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【英文标准名称】:TestMethodforMeasuringtheDynamicMechanicalPropertiesofPlasticsUsingaDualCantileverBeam(08.03)
【原文标准名称】:用双悬臂束测试塑料动态机械特性的方法
【标准号】:ANSI/ASTMD5418-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:2001-09-25
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:弹性模量
【英文主题词】:modulusofelasticity
【摘要】:Thistestmethodoutlinestheuseofdynamicmechanicalinstrumentationfordeterminingandreportingtheviscoelasticpropertiesofthermoplasticandthermosettingresinsandcompositesystemsintheformofrectangularbarsmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Theelasticmodulusdatageneratedmaybeusedtoidentifythethermomechanicalpropertiesofaplasticsmaterialorcomposition.Thistestmethodisintendedtoprovideameansfordeterminingtheviscoelasticpropertiesofawidevarietyofplasticsusingnonresonant,forced-vibrationtechniquesasoutlinedinPracticeD4065.Inparticular,thismethodidentifiestheproceduresusedtomeasurepropertiesusingwhatisknownasadual-cantileverbeamflexurearrangement.Plotsoftheelastic(storage)modulus,loss(viscous)modulus,andcomplexmodulus,andtandeltaasafunctionoffrequency,time,ortemperatureareindicativeofsignificanttransitionsinthethermomechanicalperformanceofthepolymericmaterialsystems.Thistestmethodisvalidforawiderangeoffrequencies,typicallyfrom0.01to100Hz.Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciled,withoutchangingtheobserveddata,byreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnoknownISOequivalenttothisstandard.
【中国标准分类号】:E30
【国际标准分类号】:83_140_01
【页数】:
【正文语种】:英语


【英文标准名称】:Methodsoftestforpalletjoints-Part2:Determinationofwithdrawalandheadpull-throughresistanceofpalletnailsandstaples
【原文标准名称】:托盘连接件的试验方法第2部分:托盘用钉子和U形钉的抗拉试验
【标准号】:ISO12777-2-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC51
【标准类型】:()
【标准水平】:()
【中文主题词】:拨拉试验;托盘;定位销;连接元件;卡箍;钉子;试验;紧固件;定义;耐力
【英文主题词】:Axialforce;Clampingconnections;Clips;Connections;Definitions;Dowels;Excerpt;Fasteners;Joiningelements;Nailedjoints;Nails;Packages;Pallets;Parameters;Pull-outforces;Pull-outtests;Resistance;Stress;Testing;Withdrawalcapacity
【摘要】:ThispartofISO12777specifiesmethodsofdeterminingtheresistanceofpalletnailsandstaplestoaxialloadbyspecifyingtestmethodsfordetermining:a)characteristicsandmaximumloadforaxiallyloadednailedorstapledjoints(woodtowood);b)characteristicsandmaximumloadforaxiallyloadednailedorstapledjoints(forwoodtowood-basedmaterialsandwoodtonon-wood-basedmaterials,suchasplastics).Thesetestmethodsapplytojointswithalltypesofnailsupto7mmindiameter(includingplainroundshank,square,fluted,twisted,helicalandannularthreaded)andmayalsobesuitableforotherfastenerssuchaswoodstaples.
【中国标准分类号】:A85
【国际标准分类号】:21_060_50;21_060_70;55_180_20
【页数】:10P.;A4
【正文语种】:英语