Significance and Use
Sonic velocity measurements are useful for comparing materials.
A value for Young’modulus can be obtained for many applications, which will generally be within 10 % of the value obtained by other methods, such as in Test Method C 747.
1. Scope
1.1 This test method covers a procedure for measuring the sonic velocity in manufactured carbon and graphite materials having a grain size less than 0.80 mm (1/32 in.). The sonic velocity can be used to obtain an approximate value for Young's modulus.
1.2 The values stated in SI units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
C559 Test Method for Bulk Density by Physical Measurement of Manufactured Carbon and Graphite Articles
C747 Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance
IEEE/ASTM SI 10 Standard for Use of the International System of Units (SI) (the Modern Metric System)
Index Terms
carbon; graphite; sonic; velocity; Young's Modulus; ICS Number Code 71.100.99; 71.100.99
DOI: 10.1520/C0769-98R05
ASTM International is a member of CrossRef.
Citing ASTM Standards
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