【英文标准名称】:StandardTestMethodforFlexuralStrengthofAdvancedCeramicsatAmbientTemperature-CylindricalRodStrength
【原文标准名称】:环境温度下高级陶瓷抗弯强度标准试验方法.圆柱杆强度
【标准号】:ASTMC1684-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C28.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:advancedceramics;cylinder;flexuralstrength;four-pointflexure;glass;rods;three-pointflexure
【摘要】:1.1Thistestmethodisforthedeterminationofflexuralstrengthofrodshapespecimensofadvancedceramicmaterialsatambienttemperature.Inmanyinstancesitispreferabletotestroundspecimensratherthanrectangularbendspecimens,especiallyifthematerialisfabricatedinrodform.Thismethodpermitstestingofmachined,drawn,oras-firedrodshapedspecimens.Itallowssomelatitudeintherodsizesandcrosssectionshapeuniformity.Roddiametersbetween1.5and8mmandlengthsfrom25to85mmarerecommended,butothersizesarepermitted.Four-point-1/4pointasshowninFig.1isthepreferredtestingconfiguration.Three-pointloadingispermitted.Thismethoddescribestheapparatus,specimenrequirements,testprocedure,calculations,andreportingrequirements.Themethodisapplicabletomonolithicorparticulate-orwhisker-reinforcedceramics.Itmayalsobeusedforglasses.Itisnotapplicabletocontinuousfiber-reinforcedceramiccomposites.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:21P.;A4
【正文语种】:英语


【英文标准名称】:Determinationofcoefficientoffrictionofbolt/nutassembliesunderspecifiedconditions
【原文标准名称】:规定条件下螺栓和螺母磨擦系数的测定
【标准号】:DIN946-1991
【标准状态】:现行
【国别】:德国
【发布日期】:1991-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:螺钉;机械试验;符号;数学计算;额定值;摩擦系数;紧固件;螺栓连接;螺母;试验;划痕试验程序;摩擦;图示
【英文主题词】:boltedjoints;testing;mathematicalcalculations;friction;symbols;screws(bolts);diagrams;scoringprocedures(tests);mechanicaltesting;nuts;fasteners;ratings;coefficientoffriction
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_01
【页数】:4P.;A4
【正文语种】:德语