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Cracks in fiber composites: Determination of the stress intensity factor by the polarization-optical method

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Mechanics of Composite Materials Aims and scope

Abstract

Composite plates with cracks coinciding with one of the principal axes of anisotropy of the material were examined. The mechanical behavior of the composite is described by the model of a homogeneous orthotropic body. A method was proposed for determining the stress intensity factor K1 with the known values of the fringe orders m in the vicinity of the tip of the crack. It was found that the value of K1 is a function of the ratio of the length of the plates to their width d/b. The stress intensity factor K1 increases with a decrease in ratio d/b. Tlie effect of the orthotropy of the material on the value of K1 is also a function of the ratio of the length of the plate to its width d/b.

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Authors and Affiliations

  1. Institute of Mechanics, M. V. Lomonosov Moscow State University, Moscow, Russia

    V. P. Netrebko

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  1. V. P. Netrebko
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 31, No. 6, pp. 769–775, November–December, 1996.

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Netrebko, V.P. Cracks in fiber composites: Determination of the stress intensity factor by the polarization-optical method. Mech Compos Mater 31, 544–548 (1996). https://doi.org/10.1007/BF00634901

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  • DOI: https://doi.org/10.1007/BF00634901

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