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Study on the tensile strength of flexible composites based on Weibull model  
Study on the tensile strength of flexible composites based on Weibull model
資料類型: PDF文件
關(guān)鍵詞: Flexible  composites  Woven  fabric  Weibull  theory  Tensile  
strength  Reliability  analysis  
資料大?。?/td> 845K
所屬學(xué)科: 分子表征
來源: 2009先進(jìn)纖維與聚合物材料國際學(xué)術(shù)會議(ICAFPM,10.21-10.24,上海)
簡介:
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
上傳時間: 2010-03-17 11:00:17
下載次數(shù): 2
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