First slide

Elastic Modulie

Question

If Poisson's ratio of a material is 0.4, the ratio of its young's modulus to Bulk modulus of elasticity is

Moderate

A

2 : 5
B

5 : 4
C

3 : 5
D

2 : 3

Solution

$Y = 3 K (1 - 2 σ) = 3 K (1 - 2 \times 0.4) = 0.6 K$
$∴ Y : K = 3 : 5$

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