{include: ANSYS 12 - Tensile Bar - Panel} h4. Pre-analysis and start-up h6. Analytical Approach: Assuming plane stresses: The two dimensional equilibrium equations are: \\ {latex} \begin{eqnarray} {\partial \sigma_x \over \partial x} + {\partial \tau_{yx} \over \partial y} + F_x = 0 \nonumber\\ {\partial \tau_{xy} \over \partial x} + {\partial \sigma_y \over \partial y} + F_y = 0 \nonumber \end{eqnarray} {latex} \\ Since we are ignoring the effects of gravity; there are no body forces per unit volume. {latex} \begin{eqnarray} F_x = F_y =0\nonumber \end{eqnarray} {latex} Assuming no normal stress in the y direction:// \begin{eqnarray} sigma_y = 0\nonumber \end{eqnarray} !tut1eqn4.jpg! The equilibrium equation in the y direction becomes: !tut1eqn5.jpg! τ_yx must also be a constant, therefore the equilibrium equation in the x-direction becomes: !tut1eqn3.jpg! Therefore; \\ !tut1 eqn3.jpg! Apply Boundary Conditions: If we make a cut at "A", as indicated in the problem specification, then the stress in A must be P/A. Therefore, !tut1 eqn4.jpg!\\ h6. ANSYS simulation: Open and start the simulation: 1. Download "Class demo1.rar" 2. Unrar the file 3. Open the folder 4. Double click "Class Demo1.wbpj" 5. Follow further instructions from lab supervisor. \\ [*Go to Results*|ANSYS 12 - Tensile Bar - Results] [See and rate the complete Learning Module|ANSYS 12 - Tensile Bar - Problem Specification] [Go to all ANSYS Learning Modules|ANSYS Learning Modules] |