Open AccessThe distortion of crystals of aluminium under compression.—Part I
Publication year - 1926
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1926.0080
Subject(s) - slipping , shearing (physics) , distortion (music) , aluminium , diad , materials science , shear (geology) , crystallography , composite material , geometry , structural engineering , mathematics , engineering , chemistry , amplifier , optoelectronics , cmos , copolymer , polymer
In previous experiments on the distortion of aluminium crystals a uniform bar was cut from a single crystal and subjected to a tension along its length. This form of test ensures a uniform stress in the central part of the bar, and it was found that the distortion was uniform, and that it conformed to very simple laws. These laws may be summarised as follows:— (а ) The distortion is due to slipping, or shearing, parallel to one octahedral (111), plane in the direction of a diad axis (110). (b ) Of the twelve crystallographically similar possible types of slipping, in general only one occurs, namely, the one for which the component of shear stress in the direction of shear is the greatest.