The Influence of Surface Opening Crack on the Ultrasonic Waves Near the Surface in Concrete Members
Peng Wang, Qing-bang Han, Xue-ping Jiang, Hao Zheng, Zhou-chen Xu
Available Online February 2017.
- https://doi.org/10.2991/icmeim-17.2017.64How to use a DOI?
- NDT, Concrete, Surface-opening Crack, Rayleigh Wave
- Based on the velocities of waves near the surface in concrete, the propagation path and travel time of different waves were calculated, and the influence of crack on these waves was analyzed. Some theoretical conclusions were verified by FEM. The ultrasonic waves were received by array transducers and the velocities of different waves were calculated and distinguished according to travel time in the simulation. Simulation results show that when sound wave propagates through the crack, longitudinal waves arrive at the receiving arrays and the crack diffracts transverse wave to generate new longitudinal wave and transverse wave by mode conversion, and the Rayleigh wave propagates along the surface (including the crack side walls). Finally it is found that the receiving signal amplitude (energy) is approximately linearly monotone decreasing with crack depth.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Peng Wang AU - Qing-bang Han AU - Xue-ping Jiang AU - Hao Zheng AU - Zhou-chen Xu PY - 2017/02 DA - 2017/02 TI - The Influence of Surface Opening Crack on the Ultrasonic Waves Near the Surface in Concrete Members BT - 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017) PB - Atlantis Press SP - 380 EP - 387 SN - 2352-5401 UR - https://doi.org/10.2991/icmeim-17.2017.64 DO - https://doi.org/10.2991/icmeim-17.2017.64 ID - Wang2017/02 ER -