Application of Simple Stresses

Abstract

Introduction. Certain components are so loaded that the stresses to which they are subjected fall within the category of simple stress. Such stresses may be tensile, compressive or shear and may be caused by direct pulls or thrusts or by bending or twisting. In addition, under these various loads surfaces in contact with each other are subjected to bearing or crushing stresses, and these effects too must be considered both as to the possibility of failure of the metal to withstand the stresses and of the lubricant, should there be one, failing to preserve a protective film between the rubbing surfaces. Shear resulting from twisting or torsion is dealt with in Chapter IX, but the other forms of stress mentioned above are the concern of this chapter and are illustrated by designs whose loads are restricted as far as possible to the kinds producing such stresses.