Figure 1.1-1: geometry of the straight pipe

v6.04.130 SSNV130 —Straight cracked elasto-plasticity pipe subjected to bending

Summary:

The problem under consideration is a cracked right tube with a semi-elliptical circumferential defect in the inner skin. The straight tube is subjected to a bending moment. This test makes it possible to calculate the local energy restoration rate at the bottom of the crack by the G-theta method (command CALC_G). The local energy return rate is calculated according to interpolation LINEAIRE. The integration rings are defined by the data of the number of layers (NB_COUCHE_INF and NB_COUCHE_SUP).

The value of G at the bottom of a crack is compared to a score used for the validation of simplified methods in fracture mechanics.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
• 2. Reference solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Bibliography
• 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. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
• 7. E modeling
  • 7.1. Characteristics of modeling
  • 7.2. Characteristics of the mesh
  • 7.3. Tested sizes and results
• 8. F modeling
  • 8.1. Characteristics of modeling
  • 8.2. Characteristics of the mesh
  • 8.3. Tested sizes and results
• 9. Summary of results