Diffraction of elastic waves by edges

Diffraction of Vector Elastic Waves by a Finite Crack.

Communicated June 30, 1964 The problem of the diffraction of obliquely incident scalar waves by finite slits and strips with various boundary conditions has been considered previously.' Reference may be made to the work of other authors on the diffraction of scalar waves by finite slits.2 The problem of the diffraction of obliquely incident vector elastic waves by a clamped finite strip has als...

Scattering of plane elastic waves by three-dimensional diffraction gratings

Diffraction of Scalar Elastic Waves by a Finite Crack.

arc, with two end-plates energized by a common negative voltage referred to the central arc. Note that these are actually experimental results for a real central uranium arc, operating at about 50 volts, for more than 100 tests, at total arc currents of 1-100 amperes. The floating cylinder was about 4 feet in diameter, and the negatively energized circular end-plates were separated by about 3 f...

Diffraction by edges

In these expository notes we explain the role of geometric optics in wave propagation on domains or manifolds with corners or edges. Both the propagation of singularities, which describes where solutions of the wave equation may be singular, and the diffractive improvement under non-focusing hypotheses, which states that in certain places the diffracted wave is more regular than a priori expect...

Rayleigh–Bloch waves along elastic diffraction gratings

Rayleigh-Bloch (RB) waves in elasticity, in contrast to those in scalar wave systems, appear to have had little attention. Despite the importance of RB waves in applications, their connections to trapped modes and the ubiquitous nature of diffraction gratings, there has been no investigation of whether such waves occur within elastic diffraction gratings for the in-plane vector elastic system. ...