@article { author = {Khoei, A.R. and H. Pourmatin, M.}, title = {A dynamic lattice model for heterogeneous materials}, journal = {Computational Methods in Civil Engineering}, volume = {2}, number = {1}, pages = {1-19}, year = {2011}, publisher = {University of Guilan}, issn = {}, eissn = {}, doi = {}, abstract = {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.}, keywords = {Lattice model; Beam element; Crack pattern; Dynamic behavior}, url = {https://cmce.guilan.ac.ir/article_894.html}, eprint = {https://cmce.guilan.ac.ir/article_894_5d36b1ec0dd14437f776492c02663586.pdf} }