AET （acoustic emission tomography） is a new visualization location method for inspecting and locating the intemal damages in the structures. In this paper, the AET is applied to detect and visualize damage source lo...AET （acoustic emission tomography） is a new visualization location method for inspecting and locating the intemal damages in the structures. In this paper, the AET is applied to detect and visualize damage source locations in the Q235B steel structure to validate its effectiveness. Firstly, the ABAQUS/Explicit simulation model.of the steel structure with one damaged circle in its center is built. And then, the simulated AE signals are obtained to establish the AE tomography. The results show that the damaged circle in the created model can be visualized clearly with the AET in its original location. Finally, the damage source location based on AET is compared with the traditional TOA （time of arrival） location method, and the better location accuracy is obtained. And this fact that further illustrates the AET has a great potential in the application of structure damage detection.展开更多
基金Acknowledgments This work is supported by the National Natural Science Foundation of China （No.51575101, No.51305176）, the introduction fund of High-level talents of JIT （No.JIT6201623）. In addition, the author is grateful to the EGWAE reviewers for their future reviewed work.
文摘AET （acoustic emission tomography） is a new visualization location method for inspecting and locating the intemal damages in the structures. In this paper, the AET is applied to detect and visualize damage source locations in the Q235B steel structure to validate its effectiveness. Firstly, the ABAQUS/Explicit simulation model.of the steel structure with one damaged circle in its center is built. And then, the simulated AE signals are obtained to establish the AE tomography. The results show that the damaged circle in the created model can be visualized clearly with the AET in its original location. Finally, the damage source location based on AET is compared with the traditional TOA （time of arrival） location method, and the better location accuracy is obtained. And this fact that further illustrates the AET has a great potential in the application of structure damage detection.
