Abstract
Composite fiber patching techniques have been considered as alternatives to traditional methods of fatigue crack repair in steel structures. In this study, a series of experiments were conducted to verify the effectiveness of the carbon fiber reinforced polymer (CFRP) plates on preventing fatigue crack propagation and extending fatigue life of steel plates. Specimens were steel plates with center holes and different lengths of artificial cracks, representing the degree of damage. They were repaired by notch filling and double-sided bonding. Crack propagation was monitored by "beach marking" technique. Fatigue lives and failure modes were observed. Experimental results show that the application of composite patches substantially reduces the crack growth rate and prolongs fatigue life. The application of CFRP repair to cracked plates extended the remaining fatigue life to various degrees with different initial crack lengths.
| Original language | English |
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| Publication status | Published - 2012 |
| Externally published | Yes |
| Event | 6th International Conference on FRP Composites in Civil Engineering, CICE 2012 - Rome, Italy Duration: 13 Jun 2012 → 15 Jun 2012 |
Conference
| Conference | 6th International Conference on FRP Composites in Civil Engineering, CICE 2012 |
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| Country/Territory | Italy |
| City | Rome |
| Period | 13/06/12 → 15/06/12 |
Keywords
- Carbon fibre reinforced polymer plate
- Fatigue damage
- Fatigue test
- Steel plate
ASJC Scopus subject areas
- Polymers and Plastics
- Civil and Structural Engineering