Poisson's Ratio for Tetragonal Crystals.
Abstract
General expressions for Poisson's ratio are derived for tetragonal crystals; simplified forms are given for cases involving symmetry directions. Poisson's ratio, v, is defined for isotropic media as the quotient of lateral contraction to longitudinal extension arising from application of a simple tensile stress; in most materials, this dimensionless number is positive. In crystals, v takes on different values, depending on the directions of stress and strain chosen. The ratio finds application in a variety of areas of applied elasticity and solid mechanics, for example, as indication of the mechanical coupling between various vibrational modes of motion. jg
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1995
- Accession Number
- ADA293544
Entities
People
- Arthur Ballato
Organizations
- United States Army Research Laboratory