v6.04.116 SSNV116 — POLYCRISTAL steel UMAT law — benchmark with Abaqus

Summary:

Within SINDRI research project [4] a benchmark between Abaqus and code_aster has been developed based on a Crystal Plasticity Finite Element (CPFE) behaviour law using the formalism of UMAT [1,2].

The geometry is a 1x1x1 cube derived from DREAM3D software which produces synthetic EBSD grains orientations. The sample is submitted to a fixed displacement to one end and clamped on another end.

With this test it is shown that code_aster results compares well to Abaqus.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Description of the tests
• 2. Reference solution
  • 2.1. Calculation method of the reference solution
• 3. Model A
  • 3.1. Characteristics
  • 3.2. Fields tested and results
• 4. Model B
  • 4.1. Characteristics
  • 4.2. Fields tested and results
• 5. Model C
  • 5.1. Characteristics
  • 5.2. Fields tested and results
• 6. Model D
  • 6.1. Characteristics
  • 6.2. Fields tested and results
• 7. Concluding remarks
• 8. Literature