v7.14.303 HSLV303 — Verification of the CALC_THERMECA_MULT operator on a hollow cylinder subjected to thermal shock

Summary:

To reduce the time required to set up thermo-mechanical calculations in the linear domain, a new methodology is proposed. This methodology consists in determining the temperature in a structure from the calculation of a unit thermal shock using the macro command CALC_THERMECA_MULT.

The objective of this test case is to validate this methodology on the one hand and to verify its ease of implementation on the other hand. In this test case, a tube in which a fluid carrying a thermal shock circulates is modelled. Then the mechanical response is calculated using the same methodology.

The four models carried out are as follows:

• Modeling A: volume modeling that calculates the transient thermal response and the associated mechanical response for heat shock \(\mathrm{\Delta }T=50°C\) from the unit heat shock \((\Delta {T}_{U}=1°C)\) via CALC_THERMECA_MULT.

• Modeling B: axisymmetric modeling where we calculate the transient thermal response and the associated mechanical response for thermal shock \(\mathrm{\Delta }T=50°C\) from the unit heat shock \((\Delta {T}_{U}=1°C)\) via CALC_THERMECA_MULT.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
  • 1.5. Details concerning the models
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Thermal analysis
  • 3.3. Characteristics of the mesh
  • 3.4. Results of modeling A
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. B modeling results
  • 4.4. notes
• 5. Summary of results