@inproceedings{00b96caef79c4966940e575be4f72bba,

title = "Finite element analysis of thermal stress distribution in planar SOFC",

abstract = "A 3-D finite element analysis (FEA) model of a 3-cell stack based on a prototype planar SOFC stack design was constructed to perform thermal stress analyses at shutdown and steady operation conditions. The constructed 3-D FEA model consists of complete planar SOFC components such as positive electrode-electrolyte-negative electrode (PEN) assembly, interconnect, nickel mesh, and gas-tight glass-ceramic seal. The thermal stress distributions at shutdown and steady-state stages as well as their dependence on the initial stress-free temperature and operation cycles were systematically evaluated. Modeling results indicated that the glass-ceramic sealant was the most critical part needed to be watched in terms of structural integrity, in particular at operation temperature where shear fracture of such a component was predicted. Localized plastic deformation was predicted for the metallic interconnect and frame at both shutdown and steady-state conditions. An increase in the initial stress-free temperature would significantly increase the thermal stresses in all of the components at both shutdown and steady-state stages. In addition, a notable increase of thermal stress with increasing cycle number in the PEN at steady-state stage as well as in the glass-ceramic sealant at shutdown stage was predicted.",

author = "Lin, {Chih Kuang} and Chen, {Tsung Ting} and Chen, {An Shin} and Chyou, {Yau Pin} and Chiang, {Lieh Kwang}",

year = "2007",

doi = "10.1149/1.2729310",

language = "???core.languages.en_GB???",

isbn = "9781566775564",

series = "ECS Transactions",

number = "1 PART 2",

pages = "1977--1986",

booktitle = "ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X",

edition = "1 PART 2",

note = "10th International Symposium on Solid Oxide Fuel Cells, SOFC-X ; Conference date: 03-06-2007 Through 08-06-2007",

}