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{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\\
{\partial \tau_{xy} \over \partial x} + {\partial \sigma_y \over \partial y} + F_y = 0
\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
\end{eqnarray}
{latex}
!tut1eqn1.jpg!
Assuming no normal stress in the y direction:
\\ !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.
\\
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...
Pre-analysis and start-up
...
Analytical Approach:
...
Assuming plane stresses:
The two dimensional equilibrium equations are:
...
Assuming no normal stress in the y direction:
The equilibrium equation in the y direction becomes:
τ_yx must also be a constant, therefore the equilibrium equation in the x-direction becomes:
Therefore;
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,
...
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.
See and rate the complete Learning Module
...