1、Designation:D316699(Reapproved 2020)Standard Test Method forFatigue Properties of Adhesives in Shear by TensionLoading(Metal/Metal)1This standard is issued under the fixed designation D3166;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method cove
3、rs the measurement of fatiguestrength in shear by tension loading of adhesives on a standardspecimen and under specified conditions of preparation,loading,and testing.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This
4、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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This inte
5、rnational standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Com
6、mittee.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)3.Terminology3.1 DefinitionsMany terms in this test method are definedin Terminology D9
7、07.4.Significance and Use4.1 While this test method is intended for use in metal-to-metal applications it may be used for measuring the fatigueproperties of adhesives using plastic adherends,providedconsideration is given to the thickness of the plastic adherends.Doublers may be required for plastic
8、 adherends to preventbearing failure in the adherends.4.2 A variation in the thickness of the adherends caninfluence the test results.For this reason,the thickness of thesheets used to make the test specimens should be specified inthe material specification.When no thickness is specified,metal adher
9、ends 1.63 mm(0.064 in.)thick are recommended.5.Apparatus5.1 Testing Machine,capable of applying a sinusoidal cyclicaxial load.The cyclic rate and type of equipment(constant loador constant displacement)can influence test results.For thisreason,the cyclic rate and equipment should be specified in the
10、material specification.When no cyclic rate is specified 1800cycles/min is recommended.Employ suitable grips and jaws sothat the specimen can be gripped tightly and held in alignmentas the load,accurate within 62%,is applied.6.Test Specimens6.1 Use test specimens conforming to the shape and dimen-sio
11、ns shown in Fig.1,having grip ends suitable for use in theparticular testing machine.These specimens are similar to thetension lap-shear specimens described in Test Method D1002.6.2 At least 25 specimens shall be tested,representing atleast 4 different panels.6.3 Prepare,cut,finish,and condition the
12、 specimens in thesame manner as for Test Method D1002.Employ an overlap of9.5 mm(0.38 in.)for 1.63-mm(0.064-in.)aluminum alloys.Ensure that the dimensions of other materials are such thatfailures occur in the bond.(An overlap of 12.7 mm(0.50 in.)for 6.4-mm(0.25-in.)thick nonmetals should be used ifp
13、ossible.)1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved Jan.1,2020.Published January 2020.Originallyapproved in 1973.Last previous edition approved in 2012 as D31
14、66 99(2012).DOI:10.1520/D3166-99R20.2For 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,1
15、00 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 Recom
16、mendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.7.Procedure7.1 Unless otherwise specified,test the specimens in anatmosphere maintained at 50 6 4%relative humidity and 236 1.1C(73.5 6 2F).Precondition the specimens for at least16 h.7.2 Place the specimen in the jaws of the testing machineand grip tightly so that the specimen and the jaws are perfectlyaligned in such a position that an imaginary vertical line wouldpass through the center of the bonded a
