Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis
These elements are innovative and of interest to many researchers for the reinforcement of wooden elements. For the reinforced beam elements, the effect of the reinforcement factor, FRP and steel elastic modulus or FRP and steel arrangement of the reinforcement on the performance of the flexural ele...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/9/2062 |
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| author | Agnieszka Wdowiak-Postulak Marek Wieruszewski František Bahleda Jozef Prokop Janusz Brol |
| author_facet | Agnieszka Wdowiak-Postulak Marek Wieruszewski František Bahleda Jozef Prokop Janusz Brol |
| author_sort | Agnieszka Wdowiak-Postulak |
| collection | DOAJ |
| description | These elements are innovative and of interest to many researchers for the reinforcement of wooden elements. For the reinforced beam elements, the effect of the reinforcement factor, FRP and steel elastic modulus or FRP and steel arrangement of the reinforcement on the performance of the flexural elements was determined, followed by reading the load-displacement diagram of the reinforced beam elements. The finite element model was then developed and verified with the experimental results, which was mainly related to the fact that the general theory took into account the typical tensile failure mode, which can be used to predict the flexural strength of reinforced timber beams. From the tests, it was determined that reinforced timber beam elements had relatively ductile flexural strengths up to brittle tension for unreinforced elements. As for the reinforcements of FRP, the highest increase in load-bearing capacity was for carbon mats at 52.47%, with a reinforcement grade of 0.43%, while the lowest was for glass mats at 16.62% with a reinforcement grade of 0.22%. Basalt bars achieved the highest stiffness, followed by glass mats. Taking into account all the reinforcements used, the highest stiffness was demonstrated by the tests of the effectiveness of the reinforcement using 3 mm thick steel plates. For this configuration with a reinforcement percentage of 10%, this increase in load capacity was 79.48% and stiffness was 31.08%. The difference between the experimental and numerical results was within 3.62–27.36%, respectively. |
| first_indexed | 2024-03-11T04:08:44Z |
| format | Article |
| id | doaj.art-07fb49e4eb094d75a6a268278cbeddd5 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T04:08:44Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-07fb49e4eb094d75a6a268278cbeddd52023-11-17T23:34:42ZengMDPI AGPolymers2073-43602023-04-01159206210.3390/polym15092062Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical AnalysisAgnieszka Wdowiak-Postulak0Marek Wieruszewski1František Bahleda2Jozef Prokop3Janusz Brol4Department of Strength of Materials and Building Structures, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, PolandDepartment Mechanical Wood Technology, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandFaculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaFaculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaFaculty of Civil Engineering, Silesian University of Technology, 44-100 Gliwice, PolandThese elements are innovative and of interest to many researchers for the reinforcement of wooden elements. For the reinforced beam elements, the effect of the reinforcement factor, FRP and steel elastic modulus or FRP and steel arrangement of the reinforcement on the performance of the flexural elements was determined, followed by reading the load-displacement diagram of the reinforced beam elements. The finite element model was then developed and verified with the experimental results, which was mainly related to the fact that the general theory took into account the typical tensile failure mode, which can be used to predict the flexural strength of reinforced timber beams. From the tests, it was determined that reinforced timber beam elements had relatively ductile flexural strengths up to brittle tension for unreinforced elements. As for the reinforcements of FRP, the highest increase in load-bearing capacity was for carbon mats at 52.47%, with a reinforcement grade of 0.43%, while the lowest was for glass mats at 16.62% with a reinforcement grade of 0.22%. Basalt bars achieved the highest stiffness, followed by glass mats. Taking into account all the reinforcements used, the highest stiffness was demonstrated by the tests of the effectiveness of the reinforcement using 3 mm thick steel plates. For this configuration with a reinforcement percentage of 10%, this increase in load capacity was 79.48% and stiffness was 31.08%. The difference between the experimental and numerical results was within 3.62–27.36%, respectively.https://www.mdpi.com/2073-4360/15/9/2062timber beamssteel platesFRP compositesstrengtheningnumerical model |
| spellingShingle | Agnieszka Wdowiak-Postulak Marek Wieruszewski František Bahleda Jozef Prokop Janusz Brol Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis Polymers timber beams steel plates FRP composites strengthening numerical model |
| title | Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis |
| title_full | Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis |
| title_fullStr | Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis |
| title_full_unstemmed | Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis |
| title_short | Fibre-Reinforced Polymers and Steel for the Reinforcement of Wooden Elements—Experimental and Numerical Analysis |
| title_sort | fibre reinforced polymers and steel for the reinforcement of wooden elements experimental and numerical analysis |
| topic | timber beams steel plates FRP composites strengthening numerical model |
| url | https://www.mdpi.com/2073-4360/15/9/2062 |
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