v7.31.100 WTNV100 - Undrained triaxial test with model CJS (level 1)

Summary

This test validates level 1 of model CJS. It is a triaxial test under undrained conditions.

In the first two models, the calculations are carried out only on the solid part of the soil, the undrained aspect being modeled by zero volume deformation of the skeleton, these are \(\mathrm{3D}\) models that differ from each other only by the mesh.

In the third modeling, hydraulic coupling is taken into account, the sample is completely saturated, the skeleton and the fluid are assumed to be incompressible.

For reasons of symmetry, only one eighth of a sample subjected to a triaxial test is interested in.

The lockdown level is \(100\mathit{kPa}\).

The results obtained with model CJS1 are compared to an analytical solution.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Property of materials
  • 1.3. Initial conditions, boundary conditions, and loading
• 2. Benchmark solution
  • 2.1. Reference solution for linear water pressure
  • 2.2. Development of the analytical solution CJS
  • 2.3. Benchmark results
  • 2.4. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 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. Tested sizes and results
• 6. Summary of results