ASTM C1425-19
(Test Method)Standard Test Method for Interlaminar Shear Strength of 1D and 2D Continuous Fiber-Reinforced Advanced Ceramics at Elevated Temperatures
Standard Test Method for Interlaminar Shear Strength of 1D and 2D Continuous Fiber-Reinforced Advanced Ceramics at Elevated Temperatures
SIGNIFICANCE AND USE
5.1 Continuous fiber-reinforced ceramic composites are candidate materials for structural applications requiring high degrees of wear, erosion, corrosion resistance, and damage tolerance at high temperatures.
5.2 The 1D and 2D CFCCs are highly anisotropic and their transthickness tensile and interlaminar shear strength are lower than their in-plane tensile and in-plane shear strength, respectively.
5.3 Shear tests provide information on the strength and deformation of materials under shear stresses.
5.4 This test method may be used for material development, material comparison, quality assurance, characterization, and design data generation.
5.5 For quality control purposes, results derived from standardized shear test specimens may be considered indicative of the response of the material from which they were taken for given primary processing conditions and post-processing heat treatments.
SCOPE
1.1 This test method addresses the uniaxial compression of a double-notched test specimen to determine interlaminar shear strength of continuous fiber-reinforced ceramic composites (CFCCs) at elevated temperatures. Failure of the test specimen occurs by interlaminar shear between two centrally located notches machined halfway through the thickness of the test specimen and spaced a fixed distance apart on opposing faces (see Fig. 1). Test specimen preparation methods and requirements, testing modes (force or displacement control), testing rates (force rate or displacement rate), data collection, and reporting procedures are addressed.
FIG. 1 Schematic of Uniaxial Compression of Double-Notched Test Specimen for the Determination of Interlaminar Shear Strength of CFCCs
1.2 This test method is used for testing advanced ceramic or glass matrix composites with continuous fiber reinforcement having a laminated structure such as in unidirectional (1D) or bidirectional (2D) fiber architecture (lay-ups of unidirectional plies or stacked fabric). This test method does not address composites with nonlaminated structures, such as (3D) fiber architecture or discontinuous fiber-reinforced, whisker-reinforced, or particulate-reinforced ceramics.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are noted in 8.1 and 8.2.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1425 − 19
Standard Test Method for
Interlaminar Shear Strength of 1D and 2D Continuous Fiber-
1
Reinforced Advanced Ceramics at Elevated Temperatures
This standard is issued under the fixed designation C1425; 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* 2. Referenced Documents
2
1.1 This test method addresses the uniaxial compression of 2.1 ASTM Standards:
adouble-notchedtestspecimentodetermineinterlaminarshear C1145 Terminology of Advanced Ceramics
strength of continuous fiber-reinforced ceramic composites C1292 Test Method for Shear Strength of Continuous Fiber-
(CFCCs) at elevated temperatures. Failure of the test specimen Reinforced Advanced Ceramics at Ambient Temperatures
occurs by interlaminar shear between two centrally located D695 Test Method for Compressive Properties of Rigid
notches machined halfway through the thickness of the test Plastics
specimen and spaced a fixed distance apart on opposing faces D3846 Test Method for In-Plane Shear Strength of Rein-
(see Fig. 1). Test specimen preparation methods and forced Plastics
requirements, testing modes (force or displacement control), D3878 Terminology for Composite Materials
testing rates (force rate or displacement rate), data collection, D6856/D6856M Guide for Testing Fabric-Reinforced “Tex-
and reporting procedures are addressed. tile” Composite Materials
E4 Practices for Force Verification of Testing Machines
1.2 This test method is used for testing advanced ceramic or
E6 Terminology Relating to Methods of Mechanical Testing
glass matrix composites with continuous fiber reinforcement
E122 Practice for Calculating Sample Size to Estimate,With
having a laminated structure such as in unidirectional (1D) or
Specified Precision, the Average for a Characteristic of a
bidirectional (2D) fiber architecture (lay-ups of unidirectional
Lot or Process
plies or stacked fabric). This test method does not address
E220 Test Method for Calibration of Thermocouples By
composites with nonlaminated structures, such as (3D) fiber
Comparison Techniques
architecture or discontinuous fiber-reinforced, whisker-
E230/E230M Specification for Temperature-Electromotive
reinforced, or particulate-reinforced ceramics.
Force (emf) Tables for Standardized Thermocouples
1.3 Values expressed in this test method are in accordance
E337 Test Method for Measuring Humidity with a Psy-
with the International System of Units (SI) and IEEE/ASTM
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
SI 10.
peratures)
1.4 This standard does not purport to address all of the IEEE/ASTM SI 10 American National Standard for Metric
safety concerns, if any, associated with its use. It is the
Practice
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
3.1 Definitions—The definitions of terms relating to shear
mine the applicability of regulatory limitations prior to use.
strength testing appearing in Terminology E6 apply to the
Specific precautionary statements are noted in 8.1 and 8.2.
terms used in this test method.The definitions of terms relating
1.5 This international standard was developed in accor-
to advanced ceramics appearing in Terminology C1145 apply
dance with internationally recognized principles on standard-
to the terms used in this test method. The definitions of terms
ization established in the Decision on Principles for the
relating to fiber-reinforced composites appearing in Terminol-
Development of International Standards, Guides and Recom-
ogy D3878 apply to the terms used in this test method.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 shear failure force [F], n—maximumforcerequiredto
fracture a shear-loaded test specimen. C1292
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 Feb. 1, 2019. Published February 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2013 as C1425 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1425-19. the ASTM websit
...
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: C1425 − 13 C1425 − 19
Standard Test Method for
Interlaminar Shear Strength of 1–D1D and 2–D2D
Continuous Fiber-Reinforced Advanced Ceramics at
1
Elevated Temperatures
This standard is issued under the fixed designation C1425; 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 addresses the uniaxial compression of a double-notched test specimen to determine interlaminar shear
strength of continuous fiber-reinforced ceramic composites (CFCCs) at elevated temperatures. Failure of the test specimen occurs
by interlaminar shear between two centrally located notches machined halfway through the thickness of the test specimen and
spaced a fixed distance apart on opposing faces (see Fig. 1). Test specimen preparation methods and requirements, testing modes
(force or displacement control), testing rates (force rate or displacement rate), data collection, and reporting procedures are
addressed.
1.2 This test method is used for testing advanced ceramic or glass matrix composites with continuous fiber reinforcement having
a laminated structure such as in unidirectional (1-D)(1D) or bidirectional (2-D)(2D) fiber architecture (lay-ups of unidirectional
plies or stacked fabric). This test method does not address composites with nonlaminated structures, such as (3-D)(3D) fiber
architecture or discontinuous fiber-reinforced, whisker-reinforced, or particulate-reinforced ceramics.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are noted in 8.1 and 8.2.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C1145 Terminology of Advanced Ceramics
C1292 Test Method for Shear Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperatures
D695 Test Method for Compressive Properties of Rigid Plastics
D3846 Test Method for In-Plane Shear Strength of Reinforced Plastics
D3878 Terminology for Composite Materials
D6856/D6856M Guide for Testing Fabric-Reinforced “Textile” Composite Materials
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230E230/E230M Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
E337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)
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, 2019. Published April 2013February 2019. Originally approved in 1999. Last previous edition approved in 20112013 as
C1425 – 11.C1425 – 13. DOI: 10.1520/C1425-13.10.1520/C1425-19.
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1425 − 19
FIG. 1 Schematic of Uniaxial Compression of Double-Notched Test Specimen for the Determination of Interlaminar Shear Strength of
CFCCs
IEEE/ASTM SI 10 American National Standard
...
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