Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation
This paper investigates the impact performance of a hybrid scale–tissue structure inspired by elasmoid fish scales. Acrylonitrile butadiene styrene (ABS) acted as the hard scales, whereas thermoplastic polyurethane (TPU) mimicked the soft tissue. Low-velocity impact scenarios were investigated using...
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MDPI AG
2025-03-01
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| author | Hari Bahadur Dura Paul J. Hazell Hongxu Wang |
| author_facet | Hari Bahadur Dura Paul J. Hazell Hongxu Wang |
| author_sort | Hari Bahadur Dura |
| collection | DOAJ |
| description | This paper investigates the impact performance of a hybrid scale–tissue structure inspired by elasmoid fish scales. Acrylonitrile butadiene styrene (ABS) acted as the hard scales, whereas thermoplastic polyurethane (TPU) mimicked the soft tissue. Low-velocity impact scenarios were investigated using a commercially available software, ANSYS LS-Dyna. The effect of indenter shape (conical, hemispherical, and flat head) was studied at three impact energy levels (50 J, 75 J, and 100 J). The specific energy absorbed for the conical indenter was the highest. The peak force for the conical, hemispherical, and flat-head indenters at an impact energy of 100 J was 6.0 kN, 5.4 kN, and 4.5 kN, respectively. The primary failure modes were shear failure and tensile breaking of the scales. The present study highlights the effect of indenter shape on the impact behaviour of a fish scale-inspired structure. |
| format | Article |
| id | doaj-art-5f47bd0d7eae45ea833aa28b5fb3deb1 |
| institution | OA Journals |
| issn | 2673-4605 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials Proceedings |
| spelling | doaj-art-5f47bd0d7eae45ea833aa28b5fb3deb12025-08-20T02:21:07ZengMDPI AGMaterials Proceedings2673-46052025-03-01201410.3390/materproc2025020004Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical InvestigationHari Bahadur Dura0Paul J. Hazell1Hongxu Wang2School of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaSchool of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaSchool of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaThis paper investigates the impact performance of a hybrid scale–tissue structure inspired by elasmoid fish scales. Acrylonitrile butadiene styrene (ABS) acted as the hard scales, whereas thermoplastic polyurethane (TPU) mimicked the soft tissue. Low-velocity impact scenarios were investigated using a commercially available software, ANSYS LS-Dyna. The effect of indenter shape (conical, hemispherical, and flat head) was studied at three impact energy levels (50 J, 75 J, and 100 J). The specific energy absorbed for the conical indenter was the highest. The peak force for the conical, hemispherical, and flat-head indenters at an impact energy of 100 J was 6.0 kN, 5.4 kN, and 4.5 kN, respectively. The primary failure modes were shear failure and tensile breaking of the scales. The present study highlights the effect of indenter shape on the impact behaviour of a fish scale-inspired structure.https://www.mdpi.com/2673-4605/20/1/4bio-inspired designimpactor shapesprotective structurecomposite structure |
| spellingShingle | Hari Bahadur Dura Paul J. Hazell Hongxu Wang Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation Materials Proceedings bio-inspired design impactor shapes protective structure composite structure |
| title | Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation |
| title_full | Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation |
| title_fullStr | Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation |
| title_full_unstemmed | Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation |
| title_short | Performance of Fish Scale-Inspired Armour Subjected to Impact Loading by Different Impactor Shapes: A Numerical Investigation |
| title_sort | performance of fish scale inspired armour subjected to impact loading by different impactor shapes a numerical investigation |
| topic | bio-inspired design impactor shapes protective structure composite structure |
| url | https://www.mdpi.com/2673-4605/20/1/4 |
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