ABSTRACT
This chapter discusses the statement of the flexure formula and apply it properly to compute the maximum stress due to bending at the outer fibers of the beam. It examines the stress at any point within the cross section of the beam and describes the variation of stress with position in the beam. The chapter aims to understand the conditions on the use of the flexure formula. It provides the flexural center and describes its proper use in the analysis of stress due to bending. The chapter also aims to understand the derivation of the flexure formula and the effect of the moment of inertia on bending stress. Beams must be designed to be safe. When loads are applied perpendicular to the long axis of a beam, bending moments are developed inside the beam, causing it to bend.
