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The two-dimensional problem of the theory of elasticity for compound plane consisting of two half-plane is considered with different elastic characteristic and existing between them finite cracks or semi-infinite cracks. Due to Fourier integral in bipolar system of coordinates the problem are solved closed with the help of PapkovichNeiber function. [ABSTRACT FROM AUTHOR]

The dynamic contact problem of the propagation of plane elastic waves incident from infinity onto the boundary of an elastic half-plane reinforced by an infinite plate of small thickness is studied. Questions related to the dynamic mutual influence of an elastic half-plane with an stringer attached to its boundary are studied. As a physical model for the stringer, a one-dimensional elastic continuum model is taken. The solution of the problem is constructed by direct application of the Fourier transform. Analytical expressions are obtained that represent the distribution of wave components in all parts of the half-plane. [ABSTRACT FROM AUTHOR]