【英文标准名称】:StandardTestMethodforTensilePropertiesofPultrudedGlass-Fiber-ReinforcedPlasticRod
【原文标准名称】:挤拔玻璃纤维增强塑料棒张力特性的试验方法
【标准号】:ASTMD3916-2008
【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】:D20.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:glassreinforcedplastic;pultrudedrods;tensileproperties;Glass-fiber-reinforced(GRP)plastics;Plasticglass-fiber-reinforcedpultrudedrod;Reinforcedplastics;Reinforcedthermosettingplastics(RTP);Tensileproperties/testing--plastics
【摘要】:Thehighaxial-tensilestrengthandthelowtransverse-compressivestrengthofpultrudedrodcombinetopresentsomeuniqueproblemsindeterminingthetensilestrengthofthismaterialwithconventionaltestgrips.Thehightransverse-compressiveforcesgeneratedintheconventionalmethodofgrippingtendtocrushtherod,therebycausingprematurefailure.Inthistestmethod,aluminum-alloytabscontouredtotheshapeoftherodreducethecompressiveforcesimpartedtotherod,thusovercomingthedeleteriousinfluenceofconventionaltestgrips.Tensilepropertiesareinfluencedbyspecimenpreparation,strainrate,thermalhistory,andtheenvironmentalconditionsatthetimeoftesting.Consequently,whereprecisecomparativeresultsaredesired,thesefactorsmustbecarefullycontrolled.Tensilepropertiesprovideusefuldataformanyengineeringdesignpurposes.However,duetothehighsensitivityofthesepropertiestostrainrate,temperature,andotherenvironmentalconditions,dataobtainedbythistestmethodshouldnot,bythemselves,beconsideredforapplicationsinvolvingload-timescalesorenvironmentalconditionsthatdifferwidelyfromthetestconditions.Incaseswheresuchdissimilaritiesareapparent,thesensitivitiestostrainrate,includingimpactandcreep,aswellastoenvironment,shouldbedeterminedoverawiderangeofconditionsasdictatedbytheanticipatedservicerequirements.1.1Thistestmethoddescribesaprocedurefordeterminingthetensilepropertiesofpultruded,glass-fiber-reinforcedthermosettingplasticrodofdiametersrangingfrom3.2mm(1/8in.)to25.4mm(1in.).Littletestspecimenpreparationisrequired;however,reusablealuminumtabgripadapters(Fig.1)ofappropriatesizearerequiredtopreventprematurefailureofthespecimensatthegrips.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninNote3andNote4.Note18212;ThereisnoknownISOequivalenttothistestmethod.
【中国标准分类号】:G31
【国际标准分类号】:83_120
【页数】:5P.;A4
【正文语种】:英语

标准名称：	JGL40—2.5—01型两芯野战光缆连接器详细规范
英文名称：	JGL40-2.5-01 connectors, optical fiber cable, 2 positions, field, detail specification for
中标分类：
发布部门：	中华人民共和国电子工业部
发布日期：	1996-06-14
实施日期：	1996-06-14
首发日期：	1900-01-01
作废日期：	1900-01-01
出版社：	电子工业出版社
出版日期：	1996-06-14
页数：	7页

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