Determine the total compression of a bar made up of three circular cross-sections as shown in figure. The diameter being 10mm, 20mm and 30mm of the top, middle and the bottom portions respectively. Take ES = 210 GPa, EB = 105 GPa, EC = 100 GPa.
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Determine the length of a central bore of 25 mm diameter to be made in a steel tie rod of 50 mm diameter and 2.5 m long when it is subjected to a pull of 100 kN so that its extension is increase by 15% of that without the bore. Take E = 200 GPa.
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Determine the force P necessary for the equilibrium of a steel bar as hown in the figure. The diameters of the first, middle, and the last segments of e bar are 30mm, 25mm, and 30mm respectively. E=200GPa.
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