STRESS WAVE GENERATION IN A TEMPERATURE-DEPENDENT ABSORBING SOLID BY IMPULSIVE ELECTROMAGNETIC RADIATION.
Abstract
An elastic, partially transparent solid, occupying the half space x > 0, is subjected to uniform impulsive electromagnetic radiation at the surface x = 0. The deposition of radiant energy over a finite absorption depth gives rise to a distributed heat source within the solid (thermal shock) which, in turn, dilatates the medium and generates a stress wave. In this paper the nature of the stress-wave build up in the absorption layer is studied for the case of a temperature-dependent solid, i.e., when material properties vary with temperature. The mathematical problem is one of wave propagation in a non-homogeneous medium. An approximate solution to the posed problem is developed which readily exhibits the influence of temperature. Error bounds are provided. The results are illustrated by a numerical example. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0678531
Entities
People
- F. Tzung
- Gilbert A. Hegemier
Organizations
- University of California, San Diego