chicken-or-egg question of Youngs Modulus

What lecturers should tell students about the e-module

Abstract

For a design engineer, the modulus of elasticity is an important, largely constant parameter. Using the formulas of engineering mechanics, the component design can be determined in such a way that a defined load does not lead to deformation or component failure. Unlike in metals, the modulus of elasticity is not constant in plastics. A characteristic function must be applied for the design; where necessary, a new test method must also be used.