Realistic impulsive P wave source in an infinite elastic medium

"The generally assumed instantaneous impulsive pressure sources for an elastic P wave in an infinite medium lead to basic contradictions, a step function source yielding infinite displacements as the shear modulus goes to zero, and the total energy radiated by a delta function (or any derivative of the delta function) source being infinite. By noting that the character of the solution in the elastic region must match the acoustic case near the source, a realistic impulsive pressure source is postulated which has a finite time history. The elastic field produced by this source is then obtained in closed form. A number of numerical examples are considered"--Abstract, Page ii.

Name thesis:degree_name

Ph. D. in Physics

Grantor

University of Missouri--Rolla

Year dc:date.available

2016

Author dc:creator

• Hemmann, Joseph Hugo

• Physics

Repository record dc:identifier

https://scholarsmine.mst.edu/doctoral_dissertations/2246

OAI identifier oai:identifier

oai:scholarsmine.mst.edu:doctoral_dissertations-3248