环氧树脂基混凝土细观结构数值模拟与性能分析
发布时间：2018-09-12 17:09
【摘要】：在细观层次上对新型桥面铺装材料环氧树脂基混凝土进行了研究,将其看作由骨料和环氧树脂基体二相介质组成的复合材料,应用蒙特卡罗方法模拟出材料的二维多边形骨料分布的几何模型;并于Ansys/Ls-Dyna与Hyper Mesh平台上进行数值模拟。根据试验的级配建立了相似的数值模型,进行了准静态压缩显式分析,得到了材料的弹性模量以及压缩强度。将数值计算的结果与试验结果进行了对比分析,结果表明,数值模型在材料的弹性模量与压缩强度计算上与试验结果吻合较好;并且能够较好地表现该材料的裂纹扩展形式。
[Abstract]:A new type of bridge deck paving material, epoxy resin based concrete, was studied at the meso-level, which was regarded as a composite composed of aggregate and epoxy resin matrix two-phase medium. The geometric model of two-dimensional polygonal aggregate distribution of materials is simulated by Monte Carlo method, and the numerical simulation is carried out on Ansys/Ls-Dyna and Hyper Mesh platforms. A similar numerical model is established according to the gradation of the test and the quasi-static compression analysis is carried out. The elastic modulus and compressive strength of the material are obtained. The numerical results are compared with the experimental results. The results show that the numerical model is in good agreement with the experimental results in the calculation of elastic modulus and compressive strength of the material, and the crack propagation form of the material can be well represented by the numerical model.
【作者单位】： 华南理工大学土木与交通学院;
【分类号】：TU528
本文编号：2239668
[Abstract]:A new type of bridge deck paving material, epoxy resin based concrete, was studied at the meso-level, which was regarded as a composite composed of aggregate and epoxy resin matrix two-phase medium. The geometric model of two-dimensional polygonal aggregate distribution of materials is simulated by Monte Carlo method, and the numerical simulation is carried out on Ansys/Ls-Dyna and Hyper Mesh platforms. A similar numerical model is established according to the gradation of the test and the quasi-static compression analysis is carried out. The elastic modulus and compressive strength of the material are obtained. The numerical results are compared with the experimental results. The results show that the numerical model is in good agreement with the experimental results in the calculation of elastic modulus and compressive strength of the material, and the crack propagation form of the material can be well represented by the numerical model.
【作者单位】： 华南理工大学土木与交通学院;
【分类号】：TU528
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