Description of Changes in Crystal Orientations by the Elements of Logarithm of a Rotation Matrix

The logarithm of rotation matrix is a skew symmetric tensor consisting of three independent elements of real numbers. In addition to the Euler angles and the axis/angle pair, the elements of called the log angles are also the set of three parameters of . In this paper, we will show that the concept of the log angles is also useful to discuss changes in crystal orientations. The changes in as a function of the position are given by the changes in the log angles. As an example, orientation changes caused by arrays of dislocations in a plastically deformed Cu single crystal are discussed.

from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2jixtEA
via IFTTT