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dc.contributor.advisorWegner, Leon D.en_US
dc.creatorDel Frari, Gregory Alberten_US
dc.date.accessioned2005-03-23T18:27:30Zen_US
dc.date.accessioned2013-01-04T04:27:10Z
dc.date.available2005-03-24T08:00:00Zen_US
dc.date.available2013-01-04T04:27:10Z
dc.date.created2005-03en_US
dc.date.issued2005-03-17en_US
dc.date.submittedMarch 2005en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-03232005-182730en_US
dc.description.abstractThe microstructure-property relationship for interpenetrating phase composites (IPCs) is currently poorly understood. In an attempt to improve this understanding this study focused on one particular part of this relationship: the effect of phase shape on the elastic and plastic behaviour. A review of previous research showed that investigations had linked phase shape to the elastic and plastic behaviour of various inclusion reinforced composites, but that no similar work had been completed for IPCs. To study the complex response of the IPC microstructure under load, a numerical modelling analysis using the finite element method (FEM) was undertaken. Two three-dimensional models of IPCs were created, the first consisting of an interconnected spherical phase with the interstitial space forming the other interconnected phase, and the second replacing the spherical phase with an interconnected cylindrical phase. With the simulation of a uniaxial tension test under elastic and plastic conditions, these two models exhibited different responses based on the shape of the phases. Results from an analysis of the macroscopic behaviour identified that the cylindrical model produced greater effective properties than the spherical model at the same volume fraction. The influence of phase shape was connected to the increased contiguity of the superior phase within the IPC for the cylindrical model, which allowed similar levels of long-range continuity with smaller amounts of the superior phase (compared to the spherical model). An examination of microstructural stress distributions showed that preferential stress transfer occurred along paths of low compliance. This provided an explanation of how the improved contiguity of the stiffer (or stronger) phase could enhance the macroscopic effective properties of an IPC. Contiguity of the stronger phase was particularly important for plastic behaviour, where early yielding of the weaker phase requires the stronger phase to carry nearly all the load within itself.en_US
dc.language.isoen_USen_US
dc.subjectcontinuityen_US
dc.subjectcontiguityen_US
dc.subjectbehaviouren_US
dc.subjectmechanicalen_US
dc.subjectfinite element methoden_US
dc.subjectco-continuousen_US
dc.subjectinterpenetrating phase compositesen_US
dc.subjectmicrostructuralen_US
dc.subjectshapeen_US
dc.subjectelasticen_US
dc.subjectplasticen_US
dc.titleThe influence of the microstructural shape on the mechanical behaviour of interpenetrating phase compositesen_US
thesis.degree.departmentCivil Engineeringen_US
thesis.degree.disciplineCivil Engineeringen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberYannacopoulos, Spiroen_US
dc.contributor.committeeMemberSparling, Bruce F.en_US
dc.contributor.committeeMemberPeng, Jianen_US
dc.contributor.committeeMemberBoulfiza, Mohameden_US


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