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A load of 30 kN is applied vertically downward at the free end of a cantilever of span 5 m. If the elastic modulus of the cantilever is 30 GPa and the section has a width of 0.3 m and a depth of 0.6 m, then, the elastic deflection (in mm) is ______
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- 7.65 to 7.75
- 4.65 to 4.75
- 3.65 to 6.75
- 2.65 to 7.75
Correct Option: A
(7.65 to 7.75)
Moment of inertia for rectangular section
| I = | = (0.3 m) × (0.6 m)/12 = 54 × 10-4 m4 | |
| 12 |
| YA = | ||
| 3EI |
| YA = | ||
| [3 × (30) × (54 × 10-4)] |
YA =7.71 mm
