Abstract:
:The Lamb waves are used for the ultrasonic characterization of welds because of their relative long-range propagation. In this paper, a simplified model of a weld-strip between two identical semi-infinite elastic layers is investigated. The reflected and transmitted ultrasonic fields are expressed by modal series whose coefficients are obtained by application of orthogonality relation. Comparisons with solutions obtained by finite elements wave propagation simulations are made. The energy balance between the incident and the scattered waves is also used to verify the accuracy of the obtained modal amplitudes.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Predoi MV,Rousseau Mdoi
10.1016/j.ultras.2004.11.004subject
Has Abstractpub_date
2005-06-01 00:00:00pages
551-9issue
7eissn
0041-624Xissn
1874-9968pii
S0041-624X(04)00308-7journal_volume
43pub_type
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