Abstract
The applicability of the chevron-notch technique for changes monitoring in fracture behaviour of fibre/glass matrix composites has been investigated. A commercial SiC-fibre reinforced glass matrix composite was aged in argon at temperatures in the range 500–700 °C for duration of up to 1000 hrs. The mechanical properties of aged samples were evaluated at room temperature by using four-point flexure strength and three-point flexure chevron notch techniques. For identification of the unstable fracture onset an acoustic emission technique was applied. The fracture toughness values in the range 19–26 MPam1/2 were little affected by the ageing conditions except for the most severe ageing conditions. The procedure for the work of fracture determination and its dependence on ageing condition is presented.
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Dlouhý, I., Reinisch, M., Boccaccini, A.R. (2002). Fracture Toughness and Work of Fracture of SiC-Fibre Reinforced Glass Matrix Composite. In: Bradt, R.C., Munz, D., Sakai, M., Shevchenko, V.Y., White, K. (eds) Fracture Mechanics of Ceramics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4019-6_16
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DOI: https://doi.org/10.1007/978-1-4757-4019-6_16
Publisher Name: Springer, Boston, MA
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