随机泡沫介观模型和泡沫混凝土的力学性能

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
N. Hu, F. Deng, W. R. Xu, Y. J. Deng, J. Q. Yang, J. Zhang, R. Yang
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引用次数: 0

摘要

随着各种多元复合材料的发展,出现了多种研究具有复杂微观结构材料力学性能的方法。作为一种典型的多元复合材料,泡沫混凝土的力学性能和研究方法也受到广泛关注。为了更快地预测泡沫混凝土的力学性能,我们利用 Python 软件实现了泡沫孔隙的随机生成,为多种泡沫混凝土材料建立了随机泡沫三维几何模型。在随机泡沫三维几何模型的基础上,利用 mesomechanics 中的材料等效参数计算方法,计算出泡沫混凝土的等效参数。寻求了孔隙率与泡沫孔径之间的等效材料参数关系。最后,对带有内聚单元的泡沫混凝土立方体进行了拉伸计算,以研究其应力-应变分布以及裂缝的产生和发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Random Foam Meso-Model and Mechanical Properties of Foam Concrete

Random Foam Meso-Model and Mechanical Properties of Foam Concrete

With the development of various multi-composite materials, there are several methods to study the mechanical properties of materials with complex microstructures. As a typical multi-composite material, foam concrete’s mechanical properties and research methods are also widely concerned. To predict the mechanical properties of foam concrete more quickly, we use Python software to realize the random generation of foam pores to establish a random three-dimensional geometric model of foam for many foam concrete materials. Based on the random foam three-dimensional geometric model, the equivalent parameters of foam concrete are calculated by the method of calculating the equivalent parameters of materials in mesomechanics. The relationship of equivalent material parameters between porosity and foam pore diameter is sought. Finally, the tensile calculation of a foam concrete cube with a cohesive unit is carried out to study its stress-strain distribution and the initiation and development of cracks.

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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
期刊介绍: Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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