The characterization of guided waves on hollow cylinder from non-axisymmetric end loading - Details

Author：

Li, Longtao (Li, Longtao.) | He, Cunfu (He, Cunfu.) (Scholars：何存富) | Wu, Bin (Wu, Bin.) | Li, Ying (Li, Ying.) | Wang, Xiuyan (Wang, Xiuyan.)

Indexed by：

EI Scopus

Abstract：

Ultrasonic　guided　waves　are　used　for　the　rapid　testing　of　a　steel　pipe　(O.D　70　mm,　I.D　63　mm,　2544　mm　long).　The　non-axisymmetric　transducer　ring　(arc)　is　put　on　one　end　of　the　pipe　to　excite　and　receive　the　guided　wave　in　the　pipe.　An　artificial　hole　of　1　mm　diameter　can　not　be　found　by　conventional　axisymmetric　end　loading　transducer.　However,　the　non-axisymmetric　transducer　ring　(arc),　compared　with　the　axisymmetric　transducer　ring,　is　very　sensitive　to　the　artificial　hole　when　The　middle　point　(MP)　of　the　transducer　arcs　coincided　with　the　center　of　the　artificial　hole　on　the　cross　section　of　the　pipe.　The　results　show　that　the　non-　axisymmetric　end　loading　technology　can　locate　the　crack　or　defect　on　the　pipe　not　only　in　the　axial　direction　but　also　in　the　circumferential　direction.　Copyright　©　2005　by　ASME.

Keyword：

Steel pipe Cylinders (shapes) Characterization Transducers Guided electromagnetic wave propagation Ultrasonic waves Cracks Waveguides

Author Community：

[ 1 ] [Li, Longtao]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100022
[ 2 ] [He, Cunfu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100022
[ 3 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing
[ 4 ] [Li, Ying]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing
[ 5 ] [Wang, Xiuyan]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing