) Using literature discuss the differences between linear and nonlinear analysis, and discuss the main criterion governing the selection of the linear and nonlinear solver when solving a Finite Element Analysis. In Siemen's NX Nastran Simcentre which nonlinear solution types increment loads using fields, with time defined as the independent variable? [10 marks

] b) Research and critically analyse the differences between different types of nonlinear behaviour- (Nonlinear geometry & Nonlinear material).