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Acoustic Emission Characteristics of Concrete Beam with Different Reinforcements during Bending and Damage Process
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Da-zhong ZHANG1, Shi-yi ZHANG1, 2, *, S M CHAYAN1, Ying-fang FAN2, Jun-Jie ZHENG3
Science Technology and Engineering | 2025, 25(18) : 7729 - 7742
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Science Technology and Engineering | 2025, 25(18): 7729-7742
• Papers·Architectural Science •
Acoustic Emission Characteristics of Concrete Beam with Different Reinforcements during Bending and Damage Process
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Da-zhong ZHANG1, Shi-yi ZHANG1, 2, *, S M CHAYAN1, Ying-fang FAN2, Jun-Jie ZHENG3
Affiliations
  • 1 School of Architectural Engineering and Spatial Information, Shandong University of Technology, Jinan 255000, China
  • 2 Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China
  • 3 School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Published: 2025-06-28 doi: 10.12404/j.issn.1671-1815.2406482
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To analyze the crack development characteristics of different reinforcement concrete beams during bending failure, and to explore the acoustic emission characteristics and bending performance degradation of the beams, a four-point bending test was conducted in combination with acoustic emission technology to establish the relationship between the bending failure process and acoustic emission signals of three different concrete beams. The experimental results show that the RA(rise time/maximum amplitude)-AF(average frequency) signals during the damage evolution of concrete beams with different reinforcements have obvious differences, the proportion of shear crack signal RA of reinforced beams, less-reinforced beams, and super-reinforced beams is much higher than the proportion of diagonal crack signal AF. The common characteristics of the amplitude distribution of bending damage at various stages of differently reinforced beams are mainly reflected in the amplitude peaks in the frequency bands 4~6 kHz, 13.5~16 kHz, and 53~57 kHz. When the beam reaches a certain load, the amplitude peaks in the high-frequency band will suddenly rise, indicating the yielding of the internal reinforcement of the beam and the entry of the structure into the failure stage. This can be used as an important basis for monitoring the extent of internal damage to the structure through time-frequency transformation of acoustic emission signals.

reinforced concrete beam  /  four-point bending  /  acoustic emission  /  numerical simulation
Da-zhong ZHANG, Shi-yi ZHANG, S M CHAYAN, Ying-fang FAN, Jun-Jie ZHENG. Acoustic Emission Characteristics of Concrete Beam with Different Reinforcements during Bending and Damage Process[J]. Science Technology and Engineering, 2025 , 25 (18) : 7729 -7742 . DOI: 10.12404/j.issn.1671-1815.2406482
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Year 2025 volume 25 Issue 18
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Article Info
doi: 10.12404/j.issn.1671-1815.2406482
  • Receive Date：2024-08-29
  • Online Date：2025-12-17
  • Published：2025-06-28
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  • Received：2024-08-29
  • Revised：2025-04-02
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Affiliations
    1 School of Architectural Engineering and Spatial Information, Shandong University of Technology, Jinan 255000, China
    2 Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China
    3 School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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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
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Genus		 种数
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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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