Engineering Board Exam Reviewer · Strength of Materials · medium
A cantilever beam 4 m long (EI = 20000 kN· m2) carries a concentrated load of 15 kN at its free end. What is the deflection at the free end, in mm?
- 1
- 6
- 48
- 16
Answer
D. 16
Solution
For a cantilever with an end load, = PL3/(3EI) = (15)(4)3/(3 × 20000) = 0.016 m = 16 mm.
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