Question p.6.8: It is required to formulate the stiffness of a triangular el...
It is required to formulate the stiffness of a triangular element 123 with coordinates (0, 0), (a, 0), and (0, a), respectively, to be used for ‘plane stress’ problems.
(a) Form the [B] matrix.
(b) Obtain the stiffness matrix [K^e].
Why, in general, is a finite element solution not an exact solution?
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