Answer the following problems in detail.
problem 1) What is Ritz approach used in FEM?
problem 2) What do you mean by isoparametric elements?
problem 3) describe ‘shape function’ in detail.
problem 4) prepare down the Gauss Quadrature rule used in FEA?
problem 5) prepare down the two characteristics of global stiffness matrix.
problem 6) What are the various sources of errors in FEA?
problem 7) What do you mean by ‘axisymmetric elements’?
problem 8) prepare down the difference between a rectangular and a quadrilateral element?
problem 9) Describe the use of natural coordinate system in FEM.
problem 10) prepare down the factors for selection of type of element used for mesh generation in FEA.
problem 11) Derive the element stiffness matrix for a 2-D beam problem Using Galerkin approach.