Application of linearised inverse ultrasonic scattering methods for estimating flaw dimension - 文章详情页

作者：

Zheng, Gangfeng (Zheng, Gangfeng.) | Wu, Bin (Wu, Bin.) | He, Cunfu (He, Cunfu.) (学者：何存富)

收录：

EI Scopus

摘要：

Linearised　inverse　ultrasonic　scattering　methods　based　on　the　Born　and　Kirchhoff　approximations　are　utilised　for　flaw　reconstruction　in　an　elastic　material.　The　flaw　shape　can　be　reconstructed　through　the　FFT　of　the　scattering　amplitudes　in　K-space.　Theoretical　backscattered　waveforms　are　calculated　for　cubic　defects　of　different　sizes,　using　the　software　Ansys　9.0.　Inverse　scattering　methods　are　then　used　to　reconstruct　the　defect　shapes.　From　the　results　of　this　reconstruction,　it　can　be　said　that　the　linearised　inverse　scattering　methods　are　effective　means　of　shape　reconstruction　and,　for　our　application,　they　can　reconstruct　a　defect　that　has　a　minimal　characteristic　size　of　2　mm.

关键词：

Born approximation Defect structures Elasticity Linearization Ultrasonic scattering Ultrasonic testing

作者机构：

[ 1 ] [Zheng, Gangfeng]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Zheng, Gangfeng]Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
[ 3 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China
[ 4 ] [He, Cunfu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

电子邮件地址：

gfzheng@emails.bjut.edu.cn

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