Question

Galerkin technique is also called as _____________

(a) Variational functional approach

(b) Direct approach

(c) Weighted residual technique

(d) Variational technique

I had been asked this question in class test.

My question is taken from One Dimensional Problems topic in division One Dimensional Problems of Finite Element Method

Answer 1

The correct choice is (c) Weighted residual technique

For explanation I would say: The equivalent of applying the variation of parameters to a function space, by converting the equation into weak formulation. Galerkin’s method provide powerful numerical solution to differential equations and modal analysis. The Galerkin method of weighted residuals, the most common method of calculating the global stiffness matrix in the finite element method.