1、Designation:D586801(Reapproved 2014)Standard Test Method forLap Shear Adhesion for Fiber Reinforced Plastic(FRP)Bonding1This standard is issued under the fixed designation D5868;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the yea
2、r 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.Scope1.1 This test method describes a lap shear test for use inmeasuring the bonding characteristics of adhesives for joiningfi
3、ber reinforced plastics to themselves and to metals.Themethod is applicable to random and fiber oriented FRP.1.2 This test method is intended to complement Test MethodD1002 and extend the application to single-lap shear adhesivejoints of fiber-reinforced plastic(FRP)adherends.This testmethod is usef
4、ul for generating comparative apparent shearstrength data for joints made from a number of FRP materials,providing a means by which FRP surface treatments may becompared.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversion
5、s to SI units that are provided for information onlyand are not considered standard.1.4 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 de
6、termine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D907 Terminology of AdhesivesD1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading(Metal-to-Metal)D2093 Practice for Preparati
7、on of Surfaces of Plastics Priorto Adhesive BondingD3163 Test Method for Determining Strength of AdhesivelyBonded Rigid Plastic Lap-Shear Joints in Shear by Ten-sion LoadingD4896 Guide for Use of Adhesive-Bonded Single Lap-JointSpecimen Test ResultsD5573 Practice for Classifying Failure Modes in Fib
8、er-Reinforced-Plastic(FRP)JointsE4 Practices for Force Verification of Testing Machines2.2 SAE Standard:SAE J1525 Lap Shear Test for Automotive-Type Adhesivesfor Fiber Reinforced Plastic(FRP)Bonding33.Terminology3.1 Adhesive terminology for this test method is covered inTerminology D907.4.Summary of
9、 Test Method4.1 This test method describes a procedure for the testing oflap shear bond strengths,using composite materials not rec-ommended in Test Method D3163 such as FRP.5.Significance and Use5.1 Due to the increased use of adhesively-bonded FRP as aresult of the inherent advantages afforded by
10、bonded ratherthan mechanically-fastened joints(particularly the alleviationof stress risers and stress cracking),there is a need for tests bywhich joints of various FRP substrates and adhesives may becompared.This test method is intended to meet such a need.5.2 Additional information on significance
11、 and use may befound in Guide D4896.6.Interference6.1 Apparent shear strength may be affected by substrateproperties,such as moisture absorption and strength.7.Apparatus7.1 Testing Machine,conforming to the requirements andhaving the capabilities of the machine in Practices E4 withself-aligning grip
12、s capable of securely grasping the specimenthroughout the test without allowing the specimen to slip.1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.40 on Adhesives forPlastics.Current edition approved March 1,2014.Pu
13、blished March 2014.Originallyapproved in 1995.Last previous edition approved in 2008 as D5868 01(2008).DOI:10.1520/D5868-01R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,ref
14、er to the standards Document Summary page onthe ASTM website.3Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 8.Procedure8.
15、1 Test Substrate:8.1.1 SubstratesFiberreinforcedplastic(FRP)asspecified,with metal composition(heat treat,temper,andcondition)and roughness as specified when bonding FRP tometal.8.1.2 DimensionsCut fiber-reinforced plastic parts intoflat coupons 1 by 4 in.(25.4 by 100 mm)at a nominal thicknessof 0.1
16、 in.(2.5 mm).In the case of FRP-to-metal bonding,usemetal with a nominal thickness of 0.06 in.(1.5 mm).It isrecommended that a diamond tip water-cooled saw blade beused,or a cutting method capable of producing sharp cut edges.8.2 Surface Preparations:8.2.1 Prepare the surface of the FRP in accordance withPractice D2093,or as recommended by the adhesive manufac-turer.Surface roughening,solvent cleaning,and surface prim-ers are acceptable,provided they do not reduce the FRP bulkproperties.Use surf