DETERMINATION OF THE FATIGUE LIMIT OF AUTOMOBILE WHEELS
Abstract
To improve the quality of wheels, a new method for evaluating the fatigue life of wheels is proposed in this paper. The equivalent stress amplitude was calculated based on the nominal stress method by considering the effects of mean load. The fatigue life of aluminum wheels was predicted by using the equivalent stress amplitude and aluminum alloy wheel S-N curve. The results from the aluminum wheel rotary fatigue bench test showed that the baseline wheel failed the test and its crack initiation was around the hub bolt hole area that agreed with the simulation.
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