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- Title
The tension–tension fatigue behavior of carbon fiber/epoxy woven composites with stable structural reinforcements.
- Authors
Ma, Zhenyu; Ma, Wensuo; Man, Ruidong; Jia, Chenhui; Ma, Zhenhao; Xu, Yonghao
- Abstract
Carbon fiber/epoxy woven composites with stable structural reinforcements exhibit a better static mechanical property than composites with unstable reinforcements. The stable structural reinforcements show a limited deformation during the curing process. To investigate the influence of reinforcements on the tension–tension fatigue properties of composites, three typical composite samples were manufactured and experiment research was developed. The results show that the composites with stable structural reinforcements prove excellent fatigue behavior, and the initial elastic modulus can be enhanced. The curvature of load‐bearing yarns affected the loading capacity, and the low curvature improve the structural integrity. The unstable structural reinforcements lead to the "fatigue strengthening" after a limited number of cycles, owing to the straightening of load‐bearing yarns. Reducing the curvature of yarns can effectively decrease the occurrence of initial cracks by altering the structural characteristics of reinforcements, which strengthens the bonding to improve fatigue resistance. Highlights: Stable reinforcements result in the excellent fatigue resistance of composites.Composites with stable reinforcements show the high consistency.Stable reinforcements affect structural integrity and durability of composites.The unstable structures of reinforcements lead to the "fatigue strengthening."
- Subjects
WOVEN composites; MATERIAL fatigue; FATIGUE limit; CARBON fibers; ELASTIC modulus; CARBON fiber-reinforced plastics; YARN
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2023, Vol 46, Issue 5, p1893
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.13971