Abstract
This investigation treats the half-plane with a boundary load using a combined theoretical and experimental analysis. The theoretical approach considers an isotropic, perfectly elastic, semi-infinite plate with a concentrated normal load on the boundary. The experimental model consisted of a large sheet of columbia resin CR-39 loaded with a charge of lead azide in a semi-cylindrical pit on the edge of the plate. Results for the boundary stress from the theoretical and dynamic photoelastic analyses were compared. The comparison showed agreement for effects due to the P wave and marked but explainable differences in the theoretical and experimental results associated with the S and R waves. It appears that a better correlation between loading functions for the experimental and mathematical models is required in order to improve agreement.
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