Modeling of statistical tensile strength tensile of short-fiber composites

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This Paper develops a statistical strength theory for three-dimensionally (3-D) oriented short-fiber reinforced composites. Short-fiber composites are usually reinforced with glass and ceramic short fibers and whiskers. These reinforcements are brittle and display a range of strength values, which can be statistically characterized by a Weibull distribution. This statistical nature of fiber strength needs to be taken into account in the prediction of composite strength. In this paper, the statistical nature of fiber strength is incorporated into the calculation of direct fiber strengthening, and a maximum-load composite failure criterion is adopted to calculate the composite strength. Other strengthening mechanisms such ... continued below

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22 p.

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Zhu, Y.T.; Blumenthal, W.R.; Stout, M.G. & Lowe, T.C. October 5, 1995.

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Description

This Paper develops a statistical strength theory for three-dimensionally (3-D) oriented short-fiber reinforced composites. Short-fiber composites are usually reinforced with glass and ceramic short fibers and whiskers. These reinforcements are brittle and display a range of strength values, which can be statistically characterized by a Weibull distribution. This statistical nature of fiber strength needs to be taken into account in the prediction of composite strength. In this paper, the statistical nature of fiber strength is incorporated into the calculation of direct fiber strengthening, and a maximum-load composite failure criterion is adopted to calculate the composite strength. Other strengthening mechanisms such as residual thermal stress, matrix work hardening, and short-fiber dispersion hardening are also briefly discussed.

Physical Description

22 p.

Notes

OSTI as DE96002779

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  • Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996

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  • Other: DE96002779
  • Report No.: LA-UR--95-3611
  • Report No.: CONF-960202--1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 150698
  • Archival Resource Key: ark:/67531/metadc618608

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  • October 5, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 29, 2016, 4:17 p.m.

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Zhu, Y.T.; Blumenthal, W.R.; Stout, M.G. & Lowe, T.C. Modeling of statistical tensile strength tensile of short-fiber composites, article, October 5, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc618608/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.