Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP
The using up of fiber reinforced polymer (FRP) in retrofit and repair in industrial fields is extremely efficient and also capable in increasing service life cycle of the structures. In this paper the investigation on the FRP repairing on crack surface of S235 steel plate which is subjected to tensi...
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| Format: | Article |
| Language: | English |
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Pouyan Press
2022-07-01
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| Series: | Computational Engineering and Physical Modeling |
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| Online Access: | https://www.jcepm.com/article_163715_460bf70b5e05850eaf04a400b09e9d07.pdf |
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| author | K.Y. Incharashree R.P.N. Prajwal K.K. Kiran CSMV Prasad |
| author_facet | K.Y. Incharashree R.P.N. Prajwal K.K. Kiran CSMV Prasad |
| author_sort | K.Y. Incharashree |
| collection | DOAJ |
| description | The using up of fiber reinforced polymer (FRP) in retrofit and repair in industrial fields is extremely efficient and also capable in increasing service life cycle of the structures. In this paper the investigation on the FRP repairing on crack surface of S235 steel plate which is subjected to tension loading has been carried out. The variation in stress intensity factor (SI) around the crack on the surface of steel plate, is analytically investigated and crack growth rate for steel plate was estimated by considering the stress intensity factor value in the Paris-Erdogan equation. Results recommended that laminate made of carbon fiber reinforced polymer (CFRP) repaired on the crack surface is the most effective one which showed decreased stress intensity value of 328.9Mpa.mm0.5, whereas the unreinforced steel plate with SIF value 389.29Mpa.mm0.5. Compare to the glass FRP with high elasticity modulus, it showed decrease in SIF value 326.95Mpa.mm0.5, results showed that 15-20% reduction in stress intensity (SI) factor when it compares with bare steel plate and with FRP reinforced plate. Finally results showed that reinforcement of FRP on the cracked surface of the steel structure yield good results as increasing its fatigue life by decreasing the expansion of crack at its tip. |
| first_indexed | 2024-03-12T21:03:45Z |
| format | Article |
| id | doaj.art-303d604f6ba74475b44560c268edbac1 |
| institution | Directory Open Access Journal |
| issn | 2588-6959 |
| language | English |
| last_indexed | 2024-03-12T21:03:45Z |
| publishDate | 2022-07-01 |
| publisher | Pouyan Press |
| record_format | Article |
| series | Computational Engineering and Physical Modeling |
| spelling | doaj.art-303d604f6ba74475b44560c268edbac12023-07-30T23:12:16ZengPouyan PressComputational Engineering and Physical Modeling2588-69592022-07-0153243710.22115/cepm.2022.351723.1216163715Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRPK.Y. Incharashree0R.P.N. Prajwal1K.K. Kiran2CSMV Prasad3M.Tech. Student, Department of Civil Engineering, SJB Institute of Technology Kengeri Bangalore, Visvesvaraya Technological University, Karnataka indin-560060, IndiaAssistant Professor, Department of Civil Engineering, SJB Institute of Technology Kengeri Bangalore, Visvesvaraya Technological University, Karnataka indin-560060, IndiaAssociate Professor, Department of Civil Engineering, SJB Institute of Technology Kengeri Bangalore, Visvesvaraya Technological University, Karnataka indin-560060, IndiaProfessor and Head of the Department, Department of Civil Engineering, SJB Institute of Technology Kengeri Bangalore, Visvesvaraya Technological University, Karnataka indin-560060, IndiaThe using up of fiber reinforced polymer (FRP) in retrofit and repair in industrial fields is extremely efficient and also capable in increasing service life cycle of the structures. In this paper the investigation on the FRP repairing on crack surface of S235 steel plate which is subjected to tension loading has been carried out. The variation in stress intensity factor (SI) around the crack on the surface of steel plate, is analytically investigated and crack growth rate for steel plate was estimated by considering the stress intensity factor value in the Paris-Erdogan equation. Results recommended that laminate made of carbon fiber reinforced polymer (CFRP) repaired on the crack surface is the most effective one which showed decreased stress intensity value of 328.9Mpa.mm0.5, whereas the unreinforced steel plate with SIF value 389.29Mpa.mm0.5. Compare to the glass FRP with high elasticity modulus, it showed decrease in SIF value 326.95Mpa.mm0.5, results showed that 15-20% reduction in stress intensity (SI) factor when it compares with bare steel plate and with FRP reinforced plate. Finally results showed that reinforcement of FRP on the cracked surface of the steel structure yield good results as increasing its fatigue life by decreasing the expansion of crack at its tip.https://www.jcepm.com/article_163715_460bf70b5e05850eaf04a400b09e9d07.pdffatigue failurecrack growthrepair and retrofittingfiber laminatecarbon fiber reinforced |
| spellingShingle | K.Y. Incharashree R.P.N. Prajwal K.K. Kiran CSMV Prasad Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP Computational Engineering and Physical Modeling fatigue failure crack growth repair and retrofitting fiber laminate carbon fiber reinforced |
| title | Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP |
| title_full | Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP |
| title_fullStr | Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP |
| title_full_unstemmed | Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP |
| title_short | Analytical Study of Fatigue Crack Growth Behavior of Steel Structure Reinforced with FRP |
| title_sort | analytical study of fatigue crack growth behavior of steel structure reinforced with frp |
| topic | fatigue failure crack growth repair and retrofitting fiber laminate carbon fiber reinforced |
| url | https://www.jcepm.com/article_163715_460bf70b5e05850eaf04a400b09e9d07.pdf |
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