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首页> 外文期刊>Archives of Hydro-engineering and Environmental Mechanics >Modelling of Concrete Behaviour with a Non-Local Continuum Damage Approach
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Modelling of Concrete Behaviour with a Non-Local Continuum Damage Approach

机译：用非局部连续体损伤方法对混凝土行为进行建模

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The paper presents FE-results on the behaviour of concrete under plane strain conditions. The material was modelled using a simple isotropic damage continuum model. The model was enriched by non-local terms to avoid a pathological mesh-sensitivity and to obtain a well-posed rate boundary value problem. The constitutive model was used to simulate localization of deformation in 3 benchmark problems: a double-edge notched specimen under uniaxial tension and a notched beam under three- and four-point bending. Attention was laid on the effect of a characteristic length on the load-displacement curves and strain localization. The FE-results were compared with experiments and other numerical studies.
机译：本文介绍了在平面应变条件下混凝土性能的有限元分析结果。使用简单的各向同性损伤连续体模型对材料进行建模。通过使用非局部项来丰富模型，可以避免病理性网格敏感度并获得恰当的速率边界值问题。本构模型用于模拟三个基准问题中的变形局部：单轴拉力下的双刃缺口试样和三点和四点弯曲下的缺口梁。注意特征长度对载荷-位移曲线和应变局部化的影响。有限元结果与实验和其他数值研究进行了比较。

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