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1. |
A pin-ended column of length L, modulus of elasticity E and second moment ofthe cross-sectional area I is loaded centrically by a compressive load P. The critical buckling load (Pcr) is given by |
A. | \({P_{cr}} = \frac{{EI}}{{{\pi ^2}{L^2}}}\) |
B. | \({P_{cr}} = \frac{{{\pi ^2}EI}}{{3{L^2}}}\) |
C. | \({P_{cr}} = \frac{{{\pi }EI}}{{{L^2}}}\) |
D. | \({P_{cr}} = \frac{{{\pi ^2}EI}}{{{L^2}}}\) |
Answer» E. | |