The MAAP4 model can provide a good characterization of the material creep behavior exhibited in a large scale experiment performed using reactor grade steel and under thermal-hydraulic boundary conditions that are typical of severe accident sequences that would challenge steel integrity.

 

MAAP4 White Paper

Download the white paper to learn:

 

  • What the MAAP4 creep model is based on
  • Boundary conditions for the Hot Leg and Lower Head Tests
  • Material properties for the Hot Leg Test and Lower Head Failure Experiements
  • The "damage fraction" in the wall