Thermo-mechanical analyses and fatigue verifications of the ERID panels were undertaken considering the most demanding condition produced by breakdown and beam - on/off cycles during the operation in ITER HNB injectors. A validated finite element model was p repared with non - linear material properties and a deep assessment of data available was addressed considering past analyses carried out by CCFE in 2014 and calculated power densities to be applied onto the model surfaces. A customised ANSYS executable prog ram was used to simulat e the subcooled boiling conditions expected in the swirl flow of cooling channels. The thermal results produced by transient thermo - hydraulic analyses were applied as body load onto the mechanical model to calculate stress and strain fields. The a nalysis results were post - processed for the fatigue verification by evaluating local effects and creep - fatigue interaction.
Thermo-mechanical analyses and fatigue verifications of ERID panels
Dalla Palma M
2016
Abstract
Thermo-mechanical analyses and fatigue verifications of the ERID panels were undertaken considering the most demanding condition produced by breakdown and beam - on/off cycles during the operation in ITER HNB injectors. A validated finite element model was p repared with non - linear material properties and a deep assessment of data available was addressed considering past analyses carried out by CCFE in 2014 and calculated power densities to be applied onto the model surfaces. A customised ANSYS executable prog ram was used to simulat e the subcooled boiling conditions expected in the swirl flow of cooling channels. The thermal results produced by transient thermo - hydraulic analyses were applied as body load onto the mechanical model to calculate stress and strain fields. The a nalysis results were post - processed for the fatigue verification by evaluating local effects and creep - fatigue interaction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.