1、Designation:D5766/D5766M11(Reapproved 2018)Standard Test Method forOpen-Hole Tensile Strength of Polymer Matrix CompositeLaminates1This standard is issued under the fixed designation D5766/D5766M;the number immediately following the designation indicates theyear of original adoption or,in the case o
2、f revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method determines the open-hole tensilestrength of multidirectional polymer matrix composi
3、te lami-nates reinforced by high-modulus fibers.The composite mate-rial forms are limited to continuous-fiber or discontinuous-fiber(tape or fabric,or both)reinforced composites in which thelaminate is balanced and symmetric with respect to the testdirection.The range of acceptable test laminates an
4、d thick-nesses are described in 8.2.1.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems
5、may result in non-conformancewith the standard.1.2.1 Within the text the inch-pound units are shown inbrackets.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,
6、health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Inter
7、national Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to Plasti
8、csD2584 Test Method for Ignition Loss of Cured ReinforcedResinsD2734 Test Methods for Void Content of Reinforced PlasticsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD3171 Test Methods for Constituent Content of CompositeMaterialsD3878 Terminology for Composi
9、te MaterialsD5229/D5229M Test Method for MoistureAbsorption Prop-erties and Equilibrium Conditioning of Polymer MatrixComposite MaterialsE6 Terminology Relating to Methods of Mechanical TestingE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE456 Terminology Relating to Quali
10、ty and StatisticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE1309 GuideforIdentificationofFiber-ReinforcedPolymer-Matrix Composite Materials in Databases(With-drawn 2015)3E1434 Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite
11、 Materials in Databases(Withdrawn2015)33.Terminology3.1 DefinitionsTerminology D3878 defines terms relatingto high-modulus fibers and their composites.TerminologyD883 defines terms relating to plastics.Terminology E6 definesterms relating to mechanical testing.Terminology E456 andPractice E177 defin
12、e terms relating to statistics.In the event ofa conflict between terms,Terminology D3878 shall haveprecedence over the other standards.3.2 Definitions of Terms Specific to This Standard:NOTE1If the term represents a physical quantity,its analyticaldimensions are stated immediately following the term
13、(or letter symbol)infundamental dimension form,using the following ASTM standard sym-bology for fundamental dimensions,shown within square brackets:Mfor mass,L for length,T for time,for thermodynamic temperature,1This test method is under the jurisdiction of ASTM Committee D30 onComposite Materials
14、and is the direct responsibility of Subcommittee D30.05 onStructural Test Methods.Current edition approved June 1,2018.Published July 2018.Originally approvedin 1995.Last previous edition approved in 2011 as D5766/D5766M 11.DOI:10.1520/D5766_D5766M-11R18.2For referenced ASTM standards,visit the ASTM
15、 website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM Internationa
16、l,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 and nd for non-dimensional quantities.Use of these symbols is restrictedto analytical dimensions when u
