Abstract
Fatigue life is a key consideration in the design of cast aluminum alloy automotive wheels which offer both improved strength-to-weight ratio and fuel efficiency. The cyclic in-service (applied load and residual) stress distribution within a wheel is a limiting factor determining a wheel's fatigue performance. In this investigation, a through process modeling methodology was applied to predict the cyclic stress state of an A356 automotive wheel subject to a bending moment. The predicted residual stresses arising during heat treatment and released through machining were validated by a destructive strain measurement technique. With the residual stress state used as an initial condition, the variation of the in-service stress state during a bending test was predicted. The measured strain variations within the wheel for a series of different bending loads were found to agree well with the predictions. These results were incorporated into a through process modeling approach to assess the fatigue performance of the wheel.
| Original language | English |
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| Title of host publication | TMS Annual Meeting|TMS Annu Meet |
| Pages | 73-80 |
| Number of pages | 7 |
| Volume | 2006 |
| Publication status | Published - 2006 |
| Event | 2006 TMS Annual Meeting - San Antonio, TX Duration: 1 Jul 2006 → … |
Conference
| Conference | 2006 TMS Annual Meeting |
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| City | San Antonio, TX |
| Period | 1/07/06 → … |
Keywords
- Cyclic Loading
- Fatigue
- Residual Stress
- Stress Analysis