ASTM C1557-20 + Redline

ASTM C1557-20 + Redline

Standard Test Method for Tensile Strength and Young's Modulus of Fibers

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1.1 ,This test method covers the preparation, mounting, and testing of single fibers (obtained either from a fiber bundle or a spool) for the determination of tensile strength and Young's modulus at ambient temperature. Advanced ceramic, glass, carbon, and other fibers are covered by this test standard.

1.2 ,The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, 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.


Significance and Use:

5.1 ,Properties determined by this test method are useful in the evaluation of new fibers at the research and development levels. Fibers with diameters up to 250 ×, 10–,6 m are covered by this test method. Very short fibers (including whiskers) call for specialized test techniques (1)3 and are not covered by this test method. This test method may also be useful in the initial screening of candidate fibers for applications in polymer, metal, or ceramic matrix composites, and for quality control purposes. Because of their nature, ceramic fibers do not have a unique tensile strength, but rather a distribution of tensile strengths. In most cases when the tensile strength of the fibers is controlled by one population of flaws, the distribution of fiber tensile strengths can be described using a two-parameter Weibull distribution, although other distributions have also been suggested (2, 3). This test method constitutes a methodology to obtain the tensile strength of a single fiber. For the purpose of determining the parameters of the distribution of fiber tensile strengths, it is recommended to follow this test method in conjunction with Practice C1239.

Additional Info

Author American Society for Testing and Materials (ASTM International)
Committee C28.07 - Committee C28 on Advanced Ceramics
Published by ASTM
Document type Standard
Theme ,Advanced ceramics
ICS 81.060.30 : Advanced ceramics
Number of pages 11
Replace ASTM C1557-14 + Redline
Set ASTM Volume 15.01 - Multi-User - Single-Site Online
Document history ,,,,
Keyword C1557

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