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STRESSES IN DOMES AND CROWNS OF CIRCULAR KILNS *
Author(s) -
Goodier I.N.
Publication year - 1933
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.1151-2916.1933.tb19220.x
Subject(s) - kiln , catenary , stress (linguistics) , ultimate tensile strength , structural engineering , principal stress , point (geometry) , symmetry (geometry) , materials science , geology , geometry , mathematics , composite material , engineering , shear stress , linguistics , philosophy , metallurgy
Previous papcrs on the analysis of stress in various kinds of domes and crowns of circular kilns point to the dcsirability of a simple and general method applicable to any proposed shape, and capable of indicating what shape will ensure the satisfaction of certain special stress conditions. The method given here can be applied graphically or analytically to domes or kilns, either complete or with circular openings in the crown. The principal point of intcrest for masonry structurcs is whether tensile stresses will occur or not, their occurrence being rcgarded as a criterion of instability. In domes the circuniferential stress (acting across vertical sections through the axis of symmetry) may or may not be tensile according to the shape of the profile. It is shown that domes whose profilesare parabolas or catenaries are free from tensile stress, whether open at the top or not, and that openings are favorable to stability in kiln crowns of any shape of profile. The particular shape which ensures complete freedom from circumferential stress, tensile or compressive, is investigated with results at variance with those of a recent paper. 1 The principal conclusions arrived at are given in the summary.