Stress Lines and Stream Lines

Abstract

THE general conditions of stress at any point in a loaded body have been reduced to certain mathematical equations, but there is considerable difficulty in applying these equations to any but the simplest cases. Experimental methods, therefore, are welcome, though they may give only approximations to correctness. One such method consists in deducing the stresses from the distortions produced by the load. The application of this method is frequently, very difficult, but it has been simplified by the discovery and study of the phenomenon known as Lüders' lines.