Fatigue testing of complete automotive wheels is
carried out on rotary bendmachines. These commercial
mac hin e s s imulnt e h ar d - c o rn e rin g c o n ditio n s an d
mainly testthefatigue performance of the central
section of an automotive wheel' . This paper develops a
relationship for predicting the fatigue performance of
the wheel,based onfatigue tests of hourglass specimens
machinedfrom centre discs. This is more economical of
material and, in principle, also allows the effect on
fatigue performance of change inproduction
parameters or starting alloy to be assess ed, by
c o n sid e rin g a limit e d numb e r of w h e e I blanks take n
from each stage of the production process. This is
p ote ntially a v ery u s eful to ol in optimisin g mat e rial
selection, wheel design and production parameters. The
p arti c ular c e ntr e - dis c un d e r c o n s id e r atio n i s
manufactured from a dual-phas e ste eI (DP S)2 . Good
c o rr elatio n w as achie v e d b e tw e e n S - lr.' data fr o m th e
automotiv e w he els qnd that from the ho urglas s (H G)
specimens.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000876 |
| Date | 29 December 2009 |
| Creators | McGrath, PJ, Hattingh, DG, James, MN |
| Publisher | R & D Journal |
| Source Sets | South African National ETD Portal |
| Detected Language | English |
| Type | Text |
| Format | |
| Rights | R&D Journal |
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