Q1. The strain rosette (see figure) shows the following readings when subjected to a load. \\ $\epsilon_A = 80 \times 10^{-6}$, $\epsilon_B = 160 \times 10^{-6}$, and $\epsilon_C = 240 \times 10^{-6}$. \\ Calculate the in-plane strains, $\epsilon_x$, $\epsilon_y$ and $\gamma_{xy}$ (Total 12 = 9 + 3)
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Sri K.
The $60^{\circ}$ strain rosette is mounted on a beam. The following readings are obtained from each gauge: $\epsilon_{a}=250\left(10^{-6}\right), \epsilon_{b}=-400\left(10^{-6}\right), \epsilon_{c}=280\left(10^{-6}\right) .$ Determine (a) the in-plane principal strains and their orientation, and (b) the maximum in-plane shear strain and average normal strain. In each case show the deformed element due to these strains.
The $60^{\circ}$ strain rosette is mounted on a beam. The following readings are obtained for each gauge: $\epsilon_{a}=600\left(10^{-6}\right), \quad \epsilon_{b}=-700\left(10^{-6}\right), \quad$ and $\quad \epsilon_{c}=350\left(10^{-6}\right)$. Determine (a) the in-plane principal strains and (b) the maximum in-plane shear strain and average normal strain. In each case show the deformed element due to these strains.
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