Abstract
The effect of materials processing- and component manufacturing-induced uncertainties in material properties and component shape and size on the reliability of component performance is investigated. Specifically, reliability of a suspension system component from a high-mobility multipurpose wheeled vehicle which typically can fail under low-cycle strain-based fatigue conditions is analyzed. Toward that end, the most advanced reliability-based design optimization methods available in the literature were combined with the present understanding of low-cycle fatigue durability and applied to the component in question. This entailed intricate integration of several computational tools such as multibody vehicle dynamics, finite-element simulations, and fatigue strain-life assessment/prediction techniques. The results obtained clearly revealed the importance of consideration of material property uncertainties in attaining vehicle performance of critical structural components in complex systems (e.g.a vehicle).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 301-313 |
| Number of pages | 13 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 2010 |
| Externally published | Yes |
Keywords
- Fatigue-controlled durability
- Material property uncertainties
- Probabilistic constraints
- Reliability-based design optimization (RBDO)
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering