【英文标准名称】:StandardTestMethodforSplittingTensileStrengthofIntactRockCoreSpecimens
【原文标准名称】:完整岩心试样张裂抗拉强度的标准试验方法
【标准号】:ASTMD3967-2008
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressiontesting;indirecttensilestrength;loadingtests;rock;splittingtensilestrength;tension(tensile)properties/tests;Compressiontesting--rock/relatedmaterials;Deformation--rock;Loadingtests--rock/relatedmaterials;Rockmaterials
【摘要】:Bydefinitionthetensilestrengthisobtainedbythedirectuniaxialtensiletest.Butthetensiletestisdifficultandexpensiveforroutineapplication.Thesplittingtensiletestappearstoofferadesirablealternative,becauseitismuchsimplerandinexpensive.Furthermore,engineersinvolvedinrockmechanicsdesignusuallydealwithcomplicatedstressfields,includingvariouscombinationsofcompressiveandtensilestressfields.Undersuchconditions,thetensilestrengthshouldbeobtainedwiththepresenceofcompressivestressestoberepresentativeofthefieldconditions.Thesplittingtensilestrengthtestisoneofthesimplesttestsinwhichsuchstressfieldsoccur.Sinceitiswidelyusedinpractice,auniformtestmethodisneededfordatatobecomparable.Auniformtestisalsoneededtoensurethatthediskspecimensbreakdiametrallyduetotensilepullingalongtheloadingdiameter.Note28212;Notwithstandingthestatementsonprecisionandbiascontainedinthistestmethod;theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.Reliabletestingdependsonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthesefactors.1.1Thistestmethodcoverstestingapparatus,specimenpreparation,andtestingproceduresfordeterminingthesplittingtensilestrengthofrockbydiametrallinecompressionofadisk.Note18212;Thetensilestrengthofrockdeterminedbytestsotherthanthestraightpulltestisdesignatedasthex201C;indirectx201D;tensilestrengthand,specifically,thevalueobtainedinSection9ofthistestistermedthex201C;splittingx201D;tensilestrength.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesaremathematicalconversionsandareprovidedforinformationonly.1.3Alldimensionandforcemeasurements,andstresscalculationsshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:4P.;A4
【正文语种】:英语