3.4 Materials

The area under a force-extension (or compression) graph gives the work done. This is transferred to elastic potential energy within the material. Elastic potential energy is given by: Tensile stress is defined as the force applied per unit cross sectional area of the...

A pair of equal and opposite forces is required to alter the shape of an object. Forces that produce an extension (tensile deformation) are called tensile forces and forces that shorten an object (compressive deformation) are called compressive forces.  Hooke’s Law...