Abstract
The fracture strain of discontinuously reinforced metal matrix composites (DRMMCs) is studied according to a damage mechanics model proposed by McClintock, with a localized crack propagation hypothesis and particle-related crack initiation mechanism. An estimation equation is proposed. The estimated results are verified with the data available in the literature and those measured on some types of DRMMCs obtained by powder metallurgical techniques. The experimental results show good agreement with the estimation model.
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Downes, T.W. and King, J.E. (1993). The effect of microstructure on the fracture toughness of a metal matrix composites. Composites 24(3), 276.
Evensen, J.D. and Verk, A.S. (1981). The influence of particle cracking on the fracture strain of some Al-Si alloys. Scripta Metallurgica 15, 1131–1133.
Gaofeng, Q., Donglang, C., Yujiu, S. and Mingjing, T. (1995). Studies on strengthening mechanisms of DRMMCs, In Proc. ICCM-10, V1, 521 (Edited by A. Poursartip, K. Street), Whistler, Canada.
Gaofeng, Q., Donglang, C., Yujiu, S. and Mingjing, T. (1998). Comparison of mechanical properties of particulate aluminum matrix composites, submitted to Materials Science and Engineering.
Jun, Sun, Li, Z.H., Deng, Z.J. and Tu, M.J. (1989). Constraint intensity in crack tip fields and elastic-plastic fracture criterion. Engineering Fracture Mechanics 34(2), 413.
Kim, K.T. and Lee, C.H. (1993). Effects of heat treatment and Ni-P coating for SiC particulate on mechanical behaviors of SiCp/2024Al alloys composites, In Proc. ICCM-9 (Edited by A. Miravette), Madrid, Spain, 6, pp. 113.
Liu, Y.B., Lim, S.C. and Lu L. et al., (1993). Fabrication of metal matrix composites using powder metallurgy techniques, In Proc. ICCM-9 (Edited by A. Miravette), Madrid, Spain, 6, pp. 770.
McHugh, P.E., Asaro, R.J. and Shih, C.F. (1993). Computational modeling of metal matrix composite materials. Acta Metallurgica Materials 41(5), 1461.
Whitehouse, A.F. and Clyne, T.W. (1993). Cavity formation during tensile straining of particle and short fiber metal matrix composites. Acta Metallurgica Materials 41(6), 1701.
Zhang, J.X., Ueda, Y. and Murakawa, H. (1992). Study on the J-integral of shallow interfacial cracks in ceramicmetal joint. Transaction JWRI 20(1), 117.
Zhiwen, Lu (1990). Foundation of Damage Mechanics (in Chinese), Xi'an Jiaotong University Press, p 140.
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Gaofeng, Q., Yujiu, S., Mingjing, T. et al. Study on fracture strain of discontinuously reinforced metal matrix composites. International Journal of Fracture 98, 103–110 (1999). https://doi.org/10.1023/A:1018729102223
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DOI: https://doi.org/10.1023/A:1018729102223