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Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission
With the development of prefabricated building (PB), the connection quality problems among the prefabricated components may cause negative effect on the safety of the entire PB, and severe defects in the connection may lead to catastrophic accidents. Herein, the half-grouted sleeve connection is one of the most commonly used connection in PB While, the grouting process has to be completed on site; so, internal defects are unavoidable. Currently, there are few effective and easy-used inspection methods which can be used in field and realize the real-time monitoring. Therefore, this study proposes to use the acoustic emission (AE) method to monitor the damage progress of sleeves with different defect rates under monotonic tensile tension. Different defect levels were artificially introduced in the sample. Two different failure modes were identified by AE, and the AE signatures are different. The proposed method provides a feasible nondestructive method for prediction of damage in half-grouted sleeve in the early stage.
Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission
With the development of prefabricated building (PB), the connection quality problems among the prefabricated components may cause negative effect on the safety of the entire PB, and severe defects in the connection may lead to catastrophic accidents. Herein, the half-grouted sleeve connection is one of the most commonly used connection in PB While, the grouting process has to be completed on site; so, internal defects are unavoidable. Currently, there are few effective and easy-used inspection methods which can be used in field and realize the real-time monitoring. Therefore, this study proposes to use the acoustic emission (AE) method to monitor the damage progress of sleeves with different defect rates under monotonic tensile tension. Different defect levels were artificially introduced in the sample. Two different failure modes were identified by AE, and the AE signatures are different. The proposed method provides a feasible nondestructive method for prediction of damage in half-grouted sleeve in the early stage.
Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission
Glisic, Branko (editor) / Limongelli, Maria Pina (editor) / Ng, Ching Tai (editor) / Zhang, Lu (author) / Zeng, Jiajun (author) / Tang, Yongze (author) / Li, Hongyu (author) / Fan, Yiwen (author) / Zhang, Tonghao (author)
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024 ; 2024 ; Long Beach, California, United States
Proc. SPIE ; 12949
2024-05-09
Conference paper
Electronic Resource
English
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