A wave splitting approach to thermoelastic pulses in anisotropic media

✍ Scribed by Maurizio Romeo

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 174 KB
• Volume: 32
• Category: Article
• ISSN: 0165-2125
• DOI: 10.1016/s0165-2125(00)00048-2

✦ Synopsis

Transient wave propagation is considered in a thermoelastic anisotropic medium modelled by means of linear constitutive functionals. The wave splitting technique is exploited to solve a boundary value problem for mechanical and thermal fields. Analytical solutions are derived for the physical setting of crystals at low temperatures. It is found that thermoelastic transient waves amount to the superposition of a fast component which propagates with a speed close to that of sound and a slow component which is identified as the second sound. Purely thermal and purely mechanical boundary pulses are chosen as examples to illustrate the results.