Conference Paper: Ultimate strength equation for pultruded CFRP plates in fire

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TitleUltimate strength equation for pultruded CFRP plates in fire
AuthorsWang, K
Young, B
Smith, ST
KeywordsElevated temperatures
Fire resistance
Pultruded CFRP plate
Ultimate strength equation
Issue Date2012
CitationThe 6th International Conference on FRP Composites in Civil Engineering (CICE 2012), Rome, Italy, 13-15 June 2012. In the 6th CICE Proceedings, 2012, p. 1-9 [How to Cite?]
AbstractThe paper presents a model for the ultimate strength calculation of fibre-reinforced polymer (FRP) pultruded plates in fire. The model is calibrated from a series of coupon tests on pultruded CFRP plates carried out using steady state and transient state test methods. In the steady state tests, temperatures ranging from ambient to approximately 700℃ were considered. The test specimens were heated to a specified temperature then loaded until failure while the same temperature was maintained throughout the test. Different periods of times of 5 and 30 minutes were maintained to investigate the effect of heating duration. In the transient state tests, the test specimens were loaded to a specified stress level prior to heating, and then the temperature was increased until failure of the test specimens. Three different stress levels applied to the pultruded CFRP plates were considered. Based on the test results, an ultimate strength equation is proposed which has been inspired from a model developed for metallic materials subjected to elevated temperatures. Application of the model is finally demonstrated in a worked example.
DC Field
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dc.contributor.authorWang, K
dc.contributor.authorYoung, B
dc.contributor.authorSmith, ST
dc.date.accessioned2012-09-20T08:23:12Z
dc.date.available2012-09-20T08:23:12Z
dc.date.issued2012
dc.description.abstractThe paper presents a model for the ultimate strength calculation of fibre-reinforced polymer (FRP) pultruded plates in fire. The model is calibrated from a series of coupon tests on pultruded CFRP plates carried out using steady state and transient state test methods. In the steady state tests, temperatures ranging from ambient to approximately 700℃ were considered. The test specimens were heated to a specified temperature then loaded until failure while the same temperature was maintained throughout the test. Different periods of times of 5 and 30 minutes were maintained to investigate the effect of heating duration. In the transient state tests, the test specimens were loaded to a specified stress level prior to heating, and then the temperature was increased until failure of the test specimens. Three different stress levels applied to the pultruded CFRP plates were considered. Based on the test results, an ultimate strength equation is proposed which has been inspired from a model developed for metallic materials subjected to elevated temperatures. Application of the model is finally demonstrated in a worked example.
dc.description.naturepostprint
dc.identifier.citationThe 6th International Conference on FRP Composites in Civil Engineering (CICE 2012), Rome, Italy, 13-15 June 2012. In the 6th CICE Proceedings, 2012, p. 1-9 [How to Cite?]
dc.identifier.epage9
dc.identifier.hkuros209569
dc.identifier.hkuros210161
dc.identifier.spage1
dc.identifier.urihttp://hdl.handle.net/10722/165786
dc.languageeng
dc.relation.ispartofProceedings of the 6th International Conference on FRP Composites in Civil Engineering, CICE 2012
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
dc.subjectElevated temperatures
dc.subjectFire resistance
dc.subjectPultruded CFRP plate
dc.subjectUltimate strength equation
dc.titleUltimate strength equation for pultruded CFRP plates in fire
dc.typeConference_Paper