1-16.  A rod has a length of L = 250 mm and a diameter of d = 17 mm. And axial load  is applied to the rod. Determine the distributions of the change in length and the change in diameter given E = 2.65 GPa and v = 0.3.

Fig. 1.16

Solution

Find the area of the rod

 m²

Find an equation for the change in length

 mm

 mm

Then

 mm                                       

Find an equation for the change in the diameter

 mm

 mm

Then

 mm