Question p.6.11: A square element 1234, whose corners have coordinates x, y (...
A square element 1234, whose corners have coordinates x, y (in metres) of
(−1, −1), (1, −1), (1, 1), and (−1, 1), respectively, was used in a plane stress finite element analysis. The following nodal displacements (mm) were obtained:
If Young’s modulus E = 200 000 N/mm² and Poisson’s ratio ν = 0.3, calculate the stresses at the centre of the element.
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