1、Designation:D7565/D7565M10Standard Test Method forDetermining Tensile Properties of Fiber Reinforced PolymerMatrix Composites Used for Strengthening of CivilStructures1This standard is issued under the fixed designation D7565/D7565M;the number immediately following the designation indicates theyear
2、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.1.Scope1.1 This test method describes the requirements for samplepreparati
3、on,tensile testing,and results calculation of flat fiberreinforced polymer(FRP)composite materials used for thestrengthening of structures made of materials such as metals,timber,masonry,and reinforced concrete.The method may beused to determine the tensile properties of wet lay-up andpre-impregnate
4、d FRP composites fabricated on site or manu-factured in a factory setting.The FRP composite may be ofeither unidirectional(0-degrees)or cross-ply(0/90 type)rein-forcement.For cross-ply laminates,the construction may beachieved using multiple-layers of unidirectional fibers at either0 or 90 degrees,o
5、r one or more layers of stitched or woven0/90 fabrics.The composite material forms are limited tocontinuous fiber or discontinuous fiber-reinforced compositesin which the laminate is balanced and symmetric with respectto the test direction.The method only covers the determinationof the tensile prope
6、rties of the FRP composite material.Othercomponents used to attach the FRP material to the substrate,such as the primer,putty,and adhesive in externally bondedstrengthening systems,are excluded from the sample prepara-tion and testing detailed in this document.This test methodrefers to Test Method D
7、3039/D3039M for conduct of the tests.1.2 The values stated in either SI units or inch-pound unitsare to be regarded as standard.Within the text,the inch-poundunits are shown in brackets.The values stated in each systemare not exact equivalents;therefore,each system must be usedindependently of the o
8、ther.Combining values from the twosystems may result in nonconformance with the standard.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 a
9、nd determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD3878 Terminology for Composite MaterialsD5229/D5229M Test Metho
10、d for MoistureAbsorption Prop-erties and Equilibrium Conditioning of Polymer MatrixComposite MaterialsD5687/D5687M Guide for Preparation of Flat CompositePanels with Processing Guidelines for Specimen Prepara-tionE6 Terminology Relating to Methods of Mechanical TestingE122 Practice for Calculating S
11、ample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or ProcessE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE456 Terminology Relating to Quality and Statistics3.Terminology3.1 DefinitionsTerminology D3878 defines terms relatingto high-mo
12、dulus fibers and their composites.TerminologyD883 defines terms relating to plastics.Terminology E6 definesterms relating to mechanical testing.Terminology E456 andE177 define terms relating to statistics.In the event of aconflict between terms,Terminology D3878 shall have prece-dence over the other
13、 standards.3.2 Definitions of Terms Specific to This Standard:3.2.1 screed,vto move a flat rule along the top of asaturated laminate to level the top of the laminate andsimultaneously remove excess resin.3.2.2 shop-manufactured FRP composite,nan FRP com-posite material manufactured under controlled
14、conditions usingan automated process in a factory,typically with tight control1This test method is under the jurisdiction of ASTM Committee D30 onComposite Materials and is the direct responsibility of Subcommittee D30.10 onComposites for Civil Structures.Current edition approved April 1,2010.Publis
15、hed May 2010.Originallyapproved in 2009.Last previous edition approved in 2009 as D7565/D7565M 09.DOI:10.1520/D7565_D7565M-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refe
16、r 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 over the volume fractions and alignment of fibers,matrix,andvoids in the material as well as the cross-sectional geometry.For strengthening applications,shop-manufactured FRP com-posites are typically bonded to the substrate subsequent to thefabrication of the composite reinforcement.3.2.3 wet lay-up FRP composite,nan FRP compos