CRACK PROPAGATION IN CAST IRON AND MILD STEEL SHEET

Abstract

All the ordinary mathematical formulas for determining stresses in structural and machine members are based on the assumption that there is continuity of elastic action throughout the members and hence that the distribution of stress on any sect_on of a member can be expressed by a mathematical model, usually of relatively simple form. For example, in a tension member subjected to an axial load the stress is assumed to be dis-trihuter' uniformly over e'ch cross section; in a beam the stress on each cross section is assumed to increase directly with the distance from the neutral axis.....