of four sub-cells, i.e., one particle and three matrix sub-cells is formulated to obtain the effective thermomechanical properties and micro-macro field variables due to coupled heat conduction and nonlinear thermoviscoelastic deformation of a particulate composite that takes into account the dissipation of energy from the viscoelastic constituents. A time integration algorithm for simultaneously solving the equations that govern heat conduction and thermoviscoelastic deformations of isotropic homogeneous materials is developed. The algorithm is then integrated to the proposed micromechanical model. A significant temperature generation due to the dissipation effect in the viscoelastic matrix was observed when the composite body is subjected to cyclic mechanical loadings. Heat conduction due to the dissipation of the energy cannot be ignored in predicting the factual temperature and deformation fields within the composite structure, subjected to cyclic loading for a long period. A higher creep resistant matrix material or adding elastic particles can lower the temperature generation. Our analyses suggest that using particulate composites and functionally graded materials can reduce the heat generation due to energy dissipation. © 2012 Elsevier Ltd.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier BV
Journal:
Composite Structures
Issue Date:
May-2012
DOI:
10.1016/j.compstruct.2012.01.010
Type:
Article
ISSN:
02638223
Sponsors:
This research is supported by the Air Force Office of Scientific Research (AFOSR) under Grant No. FA 9550-10-1-0002. We also thanks the Texas A&M Supercomputing Facility (http://sc.tamu.edu/) for providing computing resources useful in conducting the research reported in this paper.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Kamranen
dc.contributor.authorMuliana, Anastasia Hanifahen
dc.date.accessioned2015-08-03T09:46:18Zen
dc.date.available2015-08-03T09:46:18Zen
dc.date.issued2012-05en
dc.identifier.issn02638223en
dc.identifier.doi10.1016/j.compstruct.2012.01.010en
dc.identifier.urihttp://hdl.handle.net/10754/562166en
dc.description.abstractThis study presents an integrated micromechanical model-finite element framework for analyzing coupled heat conduction and deformations of particle-reinforced composite structures. A simplified micromechanical model consisting of four sub-cells, i.e., one particle and three matrix sub-cells is formulated to obtain the effective thermomechanical properties and micro-macro field variables due to coupled heat conduction and nonlinear thermoviscoelastic deformation of a particulate composite that takes into account the dissipation of energy from the viscoelastic constituents. A time integration algorithm for simultaneously solving the equations that govern heat conduction and thermoviscoelastic deformations of isotropic homogeneous materials is developed. The algorithm is then integrated to the proposed micromechanical model. A significant temperature generation due to the dissipation effect in the viscoelastic matrix was observed when the composite body is subjected to cyclic mechanical loadings. Heat conduction due to the dissipation of the energy cannot be ignored in predicting the factual temperature and deformation fields within the composite structure, subjected to cyclic loading for a long period. A higher creep resistant matrix material or adding elastic particles can lower the temperature generation. Our analyses suggest that using particulate composites and functionally graded materials can reduce the heat generation due to energy dissipation. © 2012 Elsevier Ltd.en
dc.description.sponsorshipThis research is supported by the Air Force Office of Scientific Research (AFOSR) under Grant No. FA 9550-10-1-0002. We also thanks the Texas A&M Supercomputing Facility (http://sc.tamu.edu/) for providing computing resources useful in conducting the research reported in this paper.en
dc.publisherElsevier BVen
dc.subjectConductionen
dc.subjectCoupled thermoviscoelasticityen
dc.subjectCyclic loadingen
dc.subjectDissipation in compositesen
dc.subjectHeat generationen
dc.subjectParticulate compositesen
dc.titleFully coupled heat conduction and deformation analyses of nonlinear viscoelastic compositesen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalComposite Structuresen
dc.contributor.institutionDepartment of Mechanical Engineering, Texas A and M University, College Station, TX 77843-3123, United Statesen
kaust.authorKhan, Kamranen
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