ASTM_D_5083_-_17.pdf

Designation:D508317Standard Test Method forTensile Properties of Reinforced Thermosetting PlasticsUsing Straight-Sided Specimens1This standard is issued under the fixed designation D5083;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers the determination of the tensileproperties of thermosetting reinforced plastics using test speci-mens of uniform nominal width when tested under definedconditions of pretreatment,temperature,humidity,and testing-machine speed.NOTE1Experience with this test method to date has been limited toglass-reinforced thermosets.Applicability to other materials remains to bedetermined.1.2 This test method is used for testing materials of anythickness up to 14 mm(0.55 in.).NOTE2This test method is not intended to cover precise physicalprocedures.It is recognized that the constant-rate-of-crosshead-movementtype of test leaves much to be desired from a theoretical standpoint,thatwide differences may exist between rate-of-crosshead movement and rateof strain between gauge marks on the specimen,and that the testing speedsspecified disguise important effects characteristic of materials in theplastic state.Further,it is realized that variations in the thicknesses of testspecimens that are permitted by these procedures,produce variations inthe surface-volume ratios of such specimens,and that these variations mayinfluence the test results.Hence,where directly comparable results aredesired,all samples should be of equal thickness.Special additional testsshould be used where more precise physical data are needed.NOTE3Use of this test method for testing materials of thicknessesgreater than 14 mm(0.55 in.)is not recommended.Reducing the thicknessby machining may be acceptable for materials of uniform reinforcementamount and direction,but is generally not recommended.1.3 Test data obtained by this test method is relevant andappropriate for use in engineering design.1.4 The values stated in SI units are to be regarded asstandard.The inch-pound units given in parentheses are forinformation only.1.5 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.NOTE4This standard and ISO 527-4 address the same subject matter,but differ in technical content.(a)This test method does not include testing of the Type I dogboneshaped specimen described in ISO 527-4.Testing of this type of specimen,primarily used for reinforced and un-reinforced thermoplastic materials,isdescribed in Test Method D638.(b)The thickness of test specimens in this test method includes the 2mm to 10 mm thickness range of ISO 527-4,but expands the allowabletest thickness to 14 mm.(c)ISO 527-4 allows for the use of holes in the tabs of the test specimenwhile this standard does not.(d)The definitions for tensile strength and modulus differ betweenthese two standards.NOTE5For tensile properties of resin-matrix composites reinforcedwith oriented continuous or discontinuous high modulus 20-GPa(3.0 106-psi)fibers,tests shall be made in accordance with Test MethodD3039/D3039M or ISO 527 Part 5.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD883 Terminology Relating to PlasticsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD4000 Classification System for Specifying Plastic Materi-alsD5947 Test Methods for Physical Dimensions of SolidPlastics SpecimensE4 Practices for Force Verification of Testing MachinesE83 Practice for Verification and Classification of Exten-someter SystemsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ISO Standard:3ISO 527 PlasticsDetermination of Tensile PropertiesPart 1:General PrinciplesISO 527 Part4PlasticsDeterminationofTensilePropertiesTest Conditions for Isotropic and Orthotropic1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.Current edition approved March 15,2017.Published March 2017.Originallyapproved in 1990.Last previous edition approved in 2010 as D5083 101.DOI:10.1520/D5083-17.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*A Su