CAE Knowledge

Seminar: Analytische Methoden zur Verifizierung und Validierung von FEM-Berechnungen

• Basic principles and applications of the FEM
  • Approximation methods of Galerkin
  • Selection of the appropriate element type
  • Influence of elementtechnology
  • Condition for solvability of equation systems
  • Error analysis

• Material Nonlinearity
  • Material behavior
  • Material laws
  • Limit load method

• Contact
  • Element selection, symmetrical - and asymmetrical contact
  • Hertz compression
  • Hyperelasticity

• Structures with notches
  • Geometrical imperfections
  • Discretization
  • Element selection
  • Convergence

• Structural stability
  • linear and nonlinear buckling analysis
  • Eigenvalues
  • buckling phenomena

• Dynamics
  • Modal analysis, natural frequencies,
  • Transient analysis
  • Frequency response analysis
  • Reduction methods

• Quality of a FE-simulation
  • Quality models, QM-System
  • Check list of a FE-simulation
  • Compare current FE-Programms

• Fatigue, Sensitivities and Optimization
  • Damage accumulation after PALMGREN-MINER
  • Verification methods
  • Linear and nonlinear optimization
  • Biotechnical strategies
  • Topology optimization

Examination of the resuIts is an important component for a safe application of FEM. This becomes difficult with complex components, since possibilities of comparing with analytical calculations or with usually expensive component tests are not available. Apart from pointing out frequent sources of error, analytic verification possibilities for simple as well as more complex systems are presented.