Question: For the rectangular element shown determine the strain (varepsilon_{x x}) at the centroid of the element using the isoparametric formulation. The nodal coordinates in the

For the rectangular element shown determine the strain $\varepsilon_{x x}$ at the centroid of the element using the isoparametric formulation. The nodal coordinates in the figure are in meters. The nodal displacements given in the table are also in meters.

Node Number 1234 u (m) v (m) 0120 0120

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Node Number 1234 u (m) v (m) 0120 0120

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