Question

Steel bar A of 5 mm diameter is subject to a stress of 500 MPa. Aluminum bar B of 10 mm diameter is subject to a stress of 150 MPa. Is A or B bearing a higher load

Answer 1

Answer:

aluminum bar carrying a higher load than steel bar

Explanation:

Given data;

steel abr

diameter = 5 mm

stress = 500 MPa

aluminium bar

diameter = 10 mm

stress = 150 MPa

we know

stress = laod/area

for steel bar

$500 = \frac{P}{\frac{\pi}{4} 5^2}$

solving for P

P = 9817.47 N

for Aluminium bar

$150 = \frac{P}{\frac{\pi}{4} 10^2}$

solving for P

P = 11790 N

aluminum bar carrying a higher load than steel bar