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Practical Applications:

Evaluation of Extreme Stresses

We have already seen that the bending stress at a point is directly proportional to its distance from the neutral axis. If the stresses are plotted for several distances, we obtain a stress distribution diagram as illustrated in Figure. The maximum tensile or compressive stress takes place at the outermost layer.

If we give the maximum value for y in the bending stress expression given in Equation (1).

σ =  (M/ I) × y                                    ------------- (1)

We obtain the maximum stress. This may easily be understood from the following examples.

Design for Bending Determine the maximum uniformly distributed load
Evaluation of Load Bearing Capacity Example of Evaluation of Extreme Stresses
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