Author : Canada Centre for Mineral and Energy Technology
Publisher :
Page : 75 pages
File Size : 26,78 MB
Release : 1982
Category :
ISBN :
[PDF] Catalogue Of Canmet Publications 1981 eBook
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Catalogue of CANMET Publications 1981
Author :
Publisher :
Page : 72 pages
File Size : 23,88 MB
Release : 1982
Category :
ISBN : 9780660527284
CANMET Catalogue of Publications
Author : Canada Centre for Mineral and Energy Technology
Publisher :
Page : 256 pages
File Size : 20,19 MB
Release : 1988
Category : Government publications
ISBN :
Government of Canada Publications
Author :
Publisher :
Page : 1104 pages
File Size : 36,62 MB
Release : 1981
Category : Government publications
ISBN :
Catalogue Des Publications de CANMET
Author : Canada Centre for Mineral and Energy Technology. Technology Information Division
Publisher :
Page : 160 pages
File Size : 33,92 MB
Release : 1981
Category : Mineral industries
ISBN :
Catalogue of canmet publications 1981/82
Author :
Publisher :
Page : 0 pages
File Size : 45,30 MB
Release : 1982
Category :
ISBN :
Stress corrosion cracking can potentially cause fuel failures at circumferential ridges in the sheath. finite element computer codes elestres and feast are used to calculate two-dimensional, axisymmetric, elastic-plastic sheath stresses at and near the circumferential ridges. the level of stresses is given by the fuel design (such as pellet/sheath diameters, pellet length, pellet density) and by the operating conditions (such as power history). the accuracy, convergence, and cost of the stress calculations, however, are determined by the discretization used in the calculations: the number of nodes in the finite element mesh; the shape of the individual finite elements; the pattern into which the finite elements are arranged; and the size of the calculation-steps into which the power history is subdivided. in this study, we determined the discretization that gives a reasonable compromise of accuracy, convergence, and cost for the stress calculations. the highest accuracy is obtained by using triangular finite elements of aspect ratios close to one, and assembling them into hexagonal patterns. to caputure the stress gradients, five nodes are required across the sheath wall at the ridge, but two nodes are sufficient near the midplane of the pellet. the resulting mesh contains about 200 nodes and about 300 finite elements. calculation-steps of 6 kw/m provide a convergent solution, with a factor of two margin against numerical divergence. with the above arrangement, feast needs about 2.4 seconds on a cdc/cyber 175 computer to calculate sheath stresses per calculation-step. six radial nodes at the ridge would double the computing cost. decreasing the size of the calculation-steps means more calculations are needed to analyze a given power history, giving a linear increase in computing cost.
Browsing Science Research at the Federal Level in Canada
Author : Brian B. Wilks
Publisher : University of Toronto Press
Page : 664 pages
File Size : 34,9 MB
Release : 2004-01-01
Category : Science
ISBN : 9780802088116
Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.
CANMET Report
Author : Canada Centre for Mineral and Energy Technology
Publisher :
Page : 586 pages
File Size : 43,97 MB
Release : 1984
Category : Metallurgy
ISBN :
C A N M E T Review
Author : Canada Centre for Mineral and Energy Technology
Publisher :
Page : 92 pages
File Size : 18,46 MB
Release : 1981
Category : Mineral industries
ISBN :
Catalogue Des Publications de CANMET
Author : Canada Centre for Mineral and Energy Technology. Technology Information Division
Publisher :
Page : 120 pages
File Size : 30,97 MB
Release : 1980
Category : Mineral industries
ISBN :