ASTM D7336/D7336M-2007 蜂窝夹芯结构堆芯材料的静能吸收性能的标准试验方法

作者:标准资料网 时间:2024-05-13 05:56:19   浏览:8671   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforStaticEnergyAbsorptionPropertiesofHoneycombSandwichCoreMaterials
【原文标准名称】:蜂窝夹芯结构堆芯材料的静能吸收性能的标准试验方法
【标准号】:ASTMD7336/D7336M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D30.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:corematerial;crushstress;crushstroke;flatwisecompression;honeycomb;sandwich
【摘要】:Sandwichhoneycombcorematerialsareusedextensivelyinenergyabsorptionapplications,duetotheirabilitytosustaincompressiveloadingwhilebeingcrushed.Properdesignofenergyabsorptiondevicesutilizingsandwichhoneycombcorematerialsrequiresknowledgeofthecompressivecrushstressandcrushstrokepropertiesofthehoneycombcorematerial.Theprocedurescontainedwithinthisstandardareintendedtoassessthecrushstressandcrushstrokepropertiesofthesandwichhoneycombcorematerialunderstaticcompressiveloading.Thedynamiccrushstressofthehoneycombcorematerialmayvaryfromthatmeasuredunderstaticloading,dependinguponfactorssuchashoneycombcorematerialthickness,corematerialdensity,impactvelocity,etc.Thistestmethodprovidesastandardmethodofobtainingthecompressivecrushstressandcrushstrokeforsandwichhoneycombcorematerialstructuraldesignproperties,materialspecifications,researchanddevelopmentapplications,andqualityassurance.Thistestmethodisnotintendedforuseincrushtestingofstabilizedhoneycombcorematerials(forwhichtheedgesofthehoneycombcorematerialaredippedinresintoresistlocalcrushing)orsandwichspecimens(forwhichfacingsarebondedtothehoneycombcorematerial).Factorsthatinfluencethecompressivecrushstressandcrushstrokeandshallthereforebereportedincludethefollowing:honeycombcorematerial,methodsofmaterialfabrication,corematerialgeometry(nominalcellsize),corematerialdensity,specimengeometry,specimenpreparation,specimenconditioning,environmentoftesting,specimenalignment,pre-crushprocedure,pre-crushdepth,loadingprocedure,andspeedoftesting.1.1Thistestmethoddeterminesthestaticenergyabsorptionproperties(compressivecrushstressandcrushstroke)ofhoneycombsandwichcorematerials.Thesepropertiesareusuallydeterminedfordesignpurposesinadirectionnormaltotheplaneoffacingsasthehoneycombcorematerialwouldbeplacedinastructuralsandwichconstruction.1.2Permissiblecorematerialsarelimitedtothoseinhoneycombform.1.3Thistestmethodisnotintendedforuseincrushtestingofstabilizedhoneycombcorematerials(forwhichtheedgesofthehoneycombcorematerialaredippedinresintoresistlocalcrushing)orsandwichspecimens(forwhichfacingsarebondedtothehoneycombcorematerial).1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_140_99
【页数】:9P.;A4
【正文语种】:


下载地址: 点击此处下载
【英文标准名称】:NewTestMethodforAssessingDistillateFuelStorageStabilitybyOxygenOverpressure(05.03)
【原文标准名称】:用过厌氧法评价蒸馏燃料贮存稳定性的试验方法
【标准号】:ANSI/ASTMD5304-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;耐力;矿物油;储存;蒸馏的
【英文主题词】:storage;resistance;distillating;testing;mineraloils
【摘要】:
【中国标准分类号】:E31
【国际标准分类号】:75_080
【页数】:
【正文语种】:英语


基本信息
标准名称:织物厚度仪
中标分类:
发布部门:纺织工业部
发布日期:
实施日期:1994-06-01
首发日期:
作废日期:
归口单位:纺织部标准化研究院
起草单位:天津纺织标准检测中心
起草人:王承忠
出版日期:
页数:7页
适用范围

本规程适用于新制造、使用中及修理后的YG141型成相同类型织物厚度仪的检定。

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: