Modelling the impact of hailstones on flat steel roofing membranes for residential buildings
Abstract Metal roof panels are commonly used on residential and commercial buildings. Steel panels exposed to hail have not yet been adequately tested for dent resistance. A finite element model (FEM) was used to analyze the entire test setup. To compare artificial hailstones with natural hailstones...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-24375-3 |
| _version_ | 1797984071206305792 |
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| author | Mehmet E. Uz |
| author_facet | Mehmet E. Uz |
| author_sort | Mehmet E. Uz |
| collection | DOAJ |
| description | Abstract Metal roof panels are commonly used on residential and commercial buildings. Steel panels exposed to hail have not yet been adequately tested for dent resistance. A finite element model (FEM) was used to analyze the entire test setup. To compare artificial hailstones with natural hailstones, which remained intact after impact, different steel sheets were struck by different sizes of artificial hailstones at different terminal velocities. The simulation and the material properties are assessed by comparing the experimental results with the FE model. An equation to predict the dent depth based on kinetic energy and stress is also presented. The results of this study provide a better understanding of the failure modes of hail and roof panels and their effects on dent resistance. In this study, the results of observations and numerical simulations agreed well with those of analytical models. The result is that the proposed equation overestimates the dent depths compared to the dent depths obtained with finite element models, while the equation leads to an underestimation of the dent depths found in the steel sheets. |
| first_indexed | 2024-04-11T06:55:48Z |
| format | Article |
| id | doaj.art-74e68526b5c74e9cb5fb1e5bf1fd7108 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T06:55:48Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-74e68526b5c74e9cb5fb1e5bf1fd71082022-12-22T04:39:02ZengNature PortfolioScientific Reports2045-23222022-11-0112111110.1038/s41598-022-24375-3Modelling the impact of hailstones on flat steel roofing membranes for residential buildingsMehmet E. Uz0Civil Engineering, Faculty of Engineering, Adnan Menderes UniversityAbstract Metal roof panels are commonly used on residential and commercial buildings. Steel panels exposed to hail have not yet been adequately tested for dent resistance. A finite element model (FEM) was used to analyze the entire test setup. To compare artificial hailstones with natural hailstones, which remained intact after impact, different steel sheets were struck by different sizes of artificial hailstones at different terminal velocities. The simulation and the material properties are assessed by comparing the experimental results with the FE model. An equation to predict the dent depth based on kinetic energy and stress is also presented. The results of this study provide a better understanding of the failure modes of hail and roof panels and their effects on dent resistance. In this study, the results of observations and numerical simulations agreed well with those of analytical models. The result is that the proposed equation overestimates the dent depths compared to the dent depths obtained with finite element models, while the equation leads to an underestimation of the dent depths found in the steel sheets.https://doi.org/10.1038/s41598-022-24375-3 |
| spellingShingle | Mehmet E. Uz Modelling the impact of hailstones on flat steel roofing membranes for residential buildings Scientific Reports |
| title | Modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| title_full | Modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| title_fullStr | Modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| title_full_unstemmed | Modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| title_short | Modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| title_sort | modelling the impact of hailstones on flat steel roofing membranes for residential buildings |
| url | https://doi.org/10.1038/s41598-022-24375-3 |
| work_keys_str_mv | AT mehmeteuz modellingtheimpactofhailstonesonflatsteelroofingmembranesforresidentialbuildings |