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Unformatted text preview: a single bolt of diameter 7 mm. The bracket is loaded by vertical force F = 120 N. Find the tensile stress in the bolt. F 25 32 10 all dimensions in mm Figure 3 4. A certain steel has a density of 7700 kg/m 3 and fails in uniaxial tension at a stress σ = 120 MPa. A 20 mm diameter cable made of this material is used to lower a cage of mass 1000 kg down a mine shaft from a winch at ground level. How far can the cage be lowered before the cable fails? 2 5. In Figure 5, the bar AC is a solid steel cylinder of diameter 20 mm. A block of weight W = 1200 N is attached at D . Find the stress in the member AC and indicate whether it is tensile or compressive A B C D W 1.5 2.5 3 all dimensions in meters Figure 5 3...
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- Fall '07