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The mechanical behaviour of a cross-weave ceramic matrix composite

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Abstract

In order to find out whether or not a cross-weave ceramic composite, graphite fibre/SiC matrix, would be prone to fatigue failure, tests in pulsating tension and pulsating compression have been carried out with the weave oriented in the 0/90 configuration. Both types of testing (at fairly high fractions of the ultimate monotonic failure load) cause creep strain, which is frequency dependent in tension, and ultimately complete failure can occur. Damage in pulsating tension is found to consist of cumulative microcracking and spalling, with the final failure mechanism broadly similar to that in monotonic deformation. Damage in pulsating compression appears dominated by delamination.

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Authors and Affiliations

  1. School of Engineering and Applied Science, University of Pennsylvania, 19104-6272, Philadelphia, PA

    Z. G. Wang, C. Laird & Z. Hashin

  2. Materials Sciences Corporation, Gwynedd Plaza, II, 19477, Spring House, PA

    W. Rosen & C. F. Yen

Authors
  1. Z. G. Wang
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  2. C. Laird
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  3. Z. Hashin
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  4. W. Rosen
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  5. C. F. Yen
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On leave from Tel Aviv University

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Wang, Z.G., Laird, C., Hashin, Z. et al. The mechanical behaviour of a cross-weave ceramic matrix composite. J Mater Sci 26, 5335–5341 (1991). https://doi.org/10.1007/BF01143230

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  • DOI: https://doi.org/10.1007/BF01143230

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