Product Code:SAE AMS3328
Title:Fluorosilicone (FVMQ) Rubber Fuel and Oil Resistant 35 - 45
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a fluorosilicone (FVMQ) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.【英文标准名称】:StandardTestMethodsforStructuralPanelsinPlanarShear(RollingShear)
【原文标准名称】:结构受力壁板平面剪切(滚剪)的试验方法
【标准号】:ASTMD2718-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D07.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:施工材料;试验;木材
【英文主题词】:shear;sheardistortion;shearproperties;structuralpanels
【摘要】:1.1Thesetestmethodsdeterminetheshearpropertiesofstructuralpanelsassociatedwithsheardistortionoftheplanesparalleltotheedgeplanesofthepanels.Bothshearstrengthandmodulusofrigiditymaybedetermined.Primarily,thetestsmeasuretheplanarshear(rollingshear)strengthdevelopedintheplaneofthepanel.1.2Structuralpanelsinuseincludeplywood,waferboard,orientedstrandboard,andcompositesofveneerandofwood-basedlayers.1.3Twotestmethodsareincluded:1.3.1TestMethodAPlanarshearloadedbyplates.1.3.2TestMethodBPlanarshearinducedbyfive-pointbending.1.3.3Thechoiceofmethodwillbedictatedbythepurposeofthetestandequipmentavailable.1.3.4TestMethodA,PlanarShearLoadedbyPlatesThistestmethodusesarectangularpanelsectionadheredbetweensteelplateswithprotrudingknifeedgestocreateloadatthepanelfaces.Thistestmethodhasbeenusedtodevelopshearpropertiesofplywoodandorientedstrandboardforthepurposeofconfirmingdesignvalues.Thistestmethoddoesnotproducepureshear,butthespecimenlengthisprescribedsothatthesecondarystresseshaveaminimumeffect.Themethoddeterminesshearstrengthandmodulusofrigidity.1.3.5TestMethodB,PlanarShearInducedbyFive-PointBendingPlanarshearstressisinducedonthepanelwhileloadedinbendingusingtwocontinuousspans.Thistestmethoddeterminesplanarshearstrengthconsistentwithpanelapplicationsundertransverseloading.Thistestmethodisabletodetermineshearstrengthatanymoisturecondition.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4Thespecimenhavingtheformofarectangularflatplateisbondedbetweensteelplatesbeveledatoppositeendsofthespecimentoprovideknifeedgesforloadingtheplateatthefacebondedtothespecimen.Theknifeedgesprojectbeyondtheendsofthespecimen.Thistestmethodisconductedbyloadingtheknifeedgesincompressionatauniformratewhileasuitablegagemeasuresslipbetweentheplatesduetospecimendeformation.Shearstrengthiscomputedfrommaximumload,andeffectiveshearmodulusforthespecimenisdeterminedfromaplotofloadversusslip.1.5Specimensaretestedinatwo-spancontinuousbeamsupportconfigurationwithlineloadsappliedatmidspanofeachspanasshownin.Inducedshearstressesareconsistentwiththosedevelopedinconventionalpanelapplicationsundertransverseloading.Specimensmaybetestedinanymoisturecondition.Note1Researchthatledtothedevelopmentofthetestmethodisavailable.,Researchonthetestmethod''susefulnessfordeterminingelasticconstantsisalsoavailable.
【中国标准分类号】:P23
【国际标准分类号】:79_060_10
【页数】:6P.;A4
【正文语种】: