ASTM_C_1469_-_10_2015.pdf

Designation:C146910(Reapproved 2015)Standard Test Method forShear Strength of Joints of Advanced Ceramics at AmbientTemperature1This standard is issued under the fixed designation C1469;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.Scope1.1 This test method covers the determination of shearstrength of joints in advanced ceramics at ambient temperature.Test specimen geometries,test specimen fabrication methods,testing modes(that is,force or displacement control),testingrates(that is,force or displacement rate),data collection,andreporting procedures are addressed.1.2 This test method is used to measure shear strength ofceramic joints in test specimens extracted from larger joinedpieces by machining.Test specimens fabricated in this way arenot expected to warp due to the relaxation of residual stressesbut are expected to be much straighter and more uniformdimensionally than butt-jointed test specimens prepared byjoining two halves,which are not recommended.In addition,this test method is intended for joints,which have either low orintermediate strengths with respect to the substrate material tobe joined.Joints with high strengths should not be tested bythis test method because of the high probability of invalid testsresulting from fractures initiating at the reaction points ratherthan in the joint.Determination of the shear strength of jointsusing this test method is appropriate particularly for advancedceramic matrix composite materials but also may be useful formonolithic advanced ceramic materials.1.3 Values expressed in this test method are in accordancewith the International System of Units(SI)and IEEE/ASTM SI10.1.4 This test method does not purport to address the safetyproblems associated with its use.It is the responsibility of theuser of this test method to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.Specific precautionary statements arenoted in 8.1 and 8.2.2.Referenced Documents2.1 ASTM Standards:2C1145 Terminology of Advanced CeramicsC1161 Test Method for Flexural Strength of AdvancedCeramics at Ambient TemperatureC1211 Test Method for Flexural Strength of AdvancedCeramics at Elevated TemperaturesC1275 Test Method for Monotonic Tensile Behavior ofContinuous Fiber-Reinforced Advanced Ceramics withSolid Rectangular Cross-Section Test Specimens at Am-bient TemperatureC1341 Test Method for Flexural Properties of ContinuousFiber-Reinforced Advanced Ceramic CompositesD3878 Terminology for Composite MaterialsD5379/D5379M Test Method for Shear Properties of Com-posite Materials by the V-Notched Beam MethodE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechanical TestingE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or ProcessE337 Test Method for Measuring Humidity with a Psy-chrometer(the Measurement of Wet-and Dry-Bulb Tem-peratures)IEEE/ASTM SI 10 American National Standard for Use ofthe International System of Units(SI):The Modern MetricSystem3.Terminology3.1 Definitions:3.1.1 The definitions of terms relating to shear strengthtesting appearing in Terminology E6,to advanced ceramicsappearing in Terminologies C1145 and D3878 apply to theterms used in this test method.Additional terms used inconjunction with this test method are defined as follows.1This test method is under the jurisdiction of ASTM Committee C28 onAdvanced Ceramics and is the direct responsibility of Subcommittee C28.07 onCeramic Matrix Composites.Current edition approved Jan.1,2015.Published April 2015.Originallyapproved in 2000.Last previous edition approved in 2010 as C1469 10.DOI:10.1520/C1469-10R15.2For 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 3.1.2 advanced ceramic,nhighly-engineered,high-performance predominately nonmetallic,inorganic,ceramicmaterial having specific functional attributes.C11453.1.3 breaking force F,nforce at which fracture occurs.3.1.4 ceramic matrix composite,nmaterial consisting oftwo or more materials(insoluble in one another),in which themajor,continuous component(matrix component)is a ceramicwhile the secondary component(s)may be ceramic,glass-ceramic,glass,metal,or organic in nature.These componentsare combined on macroscale to form a useful engineeringmaterial possessing certain properties or behavior not pos-sessed by the individual constituents.C12753.1.5 joining,ncontrolled format