Local and Global Fracture Properties in Metal Matrix Composites

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The relation between the local and global values of the fracture initiation toughness is investigated for a cast Al6061-based metal matrix composite with 10% of Al2O3 particles after different heat treatments. The global values of the fracture initiation toughness are determined by conventional fracture mechanics tests. The local values of the fracture initiation toughness are found by measuring the critical crack tip opening displacement (CODi) at different locations along the crack front. To do this, an automatic fracture surface analysis system is applied. Despite of the large scatter of the individual CODi-values, a good correlation to the global fracture initiation toughness values is found.

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Edited by:

Jaroslav Pokluda

Pages:

215-218

Citation:

I. Sabirov and O. Kolednik, "Local and Global Fracture Properties in Metal Matrix Composites", Materials Science Forum, Vol. 482, pp. 215-218, 2005

Online since:

April 2005

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$38.00

[1] T.V. Clyne, P.J. Withers: An Introduction to Metal Matrix Composites (Cambridge University Press, UK 1993).

[2] S. Suresh, A. Mortensen, A. Needleman: Fundamentals of Metal Matrix Composites (Butterworth - Heinemann, Boston, USA 1993).

[3] O. Kolednik, I. Sabirov: In: K. Ravi-Chandar, B.L. Karihaloo, T. Kishi, R.O. Ritchie et al., Eds. Advances in Fracture Research, Proceedings of ICF-10, Elsevier, Oxford, UK (2001) paper 410.

[4] I. Sabirov, D. Duschlbauer, H.E. Pettermann, O. Kolednik: In: K.M. Golos, D. Kocanda, A. Naimitz, Eds. Fracture Mechanics beyond 2000, Proceedings of ECF-14, Elsevier, Amsterdam, Vol. 3 (2002) p.171.

[5] I. Sabirov, D. Duschlbauer, H.E. Pettermann, O. Kolednik: In: Proceedings of 14th European Symposium Verbundwerkstoffe und Werkstoffverbunde, Vienna, Austria (2003), p.127.

DOI: https://doi.org/10.1002/9783527609017.ch19

[6] ESIS P2-92: ESIS Procedure for Determining the Fracture Behaviour of Materials (European Structural Integrity Society, Delft, The Netherlands 1992).

[7] S. Scherer, O. Kolednik: Microscopy and Analysis Vol. 70 (2001) p.15.

[8] J. Stampfl, S. Scherer, M. Berchthaler, M. Gruber, O. Kolednik: Int. J. Fracture Vol. 78 (1996) p.35.

DOI: https://doi.org/10.1007/bf00018499

[9] J. Stampfl, O. Kolednik: Int. J. Fracture Vol. 101 (2000) p.321.

[10] O. Kolednik, H.P. Stüwe: Engng. Fracture Mech. Vol. 21 (1985) p.145.

[11] C.F. Shih: J. Mech. Phys. Solids Vol. 29 (1981) p.305.

[12] C.F. Shih: Tables of HRR Singular Field Quantities, MRL E-147 (Materials Research Laboratory, Brown University, Providence, RI, USA 1983). 0 2 4 6 8 10 12 RT 8h 24h 200h Heat treatment Ji [kN/m] local from CODi global global J0. 2/Bl Ji Ji.