Crack Detection Using Spherical Incident Waves And Near-field Measurements
Price
Free (open access)
Transaction
Volume
25
Pages
10
Published
1999
Size
853 kb
Paper DOI
10.2495/BE990321
Copyright
WIT Press
Author(s)
C.J.S. Alves & P.M.C. Ribeiro
Abstract
In this text we present criteria for determining the location of a plane crack and an associated numerical method. We use spherical incident waves and measure the scattered field on some specified set of points. The numerical method for the plane crack identification uses a boundary finite element method for the computation of the direct problem. The behaviour of these numerical methods is analysed in several cases and simulations are presented. 1 Introduction Crack detection is a problem in non-destructive testing of materials which has been often addressed in the literature. This work can be viewed as a continuation and a co
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