v6.03.112 FORMA10 - Practical work from the « Advanced use » training: loading path

Summary:

This test illustrates, on a material point, the influence of the loading path on the response of elastoplastic behavior. It highlights the effects of time discretization. It is inspired by test SSNP15: a material point, made of a plastic material with linear isotropic work hardening, is subjected to both tensile and shear forces. The main advantage of this test lies in the non-radial nature of the load.

Modeling A corresponds to force-imposed calculation, with behavior VMIS_ISOT_LINE, and illustrates the influence of a discretization in rough time compared to the solution obtained with a finer time step. To obtain a solution with a finer time step, we force the re-division of the time step on a criterion based on the increment of the cumulative plasticity (modeling B).

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Boundary conditions and loads
  • 1.3. Material properties
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. 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. Summary of results