Laser ultrasonics is a technique where lasers are employed to generate and detect
ultrasound. A data collection method (full matrix capture) and a post processing imaging …

Composite primary structures that can sustain high loads are used to reduce the weight of
structures in various industries. Composite primary structures that are L-shaped or T-shaped …

Zero-group velocity (ZGV) Lamb modes are associated with sharp local acoustic resonances
and allow, among other features, local measurement of Poisson's ratio. While the …

The analytical theory for the directivity patterns of ultrasounds emitted from laser-irradiated
interface between two isotropic solids is developed. It is valid for arbitrary combinations of …

The effect of asymmetry caused by oblique line-shaped laser ablation on the generation of
ultrasonic waves in metal, especially the effect of transverse component of the ablation force …

The symmetry of a thermoelastic source resulting from laser absorption can be broken when
the direction of light propagation in an elastic half-space is inclined relatively to the surface …

Laser-generated elastic waves have been the subject of numerous experimental,
theoretical, and numerical studies to describe the opto-acoustic generation process …

Laser generated ultrasound in ablation regime provides a large enhancement of
longitudinal mode signal which is useful to investigate defects and monitor thickness of …

To improve the focused ultrasonic beam induced by laser phased array (LPA), the
superiority of an improved LPA distribution with conjunction of geometric attenuation and …

To verify the performance of longitudinal waves induced by laser phased arrays (LPA) for
detection and quantitative evaluation in internal defects, the finite element method (FEM) is …