File:Kt arbre epaule torsion.svg
Jump to navigation
Jump to search
Size of this PNG preview of this SVG file: 536 × 599 pixels. Other resolutions: 215 × 240 pixels | 429 × 480 pixels | 687 × 768 pixels | 916 × 1,024 pixels | 1,833 × 2,048 pixels | 672 × 751 pixels.
Original file (SVG file, nominally 672 × 751 pixels, file size: 192 KB)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]| Description |
Français : Abaque de facteurs de concentration de contrainte (Kt) dans le cas d'un arbre épaulé en torsion. English: Stress concentration factors (Kt) chart for a shaft with shoulder fillet in torsion. |
| Date | |
| Source | Own work, from Pilkey, Walter D., Peterson's Stress Concentration Factors 2nd ed., Wiley & sons (1997), ISBN 97-0-471-53849-3, p. 166 |
| Author | Cdang |
This W3C-unspecified vector image was created with Inkscape .
- Calculation
- t is the fillet height, t = (D - d)/2
| β = t/r | 0,25 ≤ β ≤ 4,0 |
|---|---|
| C1 | |
| C2 | |
| C3 | |
| C4 |
Scilab source
 |
This media was created with Scilab, a free open-source software. Here is a listing of the Scilab source used to create this file. |
// ********************
// Initialisation
// ********************
clear;
clc;
// ********************
// Fonctions
// ********************
// Saisie des paramètres géométriques
function [A]=param_geo()
A(1) = input("grand diamètre : D = ");
A(2) = input("petit diamètre : d = ");
A(3) = input("rayon : r = ");
endfunction
// Calcul en torsion
function [Kt] = Kt_torsion(Alpha, Beta)
coefs = [0.905, 0.783, -0.075;
-0.437, -1.969, 0.553;
1.557, 1.073, -0.578;
-1.061, 0.171, 0.086];
C = coefs(:,1) + coefs(:,2)*sqrt(Beta) + coefs(:,3)*Beta;
polynome = poly(C', "x", "c") ;
Kt = horner(polynome, Alpha);
endfunction
// ********************
// Programme principal
// ********************
// Accueil
disp("Facteurs de concentration de contrainte d''un arbre épaulé")
disp("W. D. Pilkey, Peterson''s Stress Concentration factors, Wiley & sons (1997)")
// A(1) = D ; A(2) = d ; A(3) = r
A = param_geo();
t = 0.5*(A(1) - A(2)); // hauteur de filet
Beta = t/A(3); // t/r
Alpha = 2*t/A(1);
Kt_to = Kt_torsion(Alpha, Beta);
if (Beta < 0.25) | (Beta > 4) then
disp("Torsion : attention, valeur extrapolée");
end
disp('Kt torsion = '+string(Kt_to));
Licensing
[edit]
I, the copyright holder of this work, hereby publish it under the following license:
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:46, 24 April 2013 | | 672 × 751 (192 KB) | Cdang (talk | contribs) | Missing edges in sketch |
| 09:33, 24 April 2013 |  | 672 × 751 (192 KB) | Cdang (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
