IEC 60708-1-1981 聚烯烃绝缘和隔潮层聚烯烃护套低频电缆第1部分:一般设计细则和要求
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【英文标准名称】:Low-frequencycableswithpolyolefininsulationandmoisturebarrierpolyolefinsheath.Part1:Generaldesigndetailsandrequirements
【原文标准名称】:聚烯烃绝缘和隔潮层聚烯烃护套低频电缆第1部分:一般设计细则和要求
【标准号】:IEC60708-1-1981
【标准状态】:作废
【国别】:国际
【发布日期】:1981
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆护套;绝缘;总论;电气工程;低频电缆;绝缘电缆;聚烯烃;低频
【英文主题词】:generalsection;lowfrequencies;insulatedcables;electricalengineering;cablesheaths;low-frequencycables;polyolefins;insulations
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:23P;A4
【正文语种】:英语
基本信息
标准名称: | 裸眼井单井测井数据处理流程 |
英文名称: | The processing procedure of single well logging data in open hole |
中标分类: |
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ICS分类: |
采矿和矿产品 >>
采矿和挖掘
|
替代情况: | SY/T 5360-1995 |
发布部门: | 国家发展和改革委员会 |
发布日期: | 2004-07-03 |
实施日期: | 2004-11-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
主管部门: | 国家发展和改革委员会 |
提出单位: | 石油测井专业标准化委员会 |
归口单位: | 石油测井专业标准化委员会 |
起草单位: | 中国石化集团胜利石油管理局测井公司 |
起草人: | 黄质昌、冷洪涛、程传之 |
出版社: | 石油工业出版社 |
出版日期: | 2004-09-25 |
页数: | 15页 |
批文号: | 14030-2004 |
书号: | 155021.5801 |
适用范围
本标准规定了单井测井资料数字处理的基本方法。本标准适用于单井测井资料的数字处理。
前言
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目录
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引用标准
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所属分类: 采矿和矿产品 采矿和挖掘
【英文标准名称】:StandardTestMethodforUltimateStrengthofAdvancedCeramicswithDiametrallyCompressedC-RingSpecimensatAmbientTemperature
【原文标准名称】:环境温度下径向压缩C环样品的高级陶瓷的极限强度的标准试验方法
【标准号】:ASTMC1323-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:C28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:advancedceramic;C-ringspecimen;uniaxialstrength;Advancedceramics;C-ringspecimens;Monotoniccompressivestrength;Strength--ceramicmaterials/applications;Ultimatestrength
【摘要】:Thistestmethodmaybeusedformaterialdevelopment,materialcomparison,qualityassurance,andcharacterization.Extremecareshouldbeexercisedwhengeneratingdesigndata.ForaC-ringunderdiametralcompression,themaximumtensilestressoccursattheoutersurface.Hence,theC-ringspecimenloadedincompressionwillpredominatelyevaluatethestrengthdistributionandflawpopulation(s)ontheexternalsurfaceofatubularcomponent.Accordingly,theconditionoftheinnersurfacemaybeoflesserconsequenceinspecimenpreparationandtesting.Note18212;AC-ringintensionoranO-ringincompressionmaybeusedtoevaluatetheinternalsurface.Theflexurestressiscomputedbasedonsimplecurved-beamtheory(1,2,3,4,5).Itisassumedthatthematerialisisotropicandhomogeneous,themoduliofelasticityareidenticalincompressionortension,andthematerialislinearlyelastic.Thesehomogeneityandisotropyassumptionsprecludetheuseofthisstandardforcontinuousfiberreinforcedcomposites.Averagegrainsize(s)shouldbenogreaterthanonefiftieth(1/50)oftheC-ringthickness.Thesimplecurved-beamtheorystresssolutionisingoodagreement(typicallybetterthan1%)withatheoryofelasticitysolutionasdiscussedin(3)forthegeometrieschosenforthisstandard.Thesimplebeamtheorystressequationsarerelativelysimple.TheyarerelativelyeasytointegrateforWeibulleffectivevolumeoreffectiveareacomputationsasshowninAppendixX1.Thesimplecurvedbeamandtheoryofelasticitystresssolutionsbotharetwo-dimensionalplanestresssolutions.Theydonotaccountforstressesintheaxial(paralleltob)direction,orvariationsinthecircumferential(hoop,x03C3;x03B8;)stressesthroughthewidth(b)ofthetestpiece.Thevariationsinthecircumferentialstressesincreasewithincreasesinwidth(b)andringthickness(t).Thevariationscanbesubstantial(>10%)fortestspecimenswithlargeb.Thecircumferentialstressespeakattheouteredges.Therefore,thewidth(b)andthickness(t)ofthespecimenspermittedinthistestmethodarelimitedsothataxialstressesarenegligible(seeRef.5)andthevariationsofthecircumferentialstressesfromthenominalsimplecurvedbeamtheorystresscalculationsaretypicallylessthan4%.SeeRef.(3)and(4)formoreinformationonthevariationofthecircumferentialstressesasafunctionofringthickness(t)andringwidth(b).Thetestpieceouterrimcornersarevulnerabletoedgedamage,anotherreasontominimizethedifferencesinthecircumferentialstressesacrosstheringoutersurface.OthergeometryCx2013;ringtestspecimensmaybetested,butcomprehensivefiniteelementanalysesshallbeperformedtoobtainaccuratestressdistributions.Ifstrengthsaretobescaled(converted)tostrengthsofothersizesorgeometries,thenWeibulleffectivevolumesorareasshallbecomputedusingtheresultsofthefiniteelementanalyses.Becauseadvancedceramicsexhibitingbrittlebehaviorgenerallyfracturecatastrophicallyfromasingledominantflawforaparticulartensilestressfield,thesurfaceareaandvolumeofmaterialsubjectedtotensilestressesisasignificantfactorindeterminingtheultimatestrength.Moreover,becauseofthestatisticaldistributionoftheflawpopulation(s)inadvancedceramicsexhibitingbrittlebehavior,asufficientn..........
【中国标准分类号】:Q32
【国际标准分类号】:81_060_99
【页数】:8P.;A4
【正文语种】:英语