A beam is a structural element that is capable of withstanding load primarily by resisting bending. The bending force induced into the material of the beam as a result of the external loads, own weight and external reactions to these loads is called a bending moment.
A loaded beam deflects by an amount that depends on several factors including:
- the magnitude and type of loading
- the span of the beam
- the material properties of the beam (Modulus of Elasticity)
- the properties of the shape of the beam (Moment of Inertia)
- the beam type (simple, cantilever, overhanging, continuous)
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