Abstract
In this study, a fatigue assessment method for vehicle suspension systems having welded geometries was established under a bending loading condition. For the fatigue life estimation of the actual product's welded joints made of different steels, bending fatigue tests were performed on welded specimens with a simplified shape for obtaining the moment-fatigue-life plot. Further, geometry modeling of the simplified welded specimens was conducted. Results of finite element analysis were used to obtain the stress-fatigue-life plot. The analysis results were also used to calculate the stress concentration factors for notch-factor-based fatigue life estimation. The test results were compared with results of the general notch-factor-based fatigue life estimation for improving fatigue assessment. As a result, it was concluded that both the welded fatigue tests and the notch-factor-based fatigue life estimation are necessary for accurate fatigue assessment.
Original language | English |
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Pages (from-to) | 1163-1169 |
Number of pages | 7 |
Journal | Transactions of the Korean Society of Mechanical Engineers, A |
Volume | 38 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2014 Oct 1 |
Bibliographical note
Publisher Copyright:© 2014 The Korean Society of Mechanical Engineers.
ASJC Scopus subject areas
- Mechanical Engineering