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The Microdroplet Test: Experimental and Finite Element Analysis of the Dependence of Failure Mode on Droplet Shape

Hodzic, Alma; Kalyanasundaram, Shankar; Lowe, Adrian; Stachurski, Zbigniew

Description

The microdroplet technique is usually designed as a fibre embedded in a drop of resin and subsequently pulled out while the drop is being supported by two knife edges, resulting in either debonding of the droplets from the fibres, or breakage of the fibres before debonding can occur. In this study, the microdroplet technique was performed using a platinum ring with a 40 μm hole instead of the usual two knife edges, giving an axisymmetric geometry, load and stress distribution. Glass/phenolic...[Show more]

dc.contributor.authorHodzic, Alma
dc.contributor.authorKalyanasundaram, Shankar
dc.contributor.authorLowe, Adrian
dc.contributor.authorStachurski, Zbigniew
dc.date.accessioned2015-12-13T23:22:35Z
dc.identifier.issn0927-6440
dc.identifier.urihttp://hdl.handle.net/1885/91525
dc.description.abstractThe microdroplet technique is usually designed as a fibre embedded in a drop of resin and subsequently pulled out while the drop is being supported by two knife edges, resulting in either debonding of the droplets from the fibres, or breakage of the fibres before debonding can occur. In this study, the microdroplet technique was performed using a platinum ring with a 40 μm hole instead of the usual two knife edges, giving an axisymmetric geometry, load and stress distribution. Glass/phenolic and glass/polyester composite systems were tested experimentally and subsequent finite element modelling studies were performed to assess the variation of droplet size, and contact angle between the droplet and fibre. It was found that contact angle is of major influence in the proposed failure model. This study characterizes the influence of the contact angle between the droplet and the fibre on the subsequent stress distribution in the microdroplet specimen.
dc.publisherVSP
dc.sourceComposite Interfaces
dc.subjectKeywords: Composite micromechanics; Contact angle; Crack propagation; Epoxy resins; Failure (mechanical); Failure analysis; Finite element method; Glass; Materials testing; Mathematical models; Stress concentration; Composite interface; Debonding; Microdroplet tech
dc.titleThe Microdroplet Test: Experimental and Finite Element Analysis of the Dependence of Failure Mode on Droplet Shape
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume6(3)
dc.date.issued1999
local.identifier.absfor091202 - Composite and Hybrid Materials
local.identifier.ariespublicationMigratedxPub22289
local.type.statusPublished Version
local.contributor.affiliationHodzic, Alma, College of Engineering and Computer Science, ANU
local.contributor.affiliationKalyanasundaram, Shankar, College of Engineering and Computer Science, ANU
local.contributor.affiliationLowe, Adrian, College of Engineering and Computer Science, ANU
local.contributor.affiliationStachurski, Zbigniew, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage375
local.bibliographicCitation.lastpage389
dc.date.updated2015-12-12T09:11:42Z
local.identifier.scopusID2-s2.0-0033359847
CollectionsANU Research Publications

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