060无细粒混凝土抗压强度试验的离散元模型

Proceedings of The Eighteenth International Conference of Experimental Mechanics Pub Date : 2018-08-02 DOI:10.3390/ICEM18-05470

Z. Gyurkó, R. Nemes

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引用次数: 0

摘要

混凝土的离散元建模需要对模型参数进行精确校准，对于复杂的模型来说，这是一项耗时且计算代价高昂的任务。本文介绍了一种估算不同粒径分布和骨料类型混凝土模型参数(平行键法向强度)的方法。参数估计是一个基于物理测量数据的优化问题。本文提出了一种基于混凝土密度和抗压强度估算平行粘结法向强度的模型及其参数。

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060 Discrete element modelling of compressive strength testing of no-fines concrete

Discrete Element modelling of concrete requires the precise calibration of model parameters that is a long lasting and computationally expensive task in case of complex models. Present study introduces a method for estimating a model parameter (normal strength of parallel bonds) for concretes with different particle size distribution and aggregate type. The parameter estimation leads to an optimization problem based on physical measurement data. In the present paper, a model and its parameters are proposed to estimate normal strength of parallel bonds based on the density and compressive strength of concrete.

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Proceedings of The Eighteenth International Conference of Experimental Mechanics

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