Page 27 - Mechanical Engineer's Data Handbook
P. 27
16 MECHANICAL ENGINEER’S DATA HANDBOOK
No. of
spokes Value of constant c
4
6
8
Annular wheel
For axial length assumed ‘small’:
where: u=rzw
2 Ar
Tensile stress in spokes us=-.pu2
3cA,
Long thick cylinder
Maximum tangential stress
Spoked wheel
Maximum radial stress ur=
8(1 -v)
Greatest tangential stress ul = pu2 (at r = a
Maximum axial stress ua=-
4(1 -v)
where: r=mean radius of rim.
(tensile at rlr compressive at r2)
