On the Three-Dimensional Finite Element Analysis of Dovetail Attachments

[+] Author and Article Information
J. R. Beisheim

Development Group, ANSYS, Inc., Canonsburg, PA

G. B. Sinclair

Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803

J. Turbomach 125(2), 372-379 (Apr 23, 2003) (8 pages) doi:10.1115/1.1539867 History: Received October 10, 2001; Online April 23, 2003
Copyright © 2003 by ASME
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Dovetail blade attachment from a gas turbine engine: (a) global grid, (b) close-up of contact region in global grid, (c) submodel grid
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Dovetail attachment test piece
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Finite element grids for dovetail attachment test piece: (a) global coarse grid, (b) submodel coarse grid, (c) outer restraining ring coarse grid
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Normalized contact stress results: (a) blade segment with lines along which stresses are taken, (b) contact stresses straight across the blade (r1), (c) contact stresses down the blade (r2), (d) contact stresses diagonally across the blade (r3)
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Representative region for interpolation with bicubic surface




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