Abstract
The process of quasi-static growth of flat cracks in solids with regular structures is investigated. The structures are considered, every of which is characterized by one linear size. The correlated discrete-integral criteria of strength for every structure are proposed. Three correlated criteria are formulated, these are for a porous body, a granular material and a material with an ideal crystal lattice. The estimations of critical stress intensity factor (SIF) and critical lengths of cracks are obtained. The critical loads are evaluated in dependence on geometrical and force parameters. The modifications of the proposed criteria for second and third problems allow to describe the satellite nucleation of microcrack in the vicinity of macrocrack tip.
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Kornev, V.M. (2002). Multiscale Discrete-Integral Strength Criteria. Satellite Nucleation of Microcracks. In: Bradt, R.C., Munz, D., Sakai, M., Shevchenko, V.Y., White, K. (eds) Fracture Mechanics of Ceramics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4019-6_8
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DOI: https://doi.org/10.1007/978-1-4757-4019-6_8
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