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【英文标准名称】:Advancedtechnicalceramics-Mechanicalpropertiesofceramiccompositesatambienttemperature-Evaluationoftheresistancetocrackpropagationbynotchsensitivitytesting
【原文标准名称】:高技术陶瓷.室温下陶瓷复合材料的机械特性.通过切口灵敏度试验评定耐裂纹延伸性
【标准号】:BSEN13234-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-12-29
【实施或试行日期】:2006-12-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高级工业陶瓷;陶瓷;复合材料;耐裂纹延伸;防裂纹扩展;定义;评定;断裂韧性;材料试验;机械性能;刻槽灵敏度;有凹槽的;特性;耐力;试验设备;试验报告;试样;试验
【英文主题词】:
【摘要】:ThisEuropeanStandarddescribesamethodfortheclassificationofceramicmatrixcomposite(CMC)materialswithrespecttotheirsensitivitytocrackpropagationusingtensiletestsonnotchedspecimenswithdifferentnotchdepths.Twoclassesofceramicmatrixcompositematerialscanbedistinguished:materialswhosestrengthissensitivetothepresenceofnotchesandmaterialswhosestrengthisnotaffected.Forsensitivematerials,thisEuropeanStandarddefinesamethodfordeterminingequivalentfracturetoughness.Theparameter,Keq,isdefinedasthefracturetoughnessofahomogeneousmaterialwhichpresentsthesamesensitivitytocrackpropagationastheceramicmatrixcompositematerialwhichisbeingconsidered.ThedefinitionoftheKeqparameteroffersthepossibilitytocompareceramicmatrixcompositematerialswithothermaterialswithrespecttosensitivitytocrackpropagation.Fornotchinsensitivematerials,theconceptofKeqdoesnotapply.ThisEuropeanStandardappliestoallceramicmatrixcompositeswithacontinuousfibrereinforcement,unidirectional(1D),bidirectional(2D),andtridirectional(xD,where2【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:18P.;A4
【正文语种】:英语