Abstract
Fracture formation can be observed in brittle yttria-stabilized zirconia in Ni-YSZ composite anode during high-temperature operation of solid oxide fuel cells. It is difficult to predict the fracture formation in brittle solid materials accurately based on the classical continuum mechanics theory because of the singularity problems in partial differential equations. An ordinary state-based-peridynamic model is proposed to predict the fracture formation under external loads in SOFC anode in micro-scale using focused ion beam-scanning electron microscopy dual-beam technique in this work. The thermo-mechanical coupling effect is also investigated by simulating the formation and propagation of macro-scale crack in single cell under thermal shock.
Published Version
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