Solid Mechanics: Plastic Bending example to solution

In order to understand the theory of reinforced concrete beams you would need to study a very wide
range of material well beyond the scope of one part of one outcome of one module. For this reason the
material offered here is greatly simplified.

ELASTIC BENDING

Consider a simple rectangular beam at a point where the bending moment is M.
The neutral axis passes through the centre of area.
The strain is directly proportional to distance y.
Since σ = E ε the stress is also directly proportional to distance y.
Suffix ‘c’ refers to compression and ‘t’ to tension.

Click Plastics Bending for the full reading with example