Abstract
The causes of failure in wheel rims has been only recently investigated and this paper is a contribution dealing with public service vehicle type wheels.
Various types and sizes of wheel are considered, statically and dynamically, with differing tyre sizes. The results obtained with wire resistance strain gauges are claimed to be more reliable than those achieved by the deflexion method. Stresses in the critical parts of a wheel are produced by assimilating the forces which would be experienced in service, including bumps, corners, and braking.
The influence on wheels of acceleration on corners and deceleration due to braking is examined and results shown. Stress analysis of a wheel is only part of the design problem, since residual stresses induced during manufacture, the properties of the material and the order of severity of service conditions have also to be taken into account.
The investigation concludes with a comparison of a welded wheel and a riveted wheel, but the latter has received wider consideration. It is not claimed to be a complete investigation suitable for establishing a design procedure, but results obtained provide much useful information.
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