Question: 3 - A solid steel bar has a square cross section of side b and is supported as shown. Taking L 1 = L 2

3- A solid steel bar has a square cross section of side b and is supported as shown. Taking L1=L2=L3=1.4m and knowing that for steel =7860kgm3, determine the dimension b for which the maximum normal stress due to bending is 10 MPa . Answer: 45.3 mm
3 - A solid steel bar has a square cross section

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