o (psi) - o = 9.5(10³)e!3 e (in. /in.)

Determine the elongation of an aluminium hollow cylinder of an inner diameter of 1.1 cm & the external diameter of 22.7 mm is subjected to an elastic tensile load of 271 kN. Take the elastic modulus of the aluminum specimen as 73 GPa and the initial length of the hollow cylinder as 186 mm. Solution: i) Cross-sectional Area (in mm2) =  ii) Stress-induced (in N/mm2) =  iii) Strain-induced (at least 3 decimal places accuracy)=  iv) Elongation (in mm) =

An aluminium alloy rod of length 1.8m and rectangular cross-sectional of area 250mm^2 is subjected to a compressive load of 45kN. Young's modulus and Poisson's ratio for the material are: E = 71 GPa and v =0.33. Determine the decrease in length and increase in area of the bar.

Determine the stress in each section of the bar shown below, which is subjected to an axial tensile load of (20KN). The central section is 30 mm Square cross -Section; the other portions are of circular section, their diameters being indicated. what will be the total extension of the bar? For the bar material (E = 210 GN/m²). 250 100 400 mm * * ↓ 20KN 20 KN ↓ 20 0 2 30mm 3 115