PERMAS workshop Non-linear Static Analysis (NLS)
Application of nonlinear methods with PERMAS
In this two-day training, the participants will get an overview of the application of nonlinear methods in PERMAS. There will be a special emphasis on the close connection of the theoretical facts with the corresponding formulation in PERMAS.
The first day offers a summary of the theoretical basics of nonlinear statics. These include the material non-linearities of elasticity and plasticity as well as temperature dependent material behavior.
Visco-plasticity and creep will be covered as needed.
An additional chapter deals with the geometric nonlinearity. Here it will be shown which criteria apply to a geometrically nonlinear task and how these are dealt with. On the theoretical and PERMAS-related training topics practical tasks are given.
The second day will give an introduction in the different material models, such as von Mises, Tresca and cast iron. Here the theory will be discussed in detail in order to explain the correct use of the calculation parameters. The available nonlinear strategies and iteration methods will be explained and assigned to the application areas.
Special emphasis will be placed on exercises with different constellations of nonlinear
effects. Especially on the second day, more complex examples will be dealt with in order to get to know the different combinations of nonlinearities and iteration methods. Questions of convergence and correct interpretation of nonlinear phenomena will also be deepened.
- 1st day (NLS-1):
- Basics in material non-linearities, temperature dependence, creep, visco-plasticity and geometric non-linearity, modeling in PERMAS, exercises
- 2nd day (NLS-2):
- Deepening of nonlinear theory, iteration methods, material models, cast iron, combination of material non-linearity with geometric non-linearity, special cases, modeling in PERMAS, exercises
- Prerequisite:
- Basic knowledge in PERMAS.