The

**bending stiffness**( ) is the resistance of a member against**bending**deformation. It is a function of elastic modulus , the area moment of inertia of the beam cross-section about the axis of interest, length of the beam and beam boundary condition.Similarly, what is simple bending theory?

**Simple**beam

**bending**is often analyzed with the Euler–Bernoulli beam equation. The conditions for using

**simple bending theory**are: The beam is subject to pure

**bending**. This means that the shear force is zero, and that no torsional or axial loads are present. The material is isotropic (or orthotropic) and homogeneous.

What is deflection of a beam?

In engineering,

**deflection**is the degree to which a structural element is displaced under a load. It may refer to an angle or a distance. The**beams**used for frame work are selected on the basis of**deflection**, amongst other factors.What is Y in the bending equation?

Simplifying and rearranging gives, This

**equation**gives the**bending**normal stress, and is also commonly called the flexure**formula**. The**y**term is the distance from the neutral axis (up is positive). The I term is the moment of inertia about the neutral axis.