Engineering Board Exam Reviewer · Strength of Materials · hard
A simply supported beam of span 5 m (EI = 20000 kN· m2) carries a uniformly distributed load of 20 kN/m over its entire length. What is the maximum deflection, in mm?
- 78.13
- 1.63
- 8.14
- 13.02
Answer
C. 8.14
Solution
For a full-span uniform load, max = 5wL4/(384EI) = 5(20)(5)4/(384 × 20000) = 0.00814 m = 8.14 mm.
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