v3.02.115 SSLP115 - Calculation of the energy release rate of a cracked disk in the presence of initial stresses

Summary

This test makes it possible to validate the calculation of the energy restoration rate by the theta method in the presence of a state of initial constraints.

Modeling A: an embedded and cracked disk is subject to a field of initial stresses opening the crack. This initial stress field is identical to that generated by a thermal gradient. The solution is identical to that obtained in the case of thermal loading alone, validating the consideration of an initial state of constraints.

Modeling B: it is similar to modeling A with a non-meshed crack (X- FEM).

Modeling C: it is similar to modeling A. Material coefficients are defined by constant temperature functions.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Benchmark solution
• 2. Modeling A
  • 2.1. Characteristics of the mesh
  • 2.2. Calculations made
  • 2.3. Tested sizes and results
• 3. B modeling
  • 3.1. Characteristics of the mesh
  • 3.2. Calculations made
  • 3.3. Tested sizes and results
• 4. C modeling
• 5. Summary of results