Details
| Original language | English |
|---|---|
| Title of host publication | 10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021 |
| Editors | Alper Ilki, Medine Ispir, Pinar Inci |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 2287-2297 |
| Number of pages | 11 |
| ISBN (print) | 9783030881658 |
| Publication status | Published - 27 Nov 2021 |
| Externally published | Yes |
| Event | 10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021 - Virtual, Online Duration: 8 Dec 2021 → 10 Dec 2021 |
Publication series
| Name | Lecture Notes in Civil Engineering |
|---|---|
| Volume | 198 LNCE |
| ISSN (Print) | 2366-2557 |
| ISSN (electronic) | 2366-2565 |
Abstract
An increasing number of existing steel structures are nowadays at the end of their service lives and most of them are subjected to fatigue loading. To tackle the fatigue problem, carbon fiber-reinforced polymer (CFRP) composites have been proposed and successfully used as an alternative and efficient technique to strengthen fatigue prone (damaged) steel structures. Experimental studies on different CFRP strengthening systems (bonded and unbonded) showed also that using prestressed unbonded CFRP reinforcement could further enhance the performance of the strengthening system and promotes crack arrest. Different models have been proposed to investigate fatigue crack growth of CFRP-reinforced steel structures. They mainly refer to empirical damage accumulation rules (S-N curves) and fatigue crack propagation models based on fracture mechanics concepts such as Paris’ law or similar. As an alternative approach in this paper, the computational assessment of Mode-I fatigue crack growth in the unreinforced and CFRP-reinforced (nonprestressed bonded and prestressed unbonded) steel plates are studied by using a cohesive zone model (CZM). The comparison between numerical and experimental results validated the finite element modelling, which will be further extended to the investigation of crack propagation under mixed mode condition.
Keywords
- Carbon fiber-reinforced polymer (CFRP) strengthening, Cohesive zone model, Crack propagation, Fatigue loading, Finite element method
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
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10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021. ed. / Alper Ilki; Medine Ispir; Pinar Inci. Springer Science and Business Media Deutschland GmbH, 2021. p. 2287-2297 (Lecture Notes in Civil Engineering; Vol. 198 LNCE).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Computational Investigation of Mode-I Fatigue Crack Growth in CFRP-Strengthened Steel Plates with a Cohesive Zone Model
AU - Mohajer, Mana
AU - Bocciarelli, Massimiliano
AU - Colombi, Pierluigi
AU - Hosseini, Ardalan
AU - Nussbaumer, Alain
AU - Ghafoori, Elyas
N1 - Funding Information: Acknowledgements. The research grant provided by Fondazione Fratelli Confalonieri is gratefully acknowledged by the first author. The financial support provided by Politecnico di Milano is also acknowledged. Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021/11/27
Y1 - 2021/11/27
N2 - An increasing number of existing steel structures are nowadays at the end of their service lives and most of them are subjected to fatigue loading. To tackle the fatigue problem, carbon fiber-reinforced polymer (CFRP) composites have been proposed and successfully used as an alternative and efficient technique to strengthen fatigue prone (damaged) steel structures. Experimental studies on different CFRP strengthening systems (bonded and unbonded) showed also that using prestressed unbonded CFRP reinforcement could further enhance the performance of the strengthening system and promotes crack arrest. Different models have been proposed to investigate fatigue crack growth of CFRP-reinforced steel structures. They mainly refer to empirical damage accumulation rules (S-N curves) and fatigue crack propagation models based on fracture mechanics concepts such as Paris’ law or similar. As an alternative approach in this paper, the computational assessment of Mode-I fatigue crack growth in the unreinforced and CFRP-reinforced (nonprestressed bonded and prestressed unbonded) steel plates are studied by using a cohesive zone model (CZM). The comparison between numerical and experimental results validated the finite element modelling, which will be further extended to the investigation of crack propagation under mixed mode condition.
AB - An increasing number of existing steel structures are nowadays at the end of their service lives and most of them are subjected to fatigue loading. To tackle the fatigue problem, carbon fiber-reinforced polymer (CFRP) composites have been proposed and successfully used as an alternative and efficient technique to strengthen fatigue prone (damaged) steel structures. Experimental studies on different CFRP strengthening systems (bonded and unbonded) showed also that using prestressed unbonded CFRP reinforcement could further enhance the performance of the strengthening system and promotes crack arrest. Different models have been proposed to investigate fatigue crack growth of CFRP-reinforced steel structures. They mainly refer to empirical damage accumulation rules (S-N curves) and fatigue crack propagation models based on fracture mechanics concepts such as Paris’ law or similar. As an alternative approach in this paper, the computational assessment of Mode-I fatigue crack growth in the unreinforced and CFRP-reinforced (nonprestressed bonded and prestressed unbonded) steel plates are studied by using a cohesive zone model (CZM). The comparison between numerical and experimental results validated the finite element modelling, which will be further extended to the investigation of crack propagation under mixed mode condition.
KW - Carbon fiber-reinforced polymer (CFRP) strengthening
KW - Cohesive zone model
KW - Crack propagation
KW - Fatigue loading
KW - Finite element method
UR - http://www.scopus.com/inward/record.url?scp=85121923050&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-88166-5_198
DO - 10.1007/978-3-030-88166-5_198
M3 - Conference contribution
AN - SCOPUS:85121923050
SN - 9783030881658
T3 - Lecture Notes in Civil Engineering
SP - 2287
EP - 2297
BT - 10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021
A2 - Ilki, Alper
A2 - Ispir, Medine
A2 - Inci, Pinar
PB - Springer Science and Business Media Deutschland GmbH
T2 - 10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021
Y2 - 8 December 2021 through 10 December 2021
ER -