A mechanical model of two-dimensional cellular materials with negative Poisson's ratio, composed of partly re-entrant and partly regular hexagons, was proposed based on rotation mechanism.

基于旋转机制，提出了一种具有负泊松比效应的、由部分内凹以及部分规则六边形组成的二维多胞材料力学模型；

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Based on the model, the influence of the thickness, elastic modulus and Poisson's ratio of the interfacial transition zone on the relative elastic modulus of concrete is analyzed in detail.

另外，基于该模型，可分析界面层厚度、弹性模量和泊松比对混凝土相对弹性模量的影响。

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