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ASTM C885-87(2020)

(Test Method)

Standard Test Method for Young’s Modulus of Refractory Shapes by Sonic Resonance

Standard Test Method for Young’s Modulus of Refractory Shapes by Sonic Resonance

SIGNIFICANCE AND USE
4.1 Young’s modulus is a fundamental mechanical property of a material.  
4.2 This test method is used to determine the dynamic modulus of elasticity of rectangular shapes. Since the test is nondestructive, specimens may be used for other tests as desired.  
4.3 This test method is useful for research and development, engineering application and design, manufacturing process control, and for developing purchasing specifications.  
4.4 The fundamental assumption inherent in this test method is that a Poisson’s ratio of 1/6 is typical for heterogeneous refractory materials. The actual Poisson's ratio may differ.
SCOPE
1.1 This test method covers a procedure for measuring the resonance frequency in the flexural (transverse) mode of vibration of rectangular refractory brick or rectangularly shaped monoliths at room temperature. Young's modulus is calculated from the resonance frequency of the shape, its mass (weight), and dimensions.  
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.2.1 Although the Hertz (Hz) is an SI unit, it is derived from seconds which is also an inch-pound unit.  
1.3 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.  
1.4 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.

General Information

Status
Published
Publication Date
31-Aug-2020
ICS
81.080 - Refractories
Technical Committee
C08 - Refractories
Drafting Committee
C08.01 - Strength
Current Stage
Ref Project

Relations

Referred By
ASTM C1419-14(2020) - Standard Test Method for Sonic Velocity in Refractory Materials at Room Temperature and Its Use in Obtaining an Approximate Young's Modulus
Effective Date
01-Sep-2020
Referred By
ASTM C1548-02(2020) - Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio of Refractory Materials by Impulse Excitation of Vibration
Effective Date
01-Sep-2020

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ASTM C885-87(2020) - Standard Test Method for Young’s Modulus of Refractory Shapes by Sonic ResonanceASTM C885-87(2020) - Standard Test Method for Young’s Modulus of Refractory Shapes by Sonic Resonance
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ASTM C885-87(2020) - Standard Test Method for Young’s Modulus of Refractory Shapes by Sonic Resonance
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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: C885 − 87 (Reapproved 2020)
Standard Test Method for
Young’s Modulus of Refractory Shapes by Sonic
1
Resonance
This standard is issued under the fixed designation C885; 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 C623 Test Method for Young’s Modulus, Shear Modulus,
and Poisson’s Ratio for Glass and Glass-Ceramics by
1.1 This test method covers a procedure for measuring the
Resonance
resonance frequency in the flexural (transverse) mode of
C747 Test Method for Moduli of Elasticity and Fundamental
vibration of rectangular refractory brick or rectangularly
Frequencies of Carbon and Graphite Materials by Sonic
shaped monoliths at room temperature. Young’s modulus is
Resonance
calculated from the resonance frequency of the shape, its mass
C848 Test Method for Young’s Modulus, Shear Modulus,
(weight), and dimensions.
and Poisson’s Ratio For Ceramic Whitewares by Reso-
1.2 Units—The values stated in inch-pound units are to be
nance
regarded as standard. The values given in parentheses are
mathematical conversions to SI units that are provided for
3. Summary of Test Method
information only and are not considered standard.
3.1 Test specimens are vibrated in flexure over a broad
1.2.1 Although the Hertz (Hz) is an SI unit, it is derived
frequencyrange;mechanicalexcitationisprovidedthroughthe
from seconds which is also an inch-pound unit.
use of a vibrating driver that transforms an initial electrical
1.3 This standard does not purport to address all of the
signal into a mechanical vibration. A detector senses the
safety concerns, if any, associated with its use. It is the
resultingmechanicalvibrationsofthespecimenandtransforms
responsibility of the user of this standard to establish appro-
them into an electrical signal that can be displayed on the
priate safety, health, and environmental practices and deter-
screen of an oscilloscope to detect resonance by a Lissajous
mine the applicability of regulatory limitations prior to use.
figure.The calculation ofYoung’s modulus from the resonance
1.4 This international standard was developed in accor-
frequency measured is simplified by assuming that Poisson’s
dance with internationally recognized principles on standard-
1
ratio is ⁄6 for all refractory materials.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4. Significance and Use
mendations issued by the World Trade Organization Technical
4.1 Young’s modulus is a fundamental mechanical property
Barriers to Trade (TBT) Committee.
of a material.
2. Referenced Documents
4.2 This test method is used to determine the dynamic
2
modulus of elasticity of rectangular shapes. Since the test is
2.1 ASTM Standards:
nondestructive, specimens may be used for other tests as
C134 Test Methods for Size, Dimensional Measurements,
desired.
and Bulk Density of Refractory Brick and Insulating
Firebrick
4.3 Thistestmethodisusefulforresearchanddevelopment,
C215 Test Method for Fundamental Transverse,
engineering application and design, manufacturing process
Longitudinal, and Torsional Resonant Frequencies of
control, and for developing purchasing specifications.
Concrete Specimens
4.4 The fundamental assumption inherent in this test
1
method is that a Poisson’s ratio of ⁄6 is typical for heteroge-
1
This test method is under the jurisdiction of ASTM Committee C08 on neous refractory materials. The actual Poisson’s ratio may
Refractories and is the direct responsibility of Subcommittee C08.01 on Strength.
differ.
Current edition approved Sept. 1, 2020. Published September 2020. Originally
approved in 1978. Last previous edition approved in 2012 as C885 – 87 (2012).
5. Apparatus
DOI: 10.1520/C0885-87R20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 A block diagram of a suggested test apparatus arrange-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ment is shown in Fig. 1. Details of the equipment are as
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. follows:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C885 − 87 (2020)
FIG. 1 Block Diagram of Apparatus
5.1.1 Audio Oscillator, having a continuously variable, cali- 6. Sampling and Specimen Preparation
brated
...

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