ASTM C1468-2013 Standard Test Method for Transthickness Tensile Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperature《室温下连续纤维增强高级陶瓷转换厚度抗拉强度的标准试验方法》.pdf
《ASTM C1468-2013 Standard Test Method for Transthickness Tensile Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperature《室温下连续纤维增强高级陶瓷转换厚度抗拉强度的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM C1468-2013 Standard Test Method for Transthickness Tensile Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperature《室温下连续纤维增强高级陶瓷转换厚度抗拉强度的标准试验方法》.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C1468 06C1468 13Standard Test Method forTransthickness Tensile Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperature1This standard is issued under the fixed designation C1468; the number immediately following the designation indicates the year oforiginal adopt
2、ion 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. Scope Scope*1.1 This test method covers the determination of transthickness tensil
3、e strength SUT! under monotonic uniaxial forcing ofcontinuous fiber-reinforced ceramics (CFCC) at ambient temperature. This test method addresses, but is not restricted to, varioussuggested test specimen geometries, test fixtures, data collection and reporting procedure. In general, round or square
4、testspecimens are tensile tested in the direction normal to the thickness by bonding appropriate hardware to the samples andperforming the test. For a Cartesian coordinate system, the x-axis and the y-axis are in the plane of the test specimen. Thetransthickness direction is normal to the plane and
5、is labeled the z-axis for this test method. For CFCCs, the plane of the testspecimen normally contains the larger of the three dimensions and is parallel to the fiber layers for uni-directional, bi-directional,and woven composites. Note that transthickness tensile strength as used in this test metho
6、d refers to the tensile strength obtainedunder monotonic uniaxial forcing where monotonic refers to a continuous nonstop test rate with no reversals from test initiationto final fracture.1.2 This test method is intended primarily for use with all advanced ceramic matrix composites with continuous fi
7、berreinforcement: unidirectional (1-D), bidirectional (2-D), woven, and tridirectional (3-D). In addition, this test method also may beused with glass (amorphous) matrix composites with 1-D, 2-D, and 3-D continuous fiber reinforcement. This test method does notaddress directly discontinuous fiber-re
8、inforced, whisker-reinforced or particulate-reinforced ceramics, although the test methodsdetailed here may be equally applicable to these composites. It should be noted that 3-D architectures with a high volume fractionof fibers in the “z” direction may be difficult to test successfully.1.3 Values
9、are in accordance with the International System of Units (SI) and IEEE/ASTM SI 10.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and d
10、etermine the applicability of regulatorylimitations prior to use. Additional recommendations are provided in 6.7 and Section 7.2. Referenced Documents2.1 ASTM Standards:2C1145 Terminology of Advanced CeramicsC1239 Practice for Reporting Uniaxial Strength Data and Estimating Weibull Distribution Para
11、meters for Advanced CeramicsC1275 Test Method for Monotonic Tensile Behavior of Continuous Fiber-Reinforced Advanced Ceramics with SolidRectangular Cross-Section Test Specimens at Ambient TemperatureC1468 Test Method for Transthickness Tensile Strength of Continuous Fiber-Reinforced Advanced Ceramic
12、s at AmbientTemperatureD3878 Terminology for Composite MaterialsE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechanical TestingE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE337 Test Method for Measuring Humidity with a Psyc
13、hrometer (the Measurement of Wet- and Dry-Bulb Temperatures)E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method1 This test method is under the jurisdiction of ASTM Committee C28 on Advanced Ceramics and is the direct responsibility of Subcommittee C28.07
14、 on Ceramic MatrixComposites.Current edition approved Jan. 1, 2006Feb. 15, 2013. Published January 2006April 2013. Originally approved in 2000. Last previous edition approved in 20002006 asC1468 00.C1468 06. DOI: 10.1520/C1468-06.10.1520/C1468-13.2 For referencedASTM standards, visit theASTM website
15、, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication o
16、f what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considere
17、d the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1IEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The
18、 Modern Metric System.E1012 Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial ForceApplication3. Terminology3.1 Definitions:3.1.1 The definitions of terms relating to tensile testing appearing in Terminology E6 apply to the terms used in this test
19、method.The definitions of terms relating to advanced ceramics appearing inTerminology C1145 apply to the terms used in this test method.The definitions of terms relating to fiber-reinforced composites appearing in Terminology D3878 apply to the terms used in thistest method. Pertinent definitions as
20、 listed in Practice E1012, Terminology C1145, Terminology D3878, and Terminology E6 areshown in the following with the appropriate source given in brackets. Terms used in conjunction with this test method are definedas follows:3.1.2 advanced ceramic, na highly-engineered, high-performance predominat
21、ely nonmetallic, inorganic, ceramic materialhaving specific functional attributes. C11453.1.3 bending strain, nthe difference between the strain at the surface and the axial strain. E10123.1.4 breaking force, nthe force at which fracture occurs, Pmax, is the breaking force in units of N. E63.1.5 cer
22、amic matrix composite (CMC), na material consisting of two or more materials (insoluble in one another), in whichthe major, continuous component (matrix component) is a ceramic, while the secondary component(s) (reinforcing component)may be ceramic, glass-ceramic, glass, metal or organic in nature.
23、These components are combined on a macroscale to form a usefulengineering material possessing certain properties or behavior not possessed by the individual constituents. C11453.1.6 continuous fiber-reinforced ceramic matrix composite (CFCC), na ceramic matrix composite in which the reinforcingphase
24、s consists of continuous filaments, fibers, yarn, or knitted or woven fabrics. C11453.1.7 gage length, nthe original length LGL of that portion of the test specimen over which strain or change of length isdetermined. E63.1.8 modulus of elasticity, nthe ratio of stress to corresponding strain below t
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