In the weak formulation of the plane elasticity equations, even though the methods, the principle of virtual displacements and the three-step weak formulation, give, mathematically different finite element models, they are the same in their algebraic forms.
In the weak formulation of the plane elasticity equations, even though the methods, the principle of virtual displacements and the three-step weak formulation, give, mathematically different finite element models, they are the same in their algebraic forms. Correct Answer False
There are two different ways of constructing the weak forms and associated finite element model of the plane elasticity equations. The first one is the principle of virtual displacements, while the second is a three-step procedure to obtain a weak form of governing differential equations. Of course, both methods give, mathematically, the same finite element model, but differ in their algebraic forms.
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Feb 20, 2025