Research on Fatigue Fracture Mechanism of Balanced Suspension Leaf Spring Seat of Engineering Vehicle
Journal Title: Automobile Technology & Material - Year 2024, Vol 39, Issue 2
Abstract
In order to address the issue of failure fracture of balance suspension leaf spring seat of engineering vehicle, this paper analyzed the balance suspension leaf spring seat by process analysis, fracture analysis,metallographic examination, strength test, hardness test and material fatigue limit testing. The results show that the material used in the balance suspension leaf spring seat meets the standard requirements, and the failure modes include multi- source high stress and low cycle bending fatigue cracking, the crack originates from the rounded root between the balance suspension leaf spring seat and the U- bolt, which is thick and easy to produce defects like shrinkage and porosity in the production process. In the structure, this position is the balance suspension leaf spring seat under the greatest stress position and a dangerous section of the part.
Authors and Affiliations
He Mingxue, Li Wei, Liu Haodong, Huang Juan, Guo Zhipeng, Liu Ying
Keywords
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- EP ID EP731948
- DOI 10.19710/J.cnki.1003-8817.20230103
- Views 15
- Downloads 0
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