Finite element method is the way to conduct complicated scientific studies economically in a short time. Many complicated engineering problems can be solved by means of ANSYS Workbench finite element software. This book includes 9 significant chapters for students who conduct scientific studies. Many case studies were firstly calculated with analytical formulation and then model validation was done with workbench so that the students could better understand the finite element method.In general the book explains finite element theory basic modeling logic drawing techniques mesh techniques modal analysis seismic analysis and impact analysis with detailed examples. Each student who successfully accomplishes the examples in the book can overcome much more complex mechanical problems. The given examples concern both civil engineering and major mechanical phenomena of mechanical engineering.