Ultrasonic Wave Propagation in Non Homogeneous Media

Front Matter....Pages i-x
The WKB method applied to the reflectiontransmission by a depth-varying random distribution of cylinders in a fluid slab-like region....Pages 1-13
Advances in ultrasonic testing of austenitic stainless steel welds. Towards a 3D description of the material including attenuation and optimisation by inversion....Pages 15-24
Imaging of defects within austenitic steel welds using an ultrasonic array....Pages 25-38
Materials and mechanical aspects of bonded joints....Pages 39-47
The causal differential scattering approach to calculating the effective properties of random composite materials with a particle size distribution....Pages 49-59
Modelling of scattering of ultrasounds by flaws for NDT....Pages 61-71
Finite element computation of leaky modes in stratified waveguides....Pages 73-86
Ultrasonic bulk wave propagation in concentrated heterogeneous slurries.....Pages 87-98
Dynamics of elastic bodies connected by a thin adhesive layer....Pages 99-110
Acoustic wave attenuation in a rough-walled waveguide filled with a dissipative fluid....Pages 111-122
Some advances towards a better understanding of wave propagation in civil engineering multiwires trands....Pages 123-135
A numerical method for the simulation of NDT experiments in an elastic waveguide....Pages 137-147
Finite elements for a beam system with nonlinear contact under periodic excitation....Pages 149-159
Nonlinear acoustic fast and slow dynamics of damaged composite materials: correlation with acoustic emission....Pages 161-171
Asymptotic expansions of vibrations with small unilateral contact....Pages 173-182
Propagation of compressional elastic waves through a 1-D medium with contact nonlinearities....Pages 183-194
3D Finite Element simulations of an air-coupled ultrasonic NDT system....Pages 195-206
The reverse time migration technique coupled with finite element methods....Pages 207-216
Modelling of corner echo ultrasonic inspection with bulk and creeping waves....Pages 217-226
Attenuation of Lamb waves in the vicinity of a forbidden band in a phononic crystal....Pages 227-235
3D orthogonality relations for the surface waves and the far field evaluation in viscoelastic layered solids with or without fluid loading....Pages 237-249
Damage detection in foam core sandwich structures using guided waves....Pages 251-260
Sensitivity of the guided waves to the adhesion of lap joints: Finite Element modeling and experimental investigations....Pages 261-270
Guided waves in empty and filled pipes with optimized magnetostrictive transduction....Pages 271-281
Piezoelectric material characterization by acoustic methods....Pages 283-292
Ultrasound characterization of aggregated red blood cells: towards in vivo application....Pages 293-302
A 3D semi-analytical model to predict the behavior of ultrasonic bounded beam traveling in cylindrical solid bar embedded in a solid matrix.....Pages 303-315
Comparison between a multiple scattering method and direct numerical simulations for elastic wave propagation in concrete....Pages 317-327
Investigation of a novel polymer foam material for air coupled ultrasonic transducer applications....Pages 329-340
Dual signal processing approach for Lamb wave analysis....Pages 341-353
Structural health monitoring of bonded composite patches using Lamb waves....Pages 355-363
Simulation of structural noise and attenuation occurring in ultrasonic NDT of polycrystalline materials....Pages 365-375
Ultrasonic array reconstruction methods for the localization and the characterization of defects in complex NDT configurations....Pages 377-385
Investigation of damage mechanisms of composite materials: Multivariable analysis based on temporal and wavelet features extracted from acoustic emission signals....Pages 387-397
Investigation of damage mechanisms of composite materials: Multivariable analysis based on temporal and wavelet features extracted from acoustic emission signals....Pages 399-409
Propagation of elastic waves in a fluid-loaded anisotropic functionally graded waveguide: Application to ultrasound characterization of cortical bone....Pages 411-422
Coherent wave propagation in solids containing spatially varying distributions of finite-size cracks....Pages 423-434
Back Matter....Pages 435-435