ASTM C1773-17

Standard Test Method for Monotonic Axial Tensile Behavior of Continuous Fiber-Reinforced Advanced Ceramic Tubular Test Specimens at Ambient Temperature

SIGNIFICANCE AND USE
5.1 This test method provides information on the uniaxial tensile properties and tensile stress-strain response of a ceramic composite tube—tensile strength and strain, fracture strength and strain, proportional limit stress and strain, tensile elastic modulus, etc. The information may be used for material development, material comparison, quality assurance, characterization, and design data generation.  
5.2 Continuous fiber-reinforced ceramic composites (CFCCs) are composed of continuous ceramic-fiber directional (1-D, 2-D, and 3-D) reinforcements in a fine grain-sized ((1, 2).3  
5.3 CFCC components have a distinctive and synergistic combination of material properties, interface coatings, porosity control, composite architecture (1-D, 2-D, and 3-D), and geometric shape that are generally inseparable. Prediction of the mechanical performance of CFCC tubes (particularly with braid and 3-D weave architectures) cannot be made by applying measured properties from flat CFCC plates to the design of tubes. Direct uniaxial tensile strength tests of CFCC tubes are needed to provide reliable information on the mechanical behavior and strength of tube geometries.  
5.4 CFCCs generally experience “graceful” fracture from a cumulative damage process, unlike monolithic advanced ceramics which fracture catastrophically from a single dominant flaw. The tensile behavior and strength of a CFCC are dependent on its inherent resistance to fracture, the presence of flaws, and any damage accumulation processes. These factors are affected by the composite material composition and variability in material and testing—components, reinforcement architecture and volume fraction, porosity content, matrix morphology, interface morphology, methods of material fabrication, test specimen preparation and conditioning, and surface condition.  
5.5 The results of tensile tests of test specimens fabricated to standardized dimensions from a particular material or selected portions of a part, or bo...
SCOPE
1.1 This test method determines the axial tensile strength and stress-strain response of continuous fiber-reinforced advanced ceramic composite tubes at ambient temperature under monotonic loading. This test method is specific to tube geometries, because fiber architecture and specimen geometry factors are often distinctly different in composite tubes, as compared to flat plates.  
1.2 In the test method a composite tube/cylinder with a defined gage section and a known wall thickness is fitted/bonded into a loading fixture. The test specimen/fixture assembly is mounted in the testing machine and monotonically loaded in uniaxial tension at ambient temperature while recording the tensile force and the strain in the gage section. The axial tensile strength and the fracture strength are determined from the maximum applied force and the fracture force. The strains, the proportional limit stress, and the tensile modulus of elasticity are determined from the stress-strain data.  
1.3 This test method applies primarily to advanced ceramic matrix composite tubes with continuous fiber reinforcement: uni-directional (1-D, filament wound and tape lay-up), bi-directional (2-D, fabric/tape lay-up and weave), and tri-directional (3-D, braid and weave). These types of ceramic matrix composites are composed of a wide range of ceramic fibers (oxide, graphite, carbide, nitride, and other compositions) in a wide range of crystalline and amorphous ceramic matrix compositions (oxide, carbide, nitride, carbon, graphite, and other compositions).  
1.4 This test method does not directly address discontinuous fiber-reinforced, whisker-reinforced or particulate-reinforced ceramics, although the test methods detailed here may be equally applicable to these composites.  
1.5 The test method describes a range of test specimen tube geometries based on past tensile testing of ceramic composite tubes. These geometries are applicable to tubes with ou...

General Information

• Status: Historical
• Publication Date: 31-Jan-2017
• ICS: 81.060.30 - Advanced ceramics
• Technical Committee: C28 - Advanced Ceramics
• Drafting Committee: C28.07 - Ceramic Matrix Composites

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1773 − 17
Standard Test Method for
Monotonic Axial Tensile Behavior of Continuous Fiber-
Reinforced Advanced Ceramic Tubular Test Specimens at
1
Ambient Temperature
This standard is issued under the fixed designation C1773; 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 tubes. These geometries are applicable to tubes with outer
diametersof10to150mmandwallthicknessesof1to25mm,
1.1 This test method determines the axial tensile strength
where the ratio of the outer diameter-to-wall thickness (d /t)
O
and stress-strain response of continuous fiber-reinforced ad-
is typically between 5 and 30.
vanced ceramic composite tubes at ambient temperature under
monotonic loading. This test method is specific to tube 1.5.1 This test method is specific to ambient temperature
geometries, because fiber architecture and specimen geometry
testing. Elevated temperature testing requires high temperature
factors are often distinctly different in composite tubes, as
furnaces and heating devices with temperature control and
compared to flat plates.
measurement systems and temperature-capable grips and load-
ing fixtures, which are not addressed in this test method.
1.2 In the test method a composite tube/cylinder with a
defined gage section and a known wall thickness is fitted/
1.6 The test method addresses test equipment, gripping
bondedintoaloadingfixture.Thetestspecimen/fixtureassem-
methods, testing modes, allowable bending stresses,
bly is mounted in the testing machine and monotonically
interferences, tubular test specimen geometries, test specimen
loadedinuniaxialtensionatambienttemperaturewhilerecord-
preparation, test procedures, data collection, calculation, re-
ingthetensileforceandthestraininthegagesection.Theaxial
porting requirements, and precision/bias in the following
tensile strength and the fracture strength are determined from
sections.
the maximum applied force and the fracture force.The strains,
Section
the proportional limit stress, and the tensile modulus of
Scope 1
elasticity are determined from the stress-strain data.
Referenced Documents 2
Terminology 3
1.3 This test method applies primarily to advanced ceramic
Summary of Test Method 4
matrix composite tubes with continuous fiber reinforcement:
Significance and Use 5
Interferences 6
uni-directional (1-D, filament wound and tape lay-up), bi-
Apparatus 7
directional (2-D, fabric/tape lay-up and weave), and tri-
Hazards 8
directional (3-D, braid and weave). These types of ceramic
Test Specimens 9
matrix composites are composed of a wide range of ceramic Test Procedure 10
Calculation of Results 11
fibers (oxide, graphite, carbide, nitride, and other composi-
Report 12
tions) in a wide range of crystalline and amorphous ceramic
Precision and Bias 13
Keywords 14
matrix compositions (oxide, carbide, nitride, carbon, graphite,
Annexes
and other compositions).
Interferences Annex A1
Test Specimen Geometry Annex A2
1.4 Thistestmethoddoesnotdirectlyaddressdiscontinuous
Grip Fixtures and Load Train Couplers Annex A3
fiber-reinforced, whisker-reinforced or particulate-reinforced
Allowable Bending and Load Train Alignment Annex A4
ceramics, although the test methods detailed here may be
Test Modes and Rates Annex A5
equally applicable to these composites.
1.7 Units—The values stated in SI units are to be regarded
1.5 The test method describes a range of test specimen tube
as standard.
geometries based on past tensile testing of ceramic composite
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
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 responsibility of the user of this standard to establish appro-
Ceramic Matrix Composites.
priate safety and health practices and determine the applica-
Current edition approved Feb. 1, 2017. Published February 2017. Originally
bility of regulatory limitations prior to use. Specific precau-
approved in 2013. Last previous edition approved in 2013 as C1773–13. DOI:
10.1520/C1773-17. tionary statements are given in Section 8.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1773 − 17
2. Referenced Documents whilethesecondarycomponent/s(reinforcingcomponent)may
2 be ceramic, glass-ceramic, glass, metal, or organic in nature.
2.1 ASTM Standards:
These components are combined on a macroscale to form a
C1145Terminology of Advanced Ceram
...

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: C1773 − 13 C1773 − 17
Standard Test Method for
Monotonic Axial Tensile Behavior of Continuous Fiber-
Reinforced Advanced Ceramic Tubular Test Specimens at
1
Ambient Temperature
This standard is issued under the fixed designation C1773; 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 determines the axial tensile strength and stress-strain response of continuous fiber-reinforced advanced
ceramic composite tubes at ambient temperature under monotonic loading. This test method is specific to tube geometries, because
fiber architecture and specimen geometry factors are often distinctly different in composite tubes, as compared to flat plates.
1.2 In the test method a composite tube/cylinder with a defined gage section and a known wall thickness is fitted/bonded into
a loading fixture. The test specimen/fixture assembly is mounted in the testing machine and monotonically loaded in uniaxial
tension at ambient temperature while recording the tensile force and the strain in the gage section. The axial tensile strength and
the fracture strength are determined from the maximum applied force and the fracture force. The strains, the proportional limit
stress, and the tensile modulus of elasticity are determined from the stress-strain data.
1.3 This test method applies primarily to advanced ceramic matrix composite tubes with continuous fiber reinforcement:
uni-directional (1-D, filament wound and tape lay-up), bi-directional (2-D, fabric/tape lay-up and weave), and tri-directional (3-D,
braid and weave). These types of ceramic matrix composites are composed of a wide range of ceramic fibers (oxide, graphite,
carbide, nitride, and other compositions) in a wide range of crystalline and amorphous ceramic matrix compositions (oxide,
carbide, nitride, carbon, graphite, and other compositions).
1.4 This test method does not directly address discontinuous fiber-reinforced, whisker-reinforced or particulate-reinforced
ceramics, although the test methods detailed here may be equally applicable to these composites.
1.5 The test method describes a range of test specimen tube geometries based on past tensile testing of ceramic composite tubes.
These geometries are applicable to tubes with outer diameters of 10 to 150 mm and wall thicknesses of 1 to 25 mm, where the
ratio of the outer diameter-to-wall thickness (d /t) is typically between 5 and 30.
O
1.5.1 This test method is specific to ambient temperature testing. Elevated temperature testing requires high temperature
furnaces and heating devices with temperature control and measurement systems and temperature-capable grips and loading
fixtures, which are not addressed in this test standard.method.
1.6 The test method addresses test equipment, gripping methods, testing modes, allowable bending stresses, interferences,
tubular test specimen geometries, test specimen preparation, test procedures, data collection, calculation, reporting requirements,
and precision/bias in the following sections.
Section
Scope 1
Referenced Documents 2
Terminology 3
Summary of Test Method 4
Significance and Use 5
Interferences 6
Apparatus 7
Hazards 8
Test Specimens 9
Test Procedure 10
Calculation of Results 11
Report 12
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 Feb. 15, 2013Feb. 1, 2017. Published April 2013February 2017. Originally approved in 2013. Last previous edition approved in 2013 as
C1773 – 13. DOI: 10.1520/C1773-13.10.1520/C1773-17.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1773 − 17
Precision and Bias 13
Keywords 14
Annexes
Interferences Annex A1
Test Specimen Geometry Annex A2
Grip Fixtures and Load Train Couplers Annex A3
Allowable Bending and Load Train Alignment Annex A4
Test Modes and Rates Annex A5
1.7 Units—The values stated in SI units are to be regarded as standard.
1.8 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 determ
...