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A dynamic lattice model for heterogeneous materials | ||
| Computational Methods in Civil Engineering | ||
| مقاله 3، دوره 2، شماره 1، فروردین 2011، صفحه 1-19 اصل مقاله (7.95 M) | ||
| نویسندگان | ||
| A.R. Khoei* ؛ M. H. Pourmatin | ||
| چکیده | ||
| In this paper, the mechanical behavior of three-phase inhomogeneous materials is modeled using the meso-scale model with lattice beams for static and dynamic analyses. The Timoshenko beam theory is applied instead of the classical Euler-Bernoulli beam theory and the mechanical properties of lattice beam connection are derived based on the continuum medium using the non-local continuum theory. The average acceleration method is applied for dynamic modeling of crack propagation in concrete. Finally, two experimental tests, including the simple tension experiment and the Nooru-Mohamed test, are simulated using the proposed model in order to investigate the effects of dynamic crack propagation, and the results are compared with those of static analysis. | ||
| کلیدواژهها | ||
| Lattice model; Beam element; Crack pattern; Dynamic behavior | ||
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