ASTM D7137/D7137M-2007 损坏聚合物基体复合板的残余压力强度的标准试验方法

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【英文标准名称】:StandardTestMethodforCompressiveResidualStrengthPropertiesofDamagedPolymerMatrixCompositePlates
【原文标准名称】:损坏聚合物基体复合板的残余压力强度的标准试验方法
【标准号】:ASTMD7137/D7137M-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】:D30.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compositematerials;compressionafterimpact;compressiontesting;compressiveresidualstrength;damagetolerance
【摘要】:1.1Thistestmethodcoverscompressionresidualstrengthpropertiesofmultidirectionalpolymermatrixcompositelaminatedplates,whichhavebeensubjectedtoquasi-staticindentationperTestMethodD6264/D6264Mordrop-weightimpactperTestMethodD7136/D7136Mpriortoapplicationofcompressiveforce.Thecompositematerialformsarelimitedtocontinuous-fiberreinforcedpolymermatrixcompositeswithmultidirectionalfiberorientations,andwhicharebothsymmetricandbalancedwithrespecttothetestdirection.Therangeofacceptabletestlaminatesandthicknessesisdefinedin8.2.Note1Whenusedtodeterminetheresidualstrengthofdrop-weightimpactedplates,thistestmethodiscommonlyreferredtoastheCompressionAfterImpact,orCAI,method.1.2Themethodutilizesaflat,rectangularcompositeplate,previouslysubjectedtoadamagingevent,whichistestedundercompressiveloadingusingastabilizationfixture.Note2Thedamagetolerancepropertiesobtainedareparticulartothetype,geometryandlocationofdamageinflictedupontheplate.1.3Thepropertiesgeneratedbythistestmethodarehighlydependentuponseveralfactors,whichincludespecimengeometry,layup,damagetype,damagesize,damagelocation,andboundaryconditions.Thus,resultsaregenerallynotscalabletootherconfigurations,andareparticulartothecombinationofgeometricandphysicalconditionstested.1.4Thistestmethodcanbeusedtotestundamagedpolymermatrixcompositeplates,buthistoricallysuchtestshavedemonstratedarelativelyhighincidenceofundesirablefailuremodes(suchasendcrushing).TestMethodD6641/D6641Misrecommendedforobtainingcompressivepropertiesofundamagedpolymermatrixcomposites.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_120
【页数】:17P.;A4
【正文语种】:


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Product Code:SAE ARP1231
Title:Gland Design, Elastomeric O-Ring Seals, General Considerations
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:This document establishes general gland design criteria for static and dynamic O-ring seal applications used in fluid systems and at fluid pressures common to the aerospace industry. Detailed discussion of design criteria and tables of recommended gland dimensions are contained in the documents listed in Table 1. S.I. unit conversions for U.S. customary units have been provided for reference purposes.
基本信息
标准名称:连铸钢板坯低倍组织缺陷评级图
英文名称:Standard diagrams for macrostructure and defect in continuous casting slab
中标分类: 冶金 >> 金属理化性能试验方法 >> 金相检验方法
ICS分类: 冶金 >> 金属材料试验
替代情况:YB 4003-91
发布部门:中华人民共和国治金工业部
发布日期:1997-08-04
实施日期:1997-12-01
首发日期:1900-01-01
作废日期:1900-01-01
提出单位:全国钢标准化技术委员会
归口单位:全国钢标准化技术委员会
起草单位:武汉钢铁(集团)公司
起草人:陈士华、柯史炫、李靖、张友登、栾燕
出版日期:1900-01-01
页数:113页
适用范围

本标准规定了连铸钢板坯低倍组织缺陷酸蚀和硫印检验法用的试样以及缺陷的形貌特征、产生原因和评级原则。

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所属分类: 冶金 金属理化性能试验方法 金相检验方法 冶金 金属材料试验