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【英文标准名称】:StandardTestMethodforShearStrengthofPlasticsbyPunchTool
【原文标准名称】:使用冲切机测定塑料的抗剪强度的标准试验方法
【标准号】:ASTMD732-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:punchtool;shearstrength;Organicplasticsheet/moldeddisks;Punchtool;Sheartesting--plastics;NumberCode83.080.01(Plastingeneral)
【摘要】:Shearstrengthobtainedbytheuseofpunch-typetoolingisoneoftherecognizedmethodsofcomparingmaterials,orobtainingdataforengineeringdesignpurposes,orboth.However,itmustberecognizedthatforend-useapplicationstherearelikelytobemanyfactorsnottakenintoaccountinthistestmethod,suchasstress-concentratinggeometriesandratesofshear,whichcanprofoundlyaffectthemeasuredshearstrength.Moreover,thefactthattheshearstrengthiscalculatedbydividingtheloadbytheareaoftheshearededge(punchcircumferenceXspecimenthickness)doesnotinterpretasindicatingtheshearstrengthvaluesoobtainedissolelyamaterialproperty,independentofthickness.Formanymaterials,itispossiblethatthereisaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1ofClassificationSystemD4000liststheASTMmaterialsstandardsthatcurrentlyexist.1.1Thistestmethodcoverstheprocedurefordeterminingtheshearstrengthofcompositematerialsintheformofsheets,plates,andmoldedshapesinthicknessesfrom1.27to12.7mm(0.050to0.500in.).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoknownISOequivalenttothisstandard.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语