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Failure Analysis Of Composite Laminates With A Hole By Using Finite Element Method

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Failure Analysis Of Composite Laminates With A Hole By Using Finite Element Method

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dc.contributor.author Roy, Moumita en_US
dc.date.accessioned 2007-08-23T01:56:28Z
dc.date.available 2007-08-23T01:56:28Z
dc.date.issued 2007-08-23T01:56:28Z
dc.date.submitted December 2005 en_US
dc.identifier.other DISS-1115 en_US
dc.identifier.uri http://hdl.handle.net/10106/311
dc.description.abstract Predicting the strength of a given laminate has been extensively studied. There have been several fracture models proposed but still the immense tests of composite laminates are still needed. Different material systems or lay-ups exhibit different failure modes and failure mechanisms. This thesis focuses in investigation of the failure mechanism of the [±θ/02]s and [02/±θ]s laminates with a hole. ANSYS finite element models with and without a crack in vicinity of hole were developed to investigate the effect of the stress distribution due to the presence of the angle ply crack. The stress concentrations were obtained. It is found that The stress concentrations increases as d/w increases for a given θ in [±θ/02]s and [02/±θ]s laminates For a given d/w ratio, the stress concentrations increases as ply orientation,θ increases The high stress concentrations on 0o ply occurs at the location where the θ-ply crack intercepts at the line perpendicular to the 0o ply Based upon the understanding the failure mechanism, a simple expression to estimate the strength of laminates with a hole is established. A strength model based upon the 0o ply load carrying capability is proposed. Prediction is a good agreement with the experimental results. en_US
dc.description.sponsorship Chan, Wen en_US
dc.language.iso EN en_US
dc.publisher Mechanical Engineering en_US
dc.title Failure Analysis Of Composite Laminates With A Hole By Using Finite Element Method en_US
dc.type M.S.M.E. en_US
dc.contributor.committeeChair Chan, Wen en_US
dc.degree.department Mechanical Engineering en_US
dc.degree.discipline Mechanical Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level masters en_US
dc.degree.name M.S.M.E. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=229
dc.identifier.externalLinkDescription Link to Research Profiles

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