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2 cards from this section. Quick, good the night before a test.
What is beam deflection?
Think about how a trampoline bends under weight.
What does the modulus of elasticity indicate?
High E means less bending.
What is the formula for calculating deflection at mid-span?
Recall the context of mid-span deflection.
True or False: An increase in modulus of elasticity will always decrease beam deflection.
Think about why stiffer materials bend less.
A beam has a span of 3 m with a distributed load of 8 kN/m and E = 150 GPa, I = 200×10^6 mm⁴. Calculate the deflection.
Remember to switch to consistent units.
Explain how an increase in moment of inertia would qualitatively affect deflection in real applications.
Think about how beams resist bending.
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