A stereometric method for digitising the fracture surface of unidirectional fibre composites is used to calculate the breaking height differences of each fibre to its six nearest neighbours. From this height distribution the overload profile along the fibres, the critical length, interfacial shear strength, and the characteristic strength of the fibres are derived. This method is applied to ceramic fibre reinforced aluminium matrix composites tested in three point bending.
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References
1.
THOULESSM. D. and EVANSA. G.: Acta Metall., 1988, 36, 517–522.
2.
LIENKAMPM. and EXNERH. E.: J. Phys. (Orsay), 1993, 3, 1601–1606.
3.
CHOUT. W.: in ‘Structure and properties of composites’, Materials Science and Technology,Vol. 13, (ed. CahnR. W. et al), ch. 6, 249–257; 1993, Weinheim, VCH.
4.
HERRERA-FRANCOP. J. and DRZALL. T.: Composites, 1992, 23, 2–27.
5.
WELLSJ. K. and BEAUMONTP. W. R.: J. Mater. Sci., 1985, 20, 1275–1284.
6.
THOULESSD. M., SBAIZEROO., SIGLS. L., and EVANSA. G.: J. Am. Ceram. Soc., 1989, 72, 525–532.
7.
PAYEEJ.-P%., BRUZEKC. E., and MOLLIEXL.:in Proc. 2nd Eur. Conf. on ‘Advanced materials and processing’,141–142; 1991, London, The Institute of Metals.
8.
KELLYA. and TYSONW. R.: Mech. Phys. Solid, 1965, 13, 329–496.
9.
COXH. L.: Br. J. Appl. Phys., 1952, 3, 72–79.
10.
LIENKAMPM., KUNAVERU., and EXNERH. E.: J. Comput.-Assist. Microsc., 1994, 6, in the press.
