XXI. Elements of a mathematical theory of elasticity

Abstract

Def . A Stress is an equilibrating application of force to a body. Cor . The stress on any part of a body in equilibrium will thus signify the force which it experiences from the matter touching that part all round, whether entirely homogeneous with itself or only so across a portion of its bounding surface. Def . A strain is any definite alteration of form or dimensions experienced by a solid.