Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading
Glass Fiber Reinforced Polymer (GFRP) beams have gained attention due to their promising mechanical properties and potential for structural applications. Combining GFRP core and encasing materials creates a composite beam with superior mechanical properties. This paper describes the testing encased...
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| Format: | Article |
| Language: | English |
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D. G. Pylarinos
2023-12-01
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| Series: | Engineering, Technology & Applied Science Research |
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| Online Access: | https://etasr.com/index.php/ETASR/article/view/6424 |
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| author | Teghreed H. Ibrahim Ihsan A. S. Alshaarbaf Abbas A. Allawi Nazar K. Oukaili Ayman El-Zohairy AbdulMuttalab I. Said |
| author_facet | Teghreed H. Ibrahim Ihsan A. S. Alshaarbaf Abbas A. Allawi Nazar K. Oukaili Ayman El-Zohairy AbdulMuttalab I. Said |
| author_sort | Teghreed H. Ibrahim |
| collection | DOAJ |
| description | Glass Fiber Reinforced Polymer (GFRP) beams have gained attention due to their promising mechanical properties and potential for structural applications. Combining GFRP core and encasing materials creates a composite beam with superior mechanical properties. This paper describes the testing encased GFRP beams as composite Reinforced Concrete (RC) beams under low-velocity impact load. Theoretical analysis was used with practical results to simulate the tested beams' behavior and predict the generated energies during the impact loading. The impact response was investigated using repeated drops of 42.5 kg falling mass from various heights. An analysis was performed using accelerometer readings to calculate the generalized inertial load. The integrated acceleration record and the measured hammer load vs. time data were utilized to determine the generalized bending load and fracture energy. Four forms of energy were calculated at the maximum load. The total energy was calculated and divided into two parts: The first part was gained by the beam's rotational kinetic energy, the bending energy in the specimen, and the elastic strain energy. The second part was the hammer's kinetic energy before striking the beam. The analytical results showed that the bending energy was less than its rotational kinetic energy for the encased GFRP beams and the reference specimens. In contrast, the encased steel beams had high bending energy due to the higher impact load and deflection. Strain energy recorded lower energy values for all specimens with higher bending energy. There is a good agreement between the tested and the calculated inertial and bending force for all beams. The ratio of inertia force to the total impact load for the encased GFRP and encased steel beams to the reference beam is about 9% and 5%, respectively.
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| first_indexed | 2024-03-09T02:40:19Z |
| format | Article |
| id | doaj.art-5dcc751366dd4fb0b4c95cc2a16ac39c |
| institution | Directory Open Access Journal |
| issn | 2241-4487 1792-8036 |
| language | English |
| last_indexed | 2024-03-09T02:40:19Z |
| publishDate | 2023-12-01 |
| publisher | D. G. Pylarinos |
| record_format | Article |
| series | Engineering, Technology & Applied Science Research |
| spelling | doaj.art-5dcc751366dd4fb0b4c95cc2a16ac39c2023-12-06T05:56:37ZengD. G. PylarinosEngineering, Technology & Applied Science Research2241-44871792-80362023-12-0113610.48084/etasr.6424Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact LoadingTeghreed H. Ibrahim0Ihsan A. S. Alshaarbaf 1Abbas A. Allawi2Nazar K. Oukaili3Ayman El-Zohairy4AbdulMuttalab I. Said5Department of Civil Engineering, University of Baghdad, IraqCivil Engineering Department, Al-Esraa University College, IraqDepartment of Civil Engineering, University of Baghdad, IraqDepartment of Civil Engineering, University of Baghdad, IraqDepartment of Engineering and Technology, Texas A&M University-Commerce, TX, USADepartment of Civil Engineering, University of Baghdad, IraqGlass Fiber Reinforced Polymer (GFRP) beams have gained attention due to their promising mechanical properties and potential for structural applications. Combining GFRP core and encasing materials creates a composite beam with superior mechanical properties. This paper describes the testing encased GFRP beams as composite Reinforced Concrete (RC) beams under low-velocity impact load. Theoretical analysis was used with practical results to simulate the tested beams' behavior and predict the generated energies during the impact loading. The impact response was investigated using repeated drops of 42.5 kg falling mass from various heights. An analysis was performed using accelerometer readings to calculate the generalized inertial load. The integrated acceleration record and the measured hammer load vs. time data were utilized to determine the generalized bending load and fracture energy. Four forms of energy were calculated at the maximum load. The total energy was calculated and divided into two parts: The first part was gained by the beam's rotational kinetic energy, the bending energy in the specimen, and the elastic strain energy. The second part was the hammer's kinetic energy before striking the beam. The analytical results showed that the bending energy was less than its rotational kinetic energy for the encased GFRP beams and the reference specimens. In contrast, the encased steel beams had high bending energy due to the higher impact load and deflection. Strain energy recorded lower energy values for all specimens with higher bending energy. There is a good agreement between the tested and the calculated inertial and bending force for all beams. The ratio of inertia force to the total impact load for the encased GFRP and encased steel beams to the reference beam is about 9% and 5%, respectively. https://etasr.com/index.php/ETASR/article/view/6424GFRPcomposite beamimpact loadinginertial loadkinetic energyenergy-dispersive |
| spellingShingle | Teghreed H. Ibrahim Ihsan A. S. Alshaarbaf Abbas A. Allawi Nazar K. Oukaili Ayman El-Zohairy AbdulMuttalab I. Said Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading Engineering, Technology & Applied Science Research GFRP composite beam impact loading inertial load kinetic energy energy-dispersive |
| title | Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading |
| title_full | Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading |
| title_fullStr | Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading |
| title_full_unstemmed | Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading |
| title_short | Theoretical Analysis of Composite RC Beams with Pultruded GFRP Beams subjected to Impact Loading |
| title_sort | theoretical analysis of composite rc beams with pultruded gfrp beams subjected to impact loading |
| topic | GFRP composite beam impact loading inertial load kinetic energy energy-dispersive |
| url | https://etasr.com/index.php/ETASR/article/view/6424 |
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