At the proportional limit, a 32-mm-thick by 87-mm-wide bar elongates 10.2 mm under an axial load of 532 kN. The bar is 2.4 m long. Poisson%u2019s ratio, , for the material is 0.27.
Determine a) the proportional limit stress,
b) the modulus of elasticity, and
c) the change in each lateral dimension (i.e., the change in the thickness and width dimensions).