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GATE Civil Engineering 2018 Paper 1

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Question : 39

Total: 65

A plate in equilibrium is subjected to uniform stresses along its edges with magnitude σxx = 30 MPa and σyy = 50 MPa as shown in the figure.

The Young’s modulus of the material is 2×1011N∕m2 and the Poisson’s ratio is 0.3. If σzz is negligibly small and assumed to be zero, then the strain εzz is

−120×10−6
−60×10−6
0.0
120×10−6

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