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Bending moment is the same throughout the beam.
To obtain uniform strength.
Usually this indicates an error or a misunderstanding. A single beam cannot be of uniform length.
A beam with a uniform cross-section.
zero stress
you will need that to calculate the strength and deflection of the beam, and also strength of the support itself
The moment of a beam is twice that for central load vs uniform load for a simple support beam; hence it needs twice the section modulus for sizing; for fixed ends the moment is 50% higher for central load vs uniform load
the part of beam which has maximum section modulus should take more load for more strength.
2,345 wats
Reinforcement is anything that provide additional strength to a beam. In a standard beam reinforcement refers to steel bars.
If you load a beam in tension or compression only ( pull or push) then you multiply the tensile yield or ultimate strength by the area of the beam cross section. Thus applies to a simple beam (bar) only. If you load the beam any other way, such as bending or twisting, or perpendicular to its axis you need to use formulas from an engineering strength of materials course or handbook.
"Very funny Scotty! Now beam me down my uniform."