Three-dimensional Cosserat homogenization of masonry structures: elasticity
Three-dimensional Cosserat homogenization of masonry structures: elasticity
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砌体结构的三维 Cosserat 均质化：弹性
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
I. Vardoulakis
中科院分区：
文献类型：
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作者：
I. Stefanou;J. Sulem;I. Vardoulakis
砌体是由规则分布的砖和砂浆形成的两相复合材料。这里遵循的均质化过程扩展了 Sulem 和 Mühlhaus 的 2D 方法（Mech Cohesive Frict Mater 2:31–46, 1997），并导致各向异性 3D Cosserat 连续体。 Cosserat 连续体丰富的运动学使我们能够对经历面内和面外旋转的微单元系统进行建模。通过比较离散块系统的色散函数与连续块系统的色散函数，讨论了导出的 Cosserat 连续统的有效性域，结果发现两者非常一致。
Masonry is a two-phase composite material formed by regularly distributed bricks and mortar. The homogenization procedure followed here extends the 2D approach of Sulem and Mühlhaus (Mech Cohesive Frict Mater 2:31–46, 1997) and leads to an anisotropic 3D Cosserat continuum. The enriched kinematics of the Cosserat continuum allows us to model microelement systems undergoing in-plane and out-of-plane rotations. The domain of validity of the derived Cosserat continuum is discussed by comparing the dispersion function of the discrete system of blocks with the continuous one and is found to be in good agreement.