Acoustic Emission and Ultrasound for Damage Characterization of Concrete Elements
作者： Dimitrios G Aggelis , Tomoki Shiotani , Shouhei Momoki , Akinobu Hirama
DOI: 10.14359/51663333
关键词: Transient (oscillation) 、 Acoustic emission 、 Structural engineering 、 Ultrasound 、 Acoustics 、 Cracking 、 Bending 、 Materials science 、 Tomographic reconstruction 、 Tomography 、 Nucleation
摘要: The acoustic emission (AE) technique is widely used for real time damage detection in concrete. It uses stress waves emerging from nucleation and propagation of cracks recorded on the surface material by suitable sensors. In present study, AE to monitor deterioration progress reinforced concrete beams subjected four-point bending. specimens consist two layers plain fiber At different loading steps, ultrasonic pulse velocity measurements were also conducted obtain transient three-dimensional tomographic reconstruction internal structure. source location good agreement with structure visualization results are confirmed visual observation actual developed. show that tomography useful tools study failure
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sci-hub.st 参考文章(20)
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