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The mechanical behavior of a hybrid metal matrix composite

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Abstract

The mechanical behavior of a unidirectionally reinforced hybrid metal matrix composite in two different states has been studied: one with a “weakly bonded” interface and the other with a “strong” interface. Similarities and contrasts in mechanical behavior have been related to the properties of the interface. The longitudinal tensile strength and the crack growth initiation resistance are found to be insensitive to the condition of the interface. However, the material with the “weak” interface exhibits extensive debonding, resulting in a steeply increasing resistance curve and a large work of rupture. Furthermore, the weak interface reduces the transverse and torsional strength of the composite. This study illustrates how the tailoring of interfacial properties can improve the mechanical performance of composites for certain structural applications.

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Authors and Affiliations

  1. Materials Department, University of California, 93106, Santa Barbara, CA

    F. Zok (Assistant Professor)

  2. Department of Mechanical and Environmental Engineering, University of California, 93106, Santa Barbara, CA

    S. Jansson (Research Engineer)

  3. Materials Department, University of California, 93106, Santa Barbara, CA

    A. G. Evans (Professor)

  4. United Technologies Research Center, 06108, East Hartford, CT

    V. Nardone (Senior Research Scientist)

Authors
  1. F. Zok
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  2. S. Jansson
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  3. A. G. Evans
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  4. V. Nardone
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Zok, F., Jansson, S., Evans, A.G. et al. The mechanical behavior of a hybrid metal matrix composite. Metall Trans A 22, 2107–2117 (1991). https://doi.org/10.1007/BF02669878

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  • DOI: https://doi.org/10.1007/BF02669878

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