ASTM_C_1275_-_16.pdf

Designation:C127516Standard Test Method forMonotonic Tensile Behavior of Continuous Fiber-ReinforcedAdvanced Ceramics with Solid Rectangular Cross-SectionTest Specimens at Ambient Temperature1This standard is issued under the fixed designation C1275;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 tensilebehavior including tensile strength and stress-strain responseunder monotonic uniaxial loading of continuous fiber-reinforced advanced ceramics at ambient temperature.This testmethod addresses,but is not restricted to,various suggestedtest specimen geometries as listed in the appendix.In addition,test specimen fabrication methods,testing modes(force,displacement,or strain control),testing rates(force rate,stressrate,displacement rate,or strain rate),allowable bending,anddata collection and reporting procedures are addressed.Notethat tensile strength as used in this test method refers to thetensile strength obtained under monotonic uniaxial loadingwhere monotonic refers to a continuous nonstop test rate withno reversals from test initiation to final fracture.1.2 This test method applies primarily to all advancedceramic matrix composites with continuous fiber reinforce-ment:uni-directional(1-D),bi-directional(2-D),and tri-directional(3-D).In addition,this test method may also beused with glass(amorphous)matrix composites with 1-D,2-D,and 3-D continuous fiber reinforcement.This test method doesnot address directly discontinuous fiber-reinforced,whisker-reinforced or particulate-reinforced ceramics,although the testmethods detailed here may be equally applicable to thesecomposites.1.3 Values expressed in this test method are in accordancewith the International System of Units(SI)and IEEE/ASTM SI10.1.4 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 determine the applica-bility of regulatory limitations prior to use.Specific hazardstatements are given in Section 7 and 8.2.5.2.2.Referenced Documents2.1 ASTM Standards:2C1145 Terminology of Advanced CeramicsC1239 Practice for Reporting Uniaxial Strength Data andEstimating Weibull Distribution Parameters for AdvancedCeramicsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD3379 Test Method for Tensile Strength and Youngs Modu-lus for High-Modulus Single-Filament MaterialsD3878 Terminology for Composite MaterialsE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechanical TestingE83 Practice for Verification and Classification of Exten-someter SystemsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE337 Test Method for Measuring Humidity with a Psy-chrometer(the Measurement of Wet-and Dry-Bulb Tem-peratures)E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE1012 Practice for Verification of Testing Frame and Speci-men Alignment Under Tensile and Compressive AxialForce ApplicationIEEE/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 tensile testingappearing in Terminology E6 apply to the terms used in thistest method.The definitions of terms relating to advancedceramics appearing in Terminology C1145 apply to the termsused in this test method.The definitions of terms relating to1This 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 Dec.1,2016.Published January 2017.Originallyapproved in 1994.Last previous edition approved in 2015 as C1275 15.DOI:10.1520/C1275-16.2For 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 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 Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 fiber-reinforced composites appearing in Terminology D3878apply to the terms used in this test method.Pertinent definitionsas listed in Practice E1012,Terminology C1145,TerminologyD3878,and Termino