We designed and characterized a 3D printed acoustic shear wave polarization rotator (PR) based on the specific nature of fused-deposition-modeling printing process. The principle PR is rotation axis due to gradual change in orientation anisotropy along direction propagation layered structure. component modulus parallel infilled lines within each layer significantly higher than that perpendicula...

Classical dynamic fracture theories predict the surface wave speed to be the limiting speed for propagation of in-plane cracks in homogeneous, linear elastic materials subjected to remote loading. This report presents experimental evidence to the contrary. Intersonic shear-dominated crack growth featuring shear shock waves was observed along weak planes in a brittle polyester resin under far-fi...

Dispersion of Love waves is studied in a self-reinforced layer lying over an elastic non-homogeneous half space. The wave velocity equation is found to be in perfect agreement with the corresponding classical result when the anisotropic elastic parameters tend to zero. Dispersion curves for the shear wave velocity ratio and the effect of anisotropy and heterogeneity have been shown graphically....

Shear Alfvén waves with transverse scales of electron skin-depth size are launched with a dual-disk antenna in the Large Plasma Device at UCLA. The waves are studied in the kinetic and inertial regimes. The kinetic shear Alfvén wave is observed for the first time and exhibits predicted radial structure. The perpendicular propagation of the wave is also studied for the first time, and it is foun...

Influence of externally forced initial flow conditions on axisymmetric cavity shear layer were studied. A sinusoidally heated strip upstream of the cavity excited Tollmien-Schlichting waves which, after amplification by the boundary layer, were introduced to the cavity shear layer. By choosing forcing frequencies within the range of shear layer receptivity, it was possible to control frequency ...