Simulation of the creep behaviour of P92 sandwich structures at 650 °C with loading transverse to the intermediate layer

In order to characterise and simulate the mechanical behaviour of the structures, creep tests with loading transverse to the intermediate layer were carried out and used as a reference for the simulated results. In this work the creep behaviour was simulated with the finite element method using creep law material parameters determined from bulk material. A model for a prediction of the point of time when single weld joints collapse was introduced.