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Numerical Analysis on Mechanical Properties of Coral Aggregate Concrete Using 3D Random Mesoscale Model
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Zhangyu WU1, Jinhua ZHANG2, Hongfa YU1, Haiyan MA1, Qin FANG3
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2518 - 2528
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2518-2528
• Research Article •
Numerical Analysis on Mechanical Properties of Coral Aggregate Concrete Using 3D Random Mesoscale Model
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Zhangyu WU1, Jinhua ZHANG2, Hongfa YU1, Haiyan MA1, Qin FANG3
Affiliations
  • 1.College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
  • 2.School of Civil Engineering, Southeast University, Nanjing 211189, China
  • 3.College of National Defence Engineering, Army Engineering University of PLA, Nanjing 210007, China

    • WU Zhangyu(1994-), male, Doctoral candidate. E-mail:

About Author:

WU Zhangyu(1994-), male, Doctoral candidate. E-mail:

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210124
Outline
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To investigate the mechanical behavior and failure mechanism of coral aggregate concrete (CAC) under static and dynamic load, this paper proposed a 3D random mesoscale model composed of three mesoscale components, i.e., aggregate, mortar matrix and interfacial transition zone (ITZ). Using the 3D random convex particle model into the characterization of the random features of broken coral aggregates, i.e., shape and spatial distribution, was proposed. Based on the developed model and corresponding material models, i.e., CONCRETE_DAMAGE_REL3 and HOLMQUIST-JOHNSON-COOK, the static- and dynamic responses of CAC were analyzed in terms of stress-strain relation, failure pattern and process, strain rate effect, etc. The failure mechanism of CAC under different loading conditions was discussed as well. The results indicate that there is a high reliability for the developed 3D random mesoscale model in simulating the static- and dynamic properties of CAC, particularly in its failure patterns and fracture processes, which is of great significance for the failure mechanism analysis of CAC under various loading conditions.

coral aggregate concrete  /  3D mesoscale modelling  /  random convex particle model  /  static mechanical property  /  dynamic mechanical property  /  strain rate effect
吴彰钰, 张锦华, 余红发, 麻海燕, 方秦. 基于三维随机细观模型的珊瑚混凝土力学性能模拟. 硅酸盐学报, 2021 , 49 (11) : 2518 -2528 . DOI: 10.14062/j.issn.0454-5648.20210124
Zhangyu WU, Jinhua ZHANG, Hongfa YU, Haiyan MA, Qin FANG. Numerical Analysis on Mechanical Properties of Coral Aggregate Concrete Using 3D Random Mesoscale Model[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2518 -2528 . DOI: 10.14062/j.issn.0454-5648.20210124
Appendix
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210124
  • Receive Date：2021-01-23
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
Affiliations
History
  • Received：2021-01-23
  • Revised：2021-03-24
Funding
Affiliations
    1.College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
    2.School of Civil Engineering, Southeast University, Nanjing 211189, China
    3.College of National Defence Engineering, Army Engineering University of PLA, Nanjing 210007, China

Corresponding:

ZHANG Jinhua(1981-), male, Ph. D., Professor. E-mail:
YU Hongfa(1964-), male, Ph. D., Professor.
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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