Abstract
This paper presents elastic stress distributions near a cracktip in a continuous fiber composite. The material heterogeneity is explicitly accounted for by using the finite element method and a new Mesh Superposition Technique. This new technique superposes a fine mesh with heterogeneous material properties over a coarse mesh with homogeneous ones. The results indicate that the load transferred by fibers near a cracktip may be well described by the homogeneous orthotropic elastic K 1 field. A technique to postprocess the K 1 field to accurately obtain the detailed stress distributions within the fiber and matrix is also presented.
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Fish, J., Fares, N. & Nath, A. Micromechanical elastic cracktip stresses in a fibrous composite. Int J Fract 60, 135–146 (1993). https://doi.org/10.1007/BF00012441
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DOI: https://doi.org/10.1007/BF00012441