Galerkin Method Made Simple — Choosing Trial Functions Correctly

In this video, we solve the first example of the Galerkin Method in the Finite Element Method (FEM) series. We focus on how to choose and construct trial functions, which form the basis of the approximate solution in the Galerkin approach. Through this step-by-step example, you’ll learn how to express the residual, apply the weighted residual principle, and derive the system equations systematically. 🔹 Topics covered: Setting up the problem for Galerkin formulation Choosing appropriate trial (basis) functions Applying the weighted residual principle Simplifying and interpreting the resulting equations Understanding the physical meaning of the trial functions This is the first example in a two-part series on the Galerkin Method. In the next video, we’ll solve another example to obtain the approximate solution and compare it with the exact solution. #FiniteElementMethod #FEM #GalerkinMethod #TrialFunctions #EngineeringMechanics #StructuralEngineering #NumericalMethods #CivilEngineering