engineering recuitment KPSC JE Civil Mock Test 2020 Strength of Materials Simple Stress and Strain Stress and Strain
A composite bar is made of steel and aluminium strips, with Aa = 3As, where Aa and As are areas of cross-section of aluminium and steel bars, respectively Es/Ea = 3. Due to an external load, if the stress developed in the aluminium is 30 MPa, then what is the stress developed in the steel bar?
1
10 MPa
2
30 MPa
3
90 MPa
4
None of these