A Free Plate Model Could Predict Ultrasonic Guided Waves Propagation in a 3D Printed Skull Phantom

被引：0
|
作者：
Gao, Jialiang [1 ]
Chen, Qi [1 ]
Jiang, Chen [1 ]
Hu, Bo [1 ]
Zhang, Jianqiu [1 ]
Xu, Kailiang [1 ,2 ]
Ta, Dean [1 ,2 ]
机构：
[1] Fudan Univ, Dept Elect Engn, Shanghai, Peoples R China
[2] Zhuhai Fudan Innovat Inst, Zhuhai, Guangdong, Peoples R China
来源：
2019 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2019年
基金：
上海市自然科学基金;
关键词：
Ultrasonic guided waves; Skull; Free plate mode; Dispersion curves; CORTICAL BONE; TRANSMISSION; ATTENUATION;
D O I：
10.1109/ultsym.2019.8926171
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ultrasonic guided waves have been used to assess the quality of long cortical bone. Skull as a shell-structure, it may also support ultrasonic guided waves propagation. In this study, we used a free plate model to analyze the guided waves propagation in skull phantom and identified the guided modes. Simulation was performed using finite-difference time-domain (FDTD) method and the experiment was carried out on a 3D printed skull phantom and a plate phantom. The experimental dispersion trajectories were obtained using two-dimensional Fourier transform (2D-FT). No significant difference can be found between the results obtained from the plate and the skull phantoms, which illustrated that the Lamb theory used in long cortical bone could also be a proper model for analyzing guided modes in human skull.
引用
收藏
页码：2031 / 2033
页数：3
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