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