v6.04.118 SSNV118 - Tensile shear test with the viscoplastic Chaboche model

Summary:

Quasi-static nonlinear problem of the mechanics of structures in transition.

Analysis of the response of a volume element to a tension-shear loading that imposes a uniform stress-strain state.

On an identical problem, 4 models are carried out:

• the first tests behavior VISCOCHAB with implicit integration and constant material coefficients with a coherent tangent matrix at each iteration,

• the second tests behavior VISCOCHAB with implicit integration and temperature-dependent material coefficients and integration with an elastic matrix,

• the third test the VISCOCHAB behavior with explicit integration and constant coefficients,

• the fourth compares behaviors VISCOCHAB and VISC_CIN2_MEMO, with implicit integration and a coherent tangent matrix.

This test therefore validates in particular the numerical integration of the Chaboche elastoviscoplastic behavior model taking into account the phenomenon of memory of work hardening, for the two models VISCOCHAB and VISC_CIN2_MEMO.

• 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
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Tested sizes and results
  • 3.3. notes
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Tested sizes and results
  • 4.3. notes
• 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
  • 6.3. notes
• 7. Summary of results