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Radial cracks in boron fibres

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Abstract

The morphology of so-called radial cracks in boron fibres is studied in transverse and axial cross-sections, as well as in fracture surfaces. A formation mechanism is proposed in terms of the transverse residual stress pattern. Small pre-existing voids, (so-called proximate voids) are found to act as stress concentrators which contribute to the opening up of radial cracks in quantitative agreement with the Griffith criterion for brittle fracture.

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Authors and Affiliations

  1. Institute of Technology, Uppsala University, Box 534, S-751 21, Uppsala, Sweden

    Jorge Vega-Boggio

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  1. Jorge Vega-Boggio
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  2. Olof Vingsbo
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Vega-Boggio, J., Vingsbo, O. Radial cracks in boron fibres. J Mater Sci 12, 2519–2524 (1977). https://doi.org/10.1007/BF00553939

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  • DOI: https://doi.org/10.1007/BF00553939

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