engineering recuitment TSPSC AEE Civil Mock Test 2022 Strength of Materials Simple Stress and Strain Axial Elongation of Bar
What will be the modulus of Elasticity (E) of equivalent bar with area (A) which has same elongation and length of compound bar ? Compound bar elasticity are E1, E2 and area A1, A2.
1
\(\rm \frac{A_1^2E_1\;+\;A_2^2E_2}{A^2_{eq}} \)
2
\(\rm \frac{A_1E_1\;\times\; A_2E_2}{(A_1E_1\;+\;A_2E_2)A_{eq}}\)
3
\(\rm \frac{A_1E_1\;+\;A_2E_2}{A_{eq}} \)
4
\(\rm \frac{E_1^2\;+\;E_2^2}{E_{eq}}\)