SLOWNESS SURFACES AND ENERGY FOCUSING PATTERNS OF AUXETIC CUBIC MEDIA

Abstract

We study properties of slowness surfaces and energy focusing patterns of cubic elastic media. We restricted ourselves to the region of the stability triangle where Poisson's ratio P of the specimen stretched in the [001] direction and measured for [100] is negative, i.e. we consider all cubic auxetic materials. We study properties of surfaces and energy focusing patterns for all elastic auxetic media characterized by P = -1/3.