title: Tomographic reconstruction of damage images in hollow cylinders using Lamb waves.
abstract: 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.
authors.affiliation: College of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Daxuecheng Donglu 20, Chongqing 401331, PR China.
authors.forename: Bin
authors.initials: B
authors.lastname: Hu
authors.affiliation: 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. Electronic address: huning@faculty.chiba-u.jp.
authors.forename: Ning
authors.initials: N
authors.lastname: Hu
authors.affiliation: College of Aerospace Engineering, Chongqing University, Chongqing 400044, PR China.
authors.forename: Leilei
authors.initials: L
authors.lastname: Li
authors.affiliation: College of Aerospace Engineering, Chongqing University, Chongqing 400044, PR China.
authors.forename: Weiguo
authors.initials: W
authors.lastname: Li
authors.affiliation: College of Aerospace Engineering, Chongqing University, Chongqing 400044, PR China.
authors.forename: Shan
authors.initials: S
authors.lastname: Tang
authors.affiliation: Department of Nanomechanics, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.affiliation: College of Aerospace Engineering, Chongqing University, Chongqing 400044, PR China.
authors.forename: Xianghe
authors.initials: X
authors.lastname: Peng
authors.affiliation: Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Homma
authors.affiliation: Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Yaolu
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Liangke
authors.initials: L
authors.lastname: Wu
authors.affiliation: Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Huiming
authors.initials: H
authors.lastname: Ning
keywords: Attenuation; Damage image; Inverse algorithm; Lamb wave tomography