文章基本信息

标题：A dynamic lattice model for heterogeneous materials
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作者：A.R. Khoei ; M.H. Pourmatin
期刊名称：Computational Methods in Civil Engineering
印刷版ISSN：2228-5687
出版年度：2011
卷号：2
期号：1
页码：1-20
出版社：University of Guilan
摘要：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.
关键词：Lattice model; Beam element; Crack pattern; Dynamic behavior.