v5.02.104 SDNL104 - Non-linear transient substructuration: impact of a beam on 1 support

Summary:

The field of application of this test concerns the dynamics of structures, and more particularly the calculation of non-linear transient response by dynamic substructuring.

The aim is to calculate the non-linear transient response of a bending beam with impact on an elastic support and subjected to a constant force from the initial moment. The beam is modelled by elements of type POU_D_E (Euler beam model).

The reference results come from a direct transitory calculation on the non-substructured model, using the DYNA_NON_LINE operator. This test therefore makes it possible to validate the tools for calculating the transient response by substructuring, in the case of taking into account shock-type nonlinearities on a fixed obstacle.

The advantage of static modes in enriching the projection base and the orthogonalization of the base is also verified.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of the models
  • 3.2. Characteristics of the mesh
  • 3.3. Observed values: references for B modeling
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Observed values
• 6. D modeling
  • 6.1. Characteristics of the models
  • 6.2. Characteristics of the mesh
  • 6.3. Observed values: references for B modeling
• 7. Summary of results