Oblique Structures Developed in Homogeneous Anisotropic Material

Abstract

<p> Layers of plasticene lubricated with talcum powder were compressed in directions perpendicular to the layering. Normal kink bands oblique to the principal compression direction were produced. These structures were predicted by Cosgrove (1972) after a theory developed by Biot (1965). Other multilayers, with the layering oblique to the principal compression direction, were compressed and these developed instabilities also. </p> <p> The normal kink bands were analysed geometrically. It was found that variation in layer thickness provided the best description and also provided a statement of the state of strain of the final deformation. </p>