Fatigue performance of open-hole structural elements reinforced by CFRP overlays
Authors:
- Paweł J. Romanowicz,
- Bogdan Szybiński,
- Mateusz Wygoda
Abstract
The main aim of the study is to improve a strengthening procedure of structural elements, based on the application of CFRP overlays and adhesive joints, which allows for an increase in the fatigue life from low-cycle fatigue to at least a high-cycle fatigue regime. In experimental investigations, the effectiveness of three different adhesives is analysed which differ in chemical compositions and stiffness modulus (S&P Resin 220 Epoxy adhesive, 3M Scotch-Weld DP6310NS, and Loctite HY 4080 GY). The experimental fatigue tests (stress ratio R = 0.1) are performed for flat specimens with a square hole with rounded corners reinforced by CFRP overlays. The maximal nominal tensile load is set close to the Yield limit. It is observed that fatigue strength mainly depends on the applied adhesives and the increase of fatigue strength of the reinforced sample varies in the range FI = 48%–1000 % with respect to the fatigue life of the bare sample. The highest efficiency of fatigue performance is reached for Loctite HY 4080 GY for which the average fatigue life increase is about FI = 890 %.
- Record ID
- CUT2eab58d9ae894239a5ab5bd76be7fc9f
- In press
- Yes
- Publication categories
- ;
- Author
- Journal series
- International Journal of Adhesion and Adhesives, ISSN 0143-7496, e-ISSN 1879-0127
- Issue year
- 2023
- Pages
- [1-50]
- Article number
- 103606
- Other elements of collation
- rys.; tab.; wykr.; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Article in press
- Keywords in English
- reinforcement, adhesive joints, fatigue tests, notched structures, digital image correlation
- ASJC Classification
- ; ;
- DOI
- DOI:10.1016/j.ijadhadh.2023.103606 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S0143749623002865 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT2eab58d9ae894239a5ab5bd76be7fc9f/
- URN
urn:pkr-prod:CUT2eab58d9ae894239a5ab5bd76be7fc9f
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.