Who cares what it looks like.Īnother example worked out in metric with the addition of a hinge. From 5L/8 to L, we know the moment must decrease non-linearly (2nd power).To find the Maximum moment, add the shear force at L/2 to the area of the shear triangle from L/2 to the location of zero shear (5L/8) discovered from the third bullet. The point of inflection of the the moment diagram (slope = 0 = flat) is where the shear force = 0.it increases linearly from 0 to L/2 with a maximum value equivalent to the area of the shear diagram. Just like the evenly distributed load affected the right side of the shear/moment diagram, we can use the same concept on the moment diagram.
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