ASTM_D_3039_-_D_3039M_-_14.pdf

Designation:D3039/D3039M14Standard Test Method forTensile Properties of Polymer Matrix Composite Materials1This standard is issued under the fixed designation D3039/D3039M;the number immediately following the designation indicates theyear of original adoption or,in the case of 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method determines the in-plane tensile prop-erties of polymer matrix composite materials reinforced byhigh-modulus fibers.The composite material forms are limitedto continuous fiber or discontinuous fiber-reinforced compos-ites in which the laminate is balanced and symmetric withrespect to the test direction.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theinch-pound units are shown in brackets.The values stated ineach system are not exact equivalents;therefore,each systemmust be used independently of the other.Combining valuesfrom the two systems may result in nonconformance with thestandard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD2584 Test Method for Ignition Loss of Cured ReinforcedResinsD2734 Test Methods for Void Content of Reinforced PlasticsD3171 Test Methods for Constituent Content of CompositeMaterialsD3878 Terminology for Composite MaterialsD5229/D5229M Test Method for MoistureAbsorption Prop-erties and Equilibrium Conditioning of Polymer MatrixComposite MaterialsE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechanical TestingE83 Practice for Verification and Classification of Exten-someter SystemsE111 Test Method for Youngs Modulus,Tangent Modulus,and Chord ModulusE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or ProcessE132 Test Method for Poissons Ratio at Room TemperatureE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE251 Test Methods for Performance Characteristics of Me-tallic Bonded Resistance Strain GagesE456 Terminology Relating to Quality and StatisticsE1012 Practice for Verification of Testing Frame and Speci-men Alignment Under Tensile and Compressive AxialForce ApplicationE1237 Guide for Installing Bonded Resistance Strain Gages3.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 define 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:3.2.1 NoteIf the term represents a physical quantity,itsanalytical dimensions are stated immediately following theterm(or letter symbol)in fundamental dimension form,usingthe following ASTM standard symbology for fundamentaldimensions,shown within square brackets:M for mass,Lfor length,T for time,for thermodynamic temperature,and nd for nondimensional quantities.Use of these symbolsis restricted to analytical dimensions when used with squarebrackets,as the symbols may have other definitions when usedwithout the brackets.1This test method is under the jurisdiction of ASTM Committee D30 onComposite Materials and is the direct responsibility of Subcommittee D30.04 onLamina and Laminate Test Methods.Current edition approved May 15,2014.Published May 2014.Originallyapproved in 1971.Last previous edition approved in 2008 as D3039 08.DOI:10.1520/D3039_D3039M-14.2For referenced ASTM standards,visit the ASTM 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 nominal value,na value,existing in name only,assigned to a measurable property for the purpose of conve-nient designation.Tolerances may be applied to a nominalvalue to define an acceptable range for the property.3.2.3 transition region,na strain region of a stress-strainor strain-strain curve over which a significant change in theslope of the curve occurs within a small strain range.3.2.4 transition strain,transitionnd,nthe strain value atthe mid