Influence of particle size on the fracture toughness of a PP-based particulate composite |
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Authors: | P. Hutar Z. Majer L. Nahlik L. Shestakova Z. Knesl |
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Affiliation: | (1) Institute of Physics of Materials, Zhizhkova 22, 616 62 Brno, Czech Republic;(2) Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic |
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Abstract: | The main focus of this paper is a numerical investigation of the fracture behavior of a particulate composite (CaCO3-PP). The composite is modeled as a three-phase continuum and simulated numerically on a microscale by using finite elements. The propagation of a microcrack in a matrix filled with rigid particles covered by an interphase is analyzed. The stress distribution is determined for a variety of particle sizes and material properties of the interphase. The final results, in agreement with experimental data, confirm that the microcrack behavior depends on particle sizes. Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 45, No. 3, pp. 411-418, May-June, 2009. |
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Keywords: | particulate composites microcrack interface toughness numerical investigation finite-element method |
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