Study on the tensile strength of flexible composites based on Weibull model，2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）-中国聚合物网,论文下载

Study on the tensile strength of flexible composites based on Weibull model

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Flexible composites Woven fabric Weibull theory Tensile
strength Reliability analysis

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845K

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分子表征

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2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）

简介：

Thetensilestrengthofflexiblecompositesexhibitslargescattermainlyasaresultofthecomplexityandinteractionoffailuremodes,andmanufacturinginduceddefects.Apracticalapproachindesignforstrengthofflexiblecompositeswhichusesascharacteristicvaluesforstrength,themeanvaluesofexperimentalresultsmayleadtoseriousmisinterpretationsconcerningfailureonset,andthereliabilitylevelisnotalsotakenintoaccount.Aprobability-basedfailure-predictionapproachislikelytobeamoresuitablemethodofovercomingtheabovementioneddifficulties.Inthispaper,theexperimentaldataareprocessedbyWeibulltheoryandWeibullmoduluswerecalculatedby2-parameterand3-parameterWeibulldistribution.Furthermore,therelationshipbetweenWeibullmodulusandmechanicalpropertieswasstudied.Theresultsshowthatthetensilestrengthofflexiblecompositesispreferredtobeexpressedwith3-parameterWeibullmodel.Comparedwiththeaveragestrength,itismorereasonablethatthe5-percentilevaluewasusedasthedesignstrengthasfarasreliabilitylevelisconcerned.

作者：

WANG Zexing, JIANG Jinhua, CHEN Nanliang

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2010-03-17 11:00:17

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