First slide

Stress and strain

Question

A 2 m long rod of radius I cm which is fixed from one end is given a twist of 0.8 radians. The shear strain developed will be

Moderate

A

0.002
B

0.004
C

0.008
D

0.016

Solution

$rθ = Lϕ \Rightarrow 10^{- 2} \times 0.8 = 2 \times ϕ \Rightarrow ϕ = 0.004$

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