Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials
Functionally graded porous materials (FGPMs) are porous structures with a porosity gradient distributed over the entire volume. They have many applications in the aerospace, marine, biomedical, automotive, and shipbuilding industries. High strength to weight and excellent energy absorption is the mo...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2022-01-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_171287_15373b577dad60dc2d823d4dae9b6792.pdf |
| _version_ | 1797337689019645952 |
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| author | Emad Njim Sadeq Bakhi Muhannad Al-Waily |
| author_facet | Emad Njim Sadeq Bakhi Muhannad Al-Waily |
| author_sort | Emad Njim |
| collection | DOAJ |
| description | Functionally graded porous materials (FGPMs) are porous structures with a porosity gradient distributed over the entire volume. They have many applications in the aerospace, marine, biomedical, automotive, and shipbuilding industries. High strength to weight and excellent energy absorption is the most important features that make these structures unique. In this paper, the flexural properties of simply-supported sandwich beams with functionally graded porous core under flexural load were evaluated experimentally and numerically based on various parameters. A three-point bending test for 3D printed sandwich specimens with porous metal core bonded with aluminum face sheets using various porosity parameters and core heights has been performed to measure the peak load and maximum deflection and explore the sandwich structure's strength. To validate the accuracy of the experimental solution, a finite element analysis (FEA) is carried out using ANSYS 2021 R1 software. Tests and FEM show that the sandwich beam behavior is closely related to porosity, power-law index, and FG porous metal core thicknesses. Experimental results indicated that at a porosity ratio of 10 %, FG core height 10 mm the maximum bending load was 573 N and maximum deflection 13.8 mm respectively. By increasing porosity to become 30% using the same geometrical parameters, the bending load was reduced by 15.4 % while the deflection exhibited a 1.4 % increase. The Numerical results for the three-point bending are compared with experimental measurements, showing a fair agreement with a maximum discrepancy of 15%. |
| first_indexed | 2024-03-08T09:17:13Z |
| format | Article |
| id | doaj.art-6f7de895dcce406a8233e4f8496e901c |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T09:17:13Z |
| publishDate | 2022-01-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-6f7de895dcce406a8233e4f8496e901c2024-01-31T14:27:40ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582022-01-0140113714710.30684/etj.v40i1.2184171287Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous MaterialsEmad Njim0Sadeq Bakhi1Muhannad Al-Waily2University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.University of Kufa, Najaf, Iraq.Functionally graded porous materials (FGPMs) are porous structures with a porosity gradient distributed over the entire volume. They have many applications in the aerospace, marine, biomedical, automotive, and shipbuilding industries. High strength to weight and excellent energy absorption is the most important features that make these structures unique. In this paper, the flexural properties of simply-supported sandwich beams with functionally graded porous core under flexural load were evaluated experimentally and numerically based on various parameters. A three-point bending test for 3D printed sandwich specimens with porous metal core bonded with aluminum face sheets using various porosity parameters and core heights has been performed to measure the peak load and maximum deflection and explore the sandwich structure's strength. To validate the accuracy of the experimental solution, a finite element analysis (FEA) is carried out using ANSYS 2021 R1 software. Tests and FEM show that the sandwich beam behavior is closely related to porosity, power-law index, and FG porous metal core thicknesses. Experimental results indicated that at a porosity ratio of 10 %, FG core height 10 mm the maximum bending load was 573 N and maximum deflection 13.8 mm respectively. By increasing porosity to become 30% using the same geometrical parameters, the bending load was reduced by 15.4 % while the deflection exhibited a 1.4 % increase. The Numerical results for the three-point bending are compared with experimental measurements, showing a fair agreement with a maximum discrepancy of 15%.https://etj.uotechnology.edu.iq/article_171287_15373b577dad60dc2d823d4dae9b6792.pdfsandwich beamfunctionally graded porous materialspla corethree-point bendingfea |
| spellingShingle | Emad Njim Sadeq Bakhi Muhannad Al-Waily Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials Engineering and Technology Journal sandwich beam functionally graded porous materials pla core three-point bending fea |
| title | Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials |
| title_full | Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials |
| title_fullStr | Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials |
| title_full_unstemmed | Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials |
| title_short | Experimental and Numerical Flexural Properties of Sandwich Structure with Functionally Graded Porous Materials |
| title_sort | experimental and numerical flexural properties of sandwich structure with functionally graded porous materials |
| topic | sandwich beam functionally graded porous materials pla core three-point bending fea |
| url | https://etj.uotechnology.edu.iq/article_171287_15373b577dad60dc2d823d4dae9b6792.pdf |
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