v2.02.149 SDLL149 — Seismic calculation of pipe BM3 (test NRC)

Summary:

This test mainly makes it possible to validate the implementation of method GUPTA (correlation between periodic and rigid parts of a modal response) on a seismic calculation by spectral method applied to a portion of pipes (COMB_SISM_MODAL).

Other methods are also evaluated on the same configuration:

• SRSS,

• CQC,

• CQC with pseudo-mode.

This test was proposed by NRC to validate the seismic design of nuclear installations.

• 1. Reference problem
  • 1.1. Problem
  • 1.2. Geometry
  • 1.3. Meshing
  • 1.4. Materials
  • 1.5. Boundary conditions and loads
  • 1.6. Modeling
• 2. Modeling A
  • 2.1. Characteristics of modeling
  • 2.2. Tested sizes and results
• 3. B modeling
  • 3.1. Characteristics of modeling
  • 3.2. Tested sizes and results
• 4. C modeling
  • 4.1. Characteristics of modeling
  • 4.2. Tested sizes and results
• 5. D modeling
  • 5.1. Characteristics of modeling
  • 5.2. Quantities tested and results by spectral calculation
• 6. Summary of results