v6.08.110 SSND110 — Validation of monocrystalline laws from Dislocation Dynamics

Summary:

On a problem reduced to the material point, a validation of the monocrystalline laws is carried out, either with respect to an analytical solution, or with an experimental reference.

For all models (except C), a mono-crystal loaded according to a particular orientation is tested, allowing the preferred sliding of a single system, at least at the beginning of loading.

For the C modeling, we refer to the experimental results cited by Julien Schwartz in his thesis, which leads to the simulation of a tensile test on a polycrystal consisting of 40 monocrystals whose behavior is MONO_DD_FAT.

Modeling A: this modeling allows you to validate behavior MONO_DD_CFC

B modeling: this modeling allows you to validate behavior MONO_DD_CC

C modeling: this modeling allows you to validate behavior MONO_DD_FAT

D modeling: this modeling allows you to validate behavior MONO_DD_CC_IRRA

E modeling: this modeling makes it possible to validate behavior MONO_DD_CFC_IRRA.

• 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. Reference solution for modeling A
  • 2.2. Benchmark solution for B modeling
  • 2.3. Reference solution for C modeling
  • 2.4. Benchmark solution for 3D modeling
  • 2.5. Reference solution for E modeling
  • 2.6. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Tested sizes and results
• 6. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Tested sizes and results
• 7. E modeling
  • 7.1. Characteristics of modeling
  • 7.2. Tested sizes and results
• 8. Summary of results