An arbitrarily small defect of phase change in density and change in moduli can nucleate and grow at constant potential energy under high pressure at a critical loading. The self-similarly expanding ellipsoid possesses the "lacuna" property: the particle velocity vanishing in the interior domain. We derive the flow of energies across the moving phase boundary of this type of inclusion. The solution explains the generation of a shear seismic source radiation in deep-focus earthquakes under "volume-collapse"; also the generation of failure waves (producing a zone with micro-fractures under compression in lima glass), and has wider applications to amorphization defects, defects in alloys, planetary impact, etc.
The seminar will be held on Thursday, May 21st from 3 to 4pm in Aula Caminetto (Santa Marta)
Speaker: Prof. Xanthippi Markenscoff - Dept. of Mechanical and Aerospace Engineering, University of California - San Diego La Jolla