Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation

Wang, Chao; Zhou, Xinyu; Deng, Zhaopeng; Wang, Xiaohua; Zhang, Sherong; Wang, Gaohui; Wei, Peiyong

doi:10.3390/ma18010015

Open AccessArticle

Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation

by

Chao Wang

^1,2,

Xinyu Zhou

²,

Zhaopeng Deng

²,

Xiaohua Wang

^1,2,*

,

Sherong Zhang

²,

Gaohui Wang

¹ and

Peiyong Wei

²

¹

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China

²

State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation & School of Civil Engineering, Tianjin University, Tianjin 300072, China

^*

Author to whom correspondence should be addressed.

Materials 2025, 18(1), 15; https://doi.org/10.3390/ma18010015

Submission received: 8 November 2024 / Revised: 3 December 2024 / Accepted: 19 December 2024 / Published: 24 December 2024

(This article belongs to the Special Issue Dynamic Behavior of Advanced Materials and Structures (Second Edition))

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Abstract

Hydraulic concrete is quite different from normal concrete in the terms of aggregate gradation and construction-induced interfaces. To explore their influences on the dynamic mechanical behaviors of hydraulic concrete, several mesoscale numerical models with different aggregate gradations and interfaces were established and subjected to dynamic compressive or tensile loadings. The results show that aggregate gradation significantly affected hydraulic concrete failure patterns under dynamic loads, but interface effects were less obvious, and stressing uniformity improved with an increasing loading rate. The dynamic compressive and tensile strengths of hydraulic concrete showed a strain rate effect independent of gradation, but decreased with larger coarse aggregates, especially at higher rates. Weak-bonding interfaces significantly reduced strength at low loading rates, with a more pronounced effect on tensile strength than compressive strength. The results of this study provide a theoretical basis for the application of hydraulic concrete containing large-size aggregates in practical engineering.

Keywords: hydraulic concrete; aggregate gradation; construction-induced interface; mesoscale numerical simulation; dynamic mechanical behavior

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MDPI and ACS Style

Wang, C.; Zhou, X.; Deng, Z.; Wang, X.; Zhang, S.; Wang, G.; Wei, P. Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation. Materials 2025, 18, 15. https://doi.org/10.3390/ma18010015

AMA Style

Wang C, Zhou X, Deng Z, Wang X, Zhang S, Wang G, Wei P. Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation. Materials. 2025; 18(1):15. https://doi.org/10.3390/ma18010015

Chicago/Turabian Style

Wang, Chao, Xinyu Zhou, Zhaopeng Deng, Xiaohua Wang, Sherong Zhang, Gaohui Wang, and Peiyong Wei. 2025. "Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation" Materials 18, no. 1: 15. https://doi.org/10.3390/ma18010015

APA Style

Wang, C., Zhou, X., Deng, Z., Wang, X., Zhang, S., Wang, G., & Wei, P. (2025). Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation. Materials, 18(1), 15. https://doi.org/10.3390/ma18010015

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Discussion on the Gradation and Interface Effects on the Dynamic Mechanical Behaviors of Hydraulic Concrete Based on Meso-Mechanical Simulation

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