Casting Aluminum Fatigue Assessment Correction Method Based on Crack Propagation Prediction
- https://doi.org/10.2991/iceesd-18.2018.41How to use a DOI?
- Casting Aluminum; Crack Propagation; Fatigue Assessment; Prediction
The fatigue requirement of casting aluminum alloy is varied for different industry, however, it is hard to avoid porosity, shrinkage, or slag during the casting process, leading to uneven quality of casting. the fatigue strength will be influenced by casting porosity, DAS length or stress level. This paper takes single reduction gearbox housing (material for AlSi7Mg0.3) as an example to analyze the prediction algorithm of crack propagation, deduce the key parameters for deciding crack propagation, and carry out a series of experimental studies for casting aluminum fatigue. According to the results of calculation and experiment, the correction coefficient is introduced based on FKM guideline and EN 1999 standard, besides, the evaluation method of fatigue strength has been corrected. As one example, the test results show that if casting aperture diameter more than 0.5 mm, the stress amplitude of fatigue load should not be more than 38.28MPa for load cycles.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Guodong Li AU - Xingyu Wang AU - Jing Zeng PY - 2018/05 DA - 2018/05 TI - Casting Aluminum Fatigue Assessment Correction Method Based on Crack Propagation Prediction BT - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018) PB - Atlantis Press SP - 245 EP - 254 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-18.2018.41 DO - https://doi.org/10.2991/iceesd-18.2018.41 ID - Li2018/05 ER -