Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission

Lu Zhang; Jiajun Zeng; Yongze Tang; Hongyu Li; Yiwen Fan; Tonghao Zhang

doi:10.1117/12.3008628

9 May 2024 Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission

Lu Zhang, Jiajun Zeng, Yongze Tang, Hongyu Li, Yiwen Fan, Tonghao Zhang

Proceedings Volume 12949, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024; 129491L (2024) https://doi.org/10.1117/12.3008628
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Conference Poster

Abstract

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.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lu Zhang, Jiajun Zeng, Yongze Tang, Hongyu Li, Yiwen Fan, and Tonghao Zhang "Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission", Proc. SPIE 12949, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024, 129491L (9 May 2024); https://doi.org/10.1117/12.3008628

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