Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam
Top-hat hollow-section beams are widely used in passenger vehicle’s body-in-white structure because of their proper shape for the montage process and also crashworthiness advantages. Hollow section beams with top-hat cross-section are mostly employed in structures like B-pillar, rocker sill, and roo...
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| Format: | Article |
| Language: | English |
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Semnan University
2021-04-01
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| Series: | Mechanics of Advanced Composite Structures |
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| Online Access: | https://macs.semnan.ac.ir/article_4468_03db51e71ae268ea517802e32eab2b3d.pdf |
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| _version_ | 1846119720316567552 |
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| author | Nima Zahedan Hamed Ahmadi Gholam Hossein Liaghat |
| author_facet | Nima Zahedan Hamed Ahmadi Gholam Hossein Liaghat |
| author_sort | Nima Zahedan |
| collection | DOAJ |
| description | Top-hat hollow-section beams are widely used in passenger vehicle’s body-in-white structure because of their proper shape for the montage process and also crashworthiness advantages. Hollow section beams with top-hat cross-section are mostly employed in structures like B-pillar, rocker sill, and roof rail which are engaged in side impact collisions. In the present investigation, simplified top-hat beams are developed based on a conventional B-pillar with the aim of improving energy absorption characteristics. Reinforcements are conducted by employing fiber glass-epoxy composite material. Three types of reinforced beams are presented which are either improved by composite-laminating, or by installation of an extra composite-made internal reinforcement. Experimental tests are performed in quasi-static three-point bending condition and based on results, a FE simulation is developed using LS-Dyna explicit code. Specimens are compared based on peak load, total energy absorption (TEA) and specific energy absorption (SEA) amounts. Also, to illustrate the extent of improvements, a not-reinforced top-hat beam is experimentally subjected under three-point bending test. Results depict a significant difference between the performance of beams reinforced by different methods. Comparison between specimens, considering their respective load-displacement diagram and crashworthiness characteristics, show that applying composite laminates to the inside surface of a hat-shaped beam would produce a beam with satisfying flexural behavior. |
| format | Article |
| id | doaj-art-b241d1c179fb48adb52cf61dd66b4503 |
| institution | Kabale University |
| issn | 2423-4826 2423-7043 |
| language | English |
| publishDate | 2021-04-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Mechanics of Advanced Composite Structures |
| spelling | doaj-art-b241d1c179fb48adb52cf61dd66b45032024-12-16T21:03:06ZengSemnan UniversityMechanics of Advanced Composite Structures2423-48262423-70432021-04-018114915610.22075/macs.2020.19910.12454468Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape BeamNima Zahedan0Hamed Ahmadi1Gholam Hossein Liaghat2Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, IranFaculty of Mechanical Engineering, Tarbiat Modares University, Tehran, IranFaculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran - School of Mechanical & Aerospace Engineering, Kingston University, London, United KingdomTop-hat hollow-section beams are widely used in passenger vehicle’s body-in-white structure because of their proper shape for the montage process and also crashworthiness advantages. Hollow section beams with top-hat cross-section are mostly employed in structures like B-pillar, rocker sill, and roof rail which are engaged in side impact collisions. In the present investigation, simplified top-hat beams are developed based on a conventional B-pillar with the aim of improving energy absorption characteristics. Reinforcements are conducted by employing fiber glass-epoxy composite material. Three types of reinforced beams are presented which are either improved by composite-laminating, or by installation of an extra composite-made internal reinforcement. Experimental tests are performed in quasi-static three-point bending condition and based on results, a FE simulation is developed using LS-Dyna explicit code. Specimens are compared based on peak load, total energy absorption (TEA) and specific energy absorption (SEA) amounts. Also, to illustrate the extent of improvements, a not-reinforced top-hat beam is experimentally subjected under three-point bending test. Results depict a significant difference between the performance of beams reinforced by different methods. Comparison between specimens, considering their respective load-displacement diagram and crashworthiness characteristics, show that applying composite laminates to the inside surface of a hat-shaped beam would produce a beam with satisfying flexural behavior.https://macs.semnan.ac.ir/article_4468_03db51e71ae268ea517802e32eab2b3d.pdftop-hat section beamcomposite reinforcementthree-point bending testls-dynaspecific energy absorption |
| spellingShingle | Nima Zahedan Hamed Ahmadi Gholam Hossein Liaghat Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam Mechanics of Advanced Composite Structures top-hat section beam composite reinforcement three-point bending test ls-dyna specific energy absorption |
| title | Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam |
| title_full | Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam |
| title_fullStr | Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam |
| title_full_unstemmed | Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam |
| title_short | Experimental and Numerical Investigation on the Flexural Behavior of Composite-Reinforced Top-Hat Shape Beam |
| title_sort | experimental and numerical investigation on the flexural behavior of composite reinforced top hat shape beam |
| topic | top-hat section beam composite reinforcement three-point bending test ls-dyna specific energy absorption |
| url | https://macs.semnan.ac.ir/article_4468_03db51e71ae268ea517802e32eab2b3d.pdf |
| work_keys_str_mv | AT nimazahedan experimentalandnumericalinvestigationontheflexuralbehaviorofcompositereinforcedtophatshapebeam AT hamedahmadi experimentalandnumericalinvestigationontheflexuralbehaviorofcompositereinforcedtophatshapebeam AT gholamhosseinliaghat experimentalandnumericalinvestigationontheflexuralbehaviorofcompositereinforcedtophatshapebeam |