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Thermal Stresses in Circular Ceramic Rod Specimens Subjected to Sudden Radiative Cooling
Author(s) -
Welsh Theresa M.,
Knight Charles E.,
Hasselman D. P. H.
Publication year - 1986
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.1151-2916.1986.tb07436.x
Subject(s) - emissivity , materials science , cylinder , ceramic , thermal conductivity , composite material , thermal radiation , thermal expansion , modulus , radiative cooling , stress (linguistics) , thermal , radiation , finite element method , mechanics , thermodynamics , optics , geometry , physics , mathematics , linguistics , philosophy
The thermal stresses which result from sudden radiation heat losses in a ceramic circular cylinder were calculated by the finite‐element method. It was shown that, for a given value of coefficient of thermal expansion and Young's modulus, the magnitude of the maximum stress increases with increasing emissivity and cylinder diameter and decreasing thermal conductivity. In terms of the initial temperature, T, the maximum stress was found to be proportional to T x , with 3.3 ≤x≤ 3.5.