2nd October 2019


What is elastic neutral axis?

The neutral axis is an axis in the cross section of a beam (a member resisting bending) or shaft along which there are no longitudinal stresses or strains. If the section is symmetric, isotropic and is not curved before a bend occurs, then the neutral axis is at the geometric centroid.

Then, what is meant by plastic moment?

In structural engineering, the plastic moment (Mp) is a property of a structural section. It is defined as the moment at which the entire cross section has reached its yield stress. In practice most materials are work-hardened resulting in increased stiffness and moment resistance until the material fails.

What is the plastic bending?

Plastic bending is a nonlinear behavior particular to members made of ductile materials that frequently achieve. much greater ultimate bending strength than indicated by a linear elastic bending analysis.
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