ASTM C1275-16
(Test Method)Standard Test Method for Monotonic Tensile Behavior of Continuous Fiber-Reinforced Advanced Ceramics with Solid Rectangular Cross-Section Test Specimens at Ambient Temperature
Standard Test Method for Monotonic Tensile Behavior of Continuous Fiber-Reinforced Advanced Ceramics with Solid Rectangular Cross-Section Test Specimens at Ambient Temperature
SIGNIFICANCE AND USE
4.1 This test method may be used for material development, material comparison, quality assurance, characterization, and design data generation.
4.2 Continuous fiber-reinforced ceramic matrix composites generally characterized by fine grain sized (
4.3 Unlike monolithic advanced ceramics which fracture catastrophically from a single dominant flaw, CFCCs generally experience “graceful” fracture from a cumulative damage process. Therefore, the volume of material subjected to a uniform tensile stress for a single uniaxially-loaded tensile test may not be as significant a factor in determining the ultimate strengths of CFCCs. However, the need to test a statistically significant number of tensile test specimens is not obviated. Therefore, because of the probabilistic nature of the strength distributions of the brittle matrices of CFCCs, a sufficient number of test specimens at each testing condition is required for statistical analysis and design. Studies to determine the exact influence of test specimen volume on strength distributions for CFCCs have not been completed. It should be noted that tensile strengths obtained using different recommended tensile specimens with different volumes of material in the gage sections may be different due to these volume differences.
4.4 Tensile tests provide information on the strength and deformation of materials under uniaxial tensile stresses. Uniform stress states are required to effectively evaluate any nonlinear stress-strain behavior which may develop as the result of cumulative damage processes (for example, matrix cracking, matrix/fiber debonding, fiber fracture, delamination, etc.) which may be influenced by testing mode, testing rate, processing or alloying effects, or environmental influences. Some of these effects may be consequences of stress corrosion or subcritical (slow) crack growth that can be minimized by testing at sufficiently rapid rates as outlined in this test method.
4.5 The results of tensile t...
SCOPE
1.1 This test method covers the determination of tensile behavior including tensile strength and stress-strain response under monotonic uniaxial loading of continuous fiber-reinforced advanced ceramics at ambient temperature. This test method addresses, but is not restricted to, various suggested test specimen geometries as listed in the appendix. In addition, test specimen fabrication methods, testing modes (force, displacement, or strain control), testing rates (force rate, stress rate, displacement rate, or strain rate), allowable bending, and data collection and reporting procedures are addressed. Note that tensile strength as used in this test method refers to the tensile strength obtained under monotonic uniaxial loading where monotonic refers to a continuous nonstop test rate with no reversals from test initiation to final fracture.
1.2 This test method applies primarily to all advanced ceramic matrix composites with continuous fiber reinforcement: uni-directional (1-D), bi-directional (2-D), and tri-directional (3-D). In addition, this test method may also be used with glass (amorphous) matrix composites with 1-D, 2-D, and 3-D continuous fiber reinforcement. This test method does not address directly discontinuous fiber-reinforced, whisker-reinforced or particulate-reinforced ceramics, although the test methods detailed here may be equally applicable to these composites.
1.3 Values expressed in this test method 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 responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7 and 8.2.5.2.
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Designation: C1275 − 16
Standard Test Method for
Monotonic Tensile Behavior of Continuous Fiber-Reinforced
Advanced Ceramics with Solid Rectangular Cross-Section
1
Test Specimens at Ambient Temperature
This standard is issued under the fixed designation C1275; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
1.1 This test method covers the determination of tensile 2.1 ASTM Standards:
behavior including tensile strength and stress-strain response C1145Terminology of Advanced Ceramics
under monotonic uniaxial loading of continuous fiber- C1239Practice for Reporting Uniaxial Strength Data and
reinforcedadvancedceramicsatambienttemperature.Thistest EstimatingWeibull Distribution Parameters forAdvanced
method addresses, but is not restricted to, various suggested Ceramics
test specimen geometries as listed in the appendix. In addition, D3039/D3039MTestMethodforTensilePropertiesofPoly-
test specimen fabrication methods, testing modes (force, mer Matrix Composite Materials
displacement, or strain control), testing rates (force rate, stress D3379TestMethodforTensileStrengthandYoung’sModu-
rate, displacement rate, or strain rate), allowable bending, and lus for High-Modulus Single-Filament Materials
data collection and reporting procedures are addressed. Note D3878Terminology for Composite Materials
that tensile strength as used in this test method refers to the E4Practices for Force Verification of Testing Machines
tensile strength obtained under monotonic uniaxial loading E6Terminology Relating to Methods of MechanicalTesting
where monotonic refers to a continuous nonstop test rate with E83Practice for Verification and Classification of Exten-
no reversals from test initiation to final fracture. someter Systems
E177Practice for Use of the Terms Precision and Bias in
1.2 This test method applies primarily to all advanced
ASTM Test Methods
ceramic matrix composites with continuous fiber reinforce-
E337Test Method for Measuring Humidity with a Psy-
ment: uni-directional (1-D), bi-directional (2-D), and tri-
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
directional (3-D). In addition, this test method may also be
peratures)
usedwithglass(amorphous)matrixcompositeswith1-D,2-D,
E691Practice for Conducting an Interlaboratory Study to
and 3-D continuous fiber reinforcement.This test method does
Determine the Precision of a Test Method
not address directly discontinuous fiber-reinforced, whisker-
E1012Practice for Verification of Testing Frame and Speci-
reinforced or particulate-reinforced ceramics, although the test
men Alignment Under Tensile and Compressive Axial
methods detailed here may be equally applicable to these
Force Application
composites.
IEEE/ASTM SI 10 American National Standard for Use of
1.3 Values expressed in this test method are in accordance
theInternationalSystemofUnits(SI):TheModernMetric
withtheInternationalSystemofUnits(SI)andIEEE/ASTMSI
System
10 .
3. Terminology
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 The definitions of terms relating to tensile testing
priate safety and health practices and determine the applica-
appearing in Terminology E6 apply to the terms used in this
bility of regulatory limitations prior to use. Specific hazard
test method. The definitions of terms relating to advanced
statements are given in Section 7 and 8.2.5.2.
ceramics appearing in Terminology C1145 apply to the terms
used in this test method. The definitions of terms relating to
1
This test method is under the jurisdiction of ASTM Committee C28 on
Advanced Ceramics and is the direct responsibility of Subcommittee C28.07 on
2
Ceramic Matrix Composites. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2016. Published January 2017. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1994. Last previous edition approved in 2015 as C1275–15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1275-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1275 − 16
fiber-reinforced composites appearing in Terminology D3878 3.1.14 Discussion— The modulus of toughness can also be
applytothetermsusedinthistestmethod.Pertinentdefinitions referred to as the
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: C1275 − 15 C1275 − 16
Standard Test Method for
Monotonic Tensile Behavior of Continuous Fiber-Reinforced
Advanced Ceramics with Solid Rectangular Cross-Section
1
Test Specimens at Ambient Temperature
This standard is issued under the fixed designation C1275; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of tensile behavior including tensile strength and stress-strain response under
monotonic uniaxial loading of continuous fiber-reinforced advanced ceramics at ambient temperature. This test method addresses,
but is not restricted to, various suggested test specimen geometries as listed in the appendix. In addition, test specimen fabrication
methods, testing modes (force, displacement, or strain control), testing rates (force rate, stress rate, displacement rate, or strain
rate), allowable bending, and data collection and reporting procedures are addressed. Note that tensile strength as used in this test
method refers to the tensile strength obtained under monotonic uniaxial loading where monotonic refers to a continuous nonstop
test rate with no reversals from test initiation to final fracture.
1.2 This test method applies primarily to all advanced ceramic matrix composites with continuous fiber reinforcement:
uni-directional (1-D), bi-directional (2-D), and tri-directional (3-D). In addition, this test method may also be used with glass
(amorphous) matrix composites with 1-D, 2-D, and 3-D continuous fiber reinforcement. This test method does not address directly
discontinuous fiber-reinforced, whisker-reinforced or particulate-reinforced ceramics, although the test methods detailed here may
be equally applicable to these composites.
1.3 Values expressed in this test method 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 responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use. Specific hazard statements are given in Section 7 and 8.2.5.2.
2. Referenced Documents
2
2.1 ASTM Standards:
C1145 Terminology of Advanced Ceramics
C1239 Practice for Reporting Uniaxial Strength Data and Estimating Weibull Distribution Parameters for Advanced Ceramics
D3039/D3039M Test Method for Tensile Properties of Polymer Matrix Composite Materials
D3379 Test Method for Tensile Strength and Young’s Modulus for High-Modulus Single-Filament Materials
D3878 Terminology for Composite Materials
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E83 Practice for Verification and Classification of Extensometer Systems
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1012 Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force
Application
1
This test method is under the jurisdiction of ASTM Committee C28 on Advanced Ceramics and is the direct responsibility of Subcommittee C28.07 on Ceramic Matrix
Composites.
Current edition approved July 1, 2015Dec. 1, 2016. Published September 2015January 2017. Originally approved in 1994. Last previous edition approved in 20102015
as C1275 – 10.C1275 – 15. DOI: 10.1520/C1275-15.10.1520/C1275-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1275 − 16
IEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The Modern Metric System
3. Terminology
3.1 Definitions:
3.1.1 The definitions of terms relating to tensile testing appearing in Terminology E6 apply
...
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