Determination of the Relationship between Strength and Test Method for Glass Fibre Epoxy Composite Coupons using Weibull analysis

2.50
Hdl Handle:
http://hdl.handle.net/2436/29605
Title:
Determination of the Relationship between Strength and Test Method for Glass Fibre Epoxy Composite Coupons using Weibull analysis
Authors:
Cattell, M. K.; Kibble, Kevin A.
Abstract:
Glass fibre epoxy composite test coupons exhibit variability in their tensile strength data dependent on the test method used. The three common test standards are for tensile, three-point flexure and four-point flexure and it is accepted that flexure tests yield higher strengths than tensile tests. Tests were carried out on coupons of a woven E-glass epoxy composite for each type of test. The data for each test was found to fit a two-parameter Weibull distribution. The Weibull moduli for each of the test methods were approximately the same. This Weibull modulus is used to relate the strengths for different test methods using an equivalent volume method. It was found that the strength variability is dependent only on the equivalent volumes of test coupons and thus, a method is proposed for the prediction of tensile strengths from flexural strength tests and vice versa.
Citation:
Materials and Design, 22(4): 245-250
Publisher:
Amsterdam: Elsevier
Journal:
Materials and Design
Issue Date:
2001
URI:
http://hdl.handle.net/2436/29605
DOI:
10.1016/S0261-3069(00)00096-0
Additional Links:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TX5-4286KX2-1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2e86f911f9080255d5a777e8df9d4108; http://direct.bl.uk/bld/PlaceOrder.do?UIN=091347880&ETOC=RN&from=searchengine
Type:
Article
Language:
en
Description:
The paper offers a practical approach to applying probability statistics to composites. A method is presented for the prediction of tensile strengths from flexural strength tests and vice versa and that quantifies how processing affects mechanical properties with respect to component size. This quantification was used by GKN Technology to evaluate manufacture before fatigue testing of composites.
ISSN:
02613069
Appears in Collections:
Engineering and Technology

Full metadata record

DC FieldValue Language
dc.contributor.authorCattell, M. K.-
dc.contributor.authorKibble, Kevin A.-
dc.date.accessioned2008-06-06T13:53:21Z-
dc.date.available2008-06-06T13:53:21Z-
dc.date.issued2001-
dc.identifier.citationMaterials and Design, 22(4): 245-250en
dc.identifier.issn02613069-
dc.identifier.doi10.1016/S0261-3069(00)00096-0-
dc.identifier.urihttp://hdl.handle.net/2436/29605-
dc.descriptionThe paper offers a practical approach to applying probability statistics to composites. A method is presented for the prediction of tensile strengths from flexural strength tests and vice versa and that quantifies how processing affects mechanical properties with respect to component size. This quantification was used by GKN Technology to evaluate manufacture before fatigue testing of composites.en
dc.description.abstractGlass fibre epoxy composite test coupons exhibit variability in their tensile strength data dependent on the test method used. The three common test standards are for tensile, three-point flexure and four-point flexure and it is accepted that flexure tests yield higher strengths than tensile tests. Tests were carried out on coupons of a woven E-glass epoxy composite for each type of test. The data for each test was found to fit a two-parameter Weibull distribution. The Weibull moduli for each of the test methods were approximately the same. This Weibull modulus is used to relate the strengths for different test methods using an equivalent volume method. It was found that the strength variability is dependent only on the equivalent volumes of test coupons and thus, a method is proposed for the prediction of tensile strengths from flexural strength tests and vice versa.en
dc.language.isoenen
dc.publisherAmsterdam: Elsevieren
dc.relation.urlhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TX5-4286KX2-1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2e86f911f9080255d5a777e8df9d4108en
dc.relation.urlhttp://direct.bl.uk/bld/PlaceOrder.do?UIN=091347880&ETOC=RN&from=searchengineen
dc.subjectProbabilityen
dc.subjectCompositesen
dc.subjectTensile strengthen
dc.subjectFlexural strengthen
dc.subjectMechanical propertiesen
dc.subjectGKN Technologyen
dc.subjectEngineering technologyen
dc.subjectComposites polymer matrixen
dc.subjectWeibull analysisen
dc.titleDetermination of the Relationship between Strength and Test Method for Glass Fibre Epoxy Composite Coupons using Weibull analysisen
dc.typeArticleen
dc.identifier.journalMaterials and Designen
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