Simulation and analysis for residual stresses in anode-supported flat-plate solid oxide fuel cells for ships

For investigating the distribution of residual stress in marine SOFC, this paper establishes a two-dimensional axisymmetric model of a SOFC single cell to simulate the temperature change in the cell preparation process, and the results find that: The residual stresses in the cell are mainly concentrated at the bond where the anode support layer and the electrolyte layer combine. At the outermost intersection, there is a maximum stress of 184.43 MPa. Meanwhile, we analyze the interaction of component thickness parameters for residual stresses, and the simulation results show that: The largest first principal stress of the assembly shows a straight-line decreasing trend when the thickness of the anode support layer increases; However, in the same scenario for the electrolyte layer, the maximum stress increases rapidly in the beginning and then increases slowly until it does not increase anymore; There is no effect of the variation in thickness parameters for the cathode and isolation layers on the maximum first principal stress of the module.