College of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Daxuecheng Donglu 20, Chongqing 401331, PR China.
College of Aerospace Engineering, Chongqing University, Chongqing 400044, PR China; Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
Ultrasonics. 2014 Sep;54(7):2015-23. doi: 10.1016/j.ultras.2014.05.011. Epub 2014 May 23.
Lamb wave tomography (LWT) is a potential and efficient technique for non-destructive tomographic reconstruction of damage images in structural components or materials. A two-stage inverse algorithm proposed by the authors for quickly reconstructing the damage images was applied to hollow cylinders. An aluminum hollow cylinder with an internal surface pit and a Carbon Fiber Reinforced Plastic (CFRP) laminated hollow cylinder with an artificial internal surface damage were used to validate the proposed method. The results show that the present method is capable of successfully reconstructing the images of the above damages in a larger inspection area with much less experimental data compared to some conventional ultrasonic tomography techniques.
兰姆波层析成像（LWT）是一种用于对结构部件或材料中的损伤图像进行非破坏性层析重建的潜在高效技术。作者提出的一种两阶段反演算法，用于快速重建损伤图像，已应用于空心圆柱。采用带有内部表面凹坑的铝制空心圆柱和带有人工内部表面损伤的碳纤维增强塑料（CFRP）层压空心圆柱对所提出的方法进行了验证。结果表明，与某些常规超声层析成像技术相比，该方法在使用更少的实验数据的情况下，能够成功地重建更大检测区域内的上述损伤图像。
