  In this paper, we present a comprehensive investigation of stress propagation
in a two-dimensional elastic circular disk. To accurately describe the
displacements and stress fields within the disk, we employ a scalar and vector
potential approach, representing them as sums of Bessel functions. The
determination of the coefficients for these expansions is accomplished in the
Laplace space, where we compare the boundary conditions. By converting the
inverse Laplace transforms into complex integrals using residue calculus, we
successfully derive explicit expressions for the displacements and stress
fields. Notably, these expressions encompass primary, secondary, and surface
waves, providing a thorough characterization of the stress propagation
phenomena within the disk. Our findings contribute to the understanding of
mechanical behavior in disk-shaped components and can be valuable in the design
and optimization of such structures across various engineering disciplines.
