Crushing performance of bioinspired hierarchical tapered structures
This paper introduces a new type of energy-absorbing hierarchical tapered structure, mimicking the hierarchical architecture of barnacle. The proposed structures are designed by iteratively incorporating sub-tapered tubes at the junctions of primary ribs aiming to enhance the crashworthiness perform...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523010274 |
| _version_ | 1797301567254167552 |
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| author | Xinmei Xiang Chenkun Xiao Guoxing Lu Yi Min Xie Miaochang Zhu Ngoc San Ha |
| author_facet | Xinmei Xiang Chenkun Xiao Guoxing Lu Yi Min Xie Miaochang Zhu Ngoc San Ha |
| author_sort | Xinmei Xiang |
| collection | DOAJ |
| description | This paper introduces a new type of energy-absorbing hierarchical tapered structure, mimicking the hierarchical architecture of barnacle. The proposed structures are designed by iteratively incorporating sub-tapered tubes at the junctions of primary ribs aiming to enhance the crashworthiness performance. The finite element models of the proposed structures are constructed in Abaqus software and validated using experimental testing. The effects of the geometrical parameters including the number of substructures and the external-to-internal wall thickness ratio on the energy absorption characteristics of the proposed structures are investigated. The results demonstrate that as the number of substructures increases, the specific energy absorption (SEA) and mean crushing force of the proposed design show a significant improvement. Specially, the SEA of the proposed structures with four substructures can reach 32.78 kJ/kg, which is 85.8 % higher than the conventional tapered tube. Additionally, decreasing the ratio of external to internal wall thickness leads to enhanced performance. After optimizing the wall thickness ratio, the maximum SEA can reach 40.87 kJ/kg, which is 26.0 % higher than that before optimization. To complement the findings, a theoretical study is presented, which exhibits excellent agreement with the numerical results, further validating the effectiveness of the proposed design. This study highlights the potential of incorporating hierarchical and tapered features into tapered structures, offering promising prospects for advancements in energy absorption technology across diverse industries. |
| first_indexed | 2024-03-07T23:24:26Z |
| format | Article |
| id | doaj.art-08097ef5e94a48fa8fe7f398086a37ea |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-03-07T23:24:26Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-08097ef5e94a48fa8fe7f398086a37ea2024-02-21T05:23:46ZengElsevierMaterials & Design0264-12752024-02-01238112611Crushing performance of bioinspired hierarchical tapered structuresXinmei Xiang0Chenkun Xiao1Guoxing Lu2Yi Min Xie3Miaochang Zhu4Ngoc San Ha5School of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaFaculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Melbourne 3122, AustraliaCentre for Innovative Structures and Materials, School of Engineering, RMIT University, Melbourne 3001, AustraliaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, China; Corresponding authors.Centre for Innovative Structures and Materials, School of Engineering, RMIT University, Melbourne 3001, Australia; Corresponding authors.This paper introduces a new type of energy-absorbing hierarchical tapered structure, mimicking the hierarchical architecture of barnacle. The proposed structures are designed by iteratively incorporating sub-tapered tubes at the junctions of primary ribs aiming to enhance the crashworthiness performance. The finite element models of the proposed structures are constructed in Abaqus software and validated using experimental testing. The effects of the geometrical parameters including the number of substructures and the external-to-internal wall thickness ratio on the energy absorption characteristics of the proposed structures are investigated. The results demonstrate that as the number of substructures increases, the specific energy absorption (SEA) and mean crushing force of the proposed design show a significant improvement. Specially, the SEA of the proposed structures with four substructures can reach 32.78 kJ/kg, which is 85.8 % higher than the conventional tapered tube. Additionally, decreasing the ratio of external to internal wall thickness leads to enhanced performance. After optimizing the wall thickness ratio, the maximum SEA can reach 40.87 kJ/kg, which is 26.0 % higher than that before optimization. To complement the findings, a theoretical study is presented, which exhibits excellent agreement with the numerical results, further validating the effectiveness of the proposed design. This study highlights the potential of incorporating hierarchical and tapered features into tapered structures, offering promising prospects for advancements in energy absorption technology across diverse industries.http://www.sciencedirect.com/science/article/pii/S0264127523010274Energy absorptionTapered tubeCorrugated structuresHierarchical structuresAxial loading |
| spellingShingle | Xinmei Xiang Chenkun Xiao Guoxing Lu Yi Min Xie Miaochang Zhu Ngoc San Ha Crushing performance of bioinspired hierarchical tapered structures Materials & Design Energy absorption Tapered tube Corrugated structures Hierarchical structures Axial loading |
| title | Crushing performance of bioinspired hierarchical tapered structures |
| title_full | Crushing performance of bioinspired hierarchical tapered structures |
| title_fullStr | Crushing performance of bioinspired hierarchical tapered structures |
| title_full_unstemmed | Crushing performance of bioinspired hierarchical tapered structures |
| title_short | Crushing performance of bioinspired hierarchical tapered structures |
| title_sort | crushing performance of bioinspired hierarchical tapered structures |
| topic | Energy absorption Tapered tube Corrugated structures Hierarchical structures Axial loading |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523010274 |
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