Max Moment in a Cantilever Beam
Easycantileverbending momentbeam analysis
A cantilever beam is 3 m long and fixed at its left end. A downward point load of 10 kN acts at the free end. Neglect beam self-weight. What is the magnitude of the maximum bending moment in the beam?
- A10 kN·m
- B15 kN·m
- C30 kN·m
- D45 kN·m
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Answer: C. 30 kN·m
For a cantilever with an end load, the bending moment is largest at the fixed support: M = P × L = 10 kN × 3 m = 30 kN·m. The moment drops linearly to zero at the free end.
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