Difference between weighted residual and weak formulation method
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I think that:-
Direct Method Based on physical reasoning and limited to simple cases, this method is worth studying because it enhances physical understanding of the process, It is Based on the B.C for each case
Weighted Residual Method Starting with the governing differential equation, special mathematical operations develop the “weak form” that can be incorporated into a FEM equation. This method is particularly suited for problems that have no variational statement, it is an integral approach in which we integrate the weighted residual of the governing equation.
Direct Method Based on physical reasoning and limited to simple cases, this method is worth studying because it enhances physical understanding of the process, It is Based on the B.C for each case
Weighted Residual Method Starting with the governing differential equation, special mathematical operations develop the “weak form” that can be incorporated into a FEM equation. This method is particularly suited for problems that have no variational statement, it is an integral approach in which we integrate the weighted residual of the governing equation.
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