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2 cards from this section. Quick, good the night before a test.
What happens to the fibers above the neutral plane during bending?
Think about how materials deform under stress.
What is the neutral axis?
Consider where forces counterbalance each other in bending.
What is the purpose of the neutral plane in a bending beam?
Think of which part of the beam doesn't change during bending.
True or False: The stress is compressive above the neutral axis.
Remember how materials respond to bending forces.
A wooden beam of height 200 mm and width 50 mm is subjected to a bending moment of 300 Nm. Calculate the maximum longitudinal stress experienced if the neutral axis is at the centroid.
Don’t forget to find the location y for maximum stress first.
A beam with a bending moment of 150 Nm has a radius of curvature of 0.75 m. If the height of the beam is doubled, discuss the effects on the maximum stress.
Refer to the formula for moment of inertia and how changing dimensions impacts beam strength.
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