P 1 cm P 20 cm 8 cm 10 cm 77 TIIT (a) ( (b) Fig. 3 a) Fig. 3 (a) and (b) show short and long beams subjected to compress

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P 1 Cm P 20 Cm 8 Cm 10 Cm 77 Tiit A B Fig 3 A Fig 3 A And B Show Short And Long Beams Subjected To Compress 1 (55.32 KiB) Viewed 47 times

P 1 cm P 20 cm 8 cm 10 cm 77 TIIT (a) ( (b) Fig. 3 a) Fig. 3 (a) and (b) show short and long beams subjected to compressive loadings. The cross section of beam is circle. The beams are not perfectly straight up. Explain how two beams resist to the loads. Sketch the deformation and stress states for both beams. (9 points) A column of length / with pinned ends is loaded compressively. The yield strength Sy of the beam is 689 MPa and Young's modulus is E=203 GPa. b) Calculate the length of beam until the Johnson's equation is good (valid) to predict the buckling of this beam. The diameter of column is 0.01 m. (8 points) c) Predict the maximum load for a column with 1 m long and 0.05 m in diameter when a safety factor is 3. (8 points)