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Stress Analysis of the Seal in a Sodium‐Sulfur Battery Cell
Author(s) -
Trantina G. G.
Publication year - 1981
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1981.tb10258.x
Subject(s) - seal (emblem) , materials science , ovality , weibull distribution , stress (linguistics) , finite element method , composite material , modulus , weibull modulus , sulfur , battery (electricity) , metallurgy , structural engineering , flexural strength , thermodynamics , art , linguistics , statistics , philosophy , mathematics , power (physics) , physics , engineering , visual arts
A finite‐element stress analysis of the seal in a sodium‐sulfur battery cell was performed. Sealing stresses due to thermal expansion mismatch are relatively low but can be further reduced by modifying the counterbore. The effect of ovality can be treated as a seal thickness effect where the stresses increase with seal thickness. The effect of fracture strength, Weibull modulus, and strength degradation parameters on the probability of failure of beta alumina in the cell was demonstrated.