Design and testing of a DNA-like torsional structure for energy absorption
A torsional structure with a DNA-like chiral core is proposed and investigated for energy absorption with a frictional mechanism. The DNA-like chiral core can generate a twisting deformation under axial loading. Based on this behavior, the proposed torsional structure exhibits a unique energy absorp...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-02-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523000576 |
| _version_ | 1811158449658003456 |
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| author | Suian Wang Chuang Deng Olanrewaju Ojo Nan Yang Bamidele Akinrinlola Jared Kozub Nan Wu |
| author_facet | Suian Wang Chuang Deng Olanrewaju Ojo Nan Yang Bamidele Akinrinlola Jared Kozub Nan Wu |
| author_sort | Suian Wang |
| collection | DOAJ |
| description | A torsional structure with a DNA-like chiral core is proposed and investigated for energy absorption with a frictional mechanism. The DNA-like chiral core can generate a twisting deformation under axial loading. Based on this behavior, the proposed torsional structure exhibits a unique energy absorption capacity by structural collapse and torsion-induced friction. Additive manufacturing is used to prepare five sets of metal specimens with the new DNA-like chiral core structure. A series of quasi-static compression experiments are carried out to obtain the compressive stress–strain relationship and induced twisting angle of our designed structure. The experimental results show distinct energy absorption mechanism and effectiveness of the design which are subsequently used to validate the finite element simulation. The results of the experiment and numerical analysis show that the torsional friction between the top cap of the structure and the outer block can absorb around 10% of the total compression energy input. Furthermore, geometry parametric studies are conducted to investigate the effects of design parameters on energy absorption property of the proposed structure. |
| first_indexed | 2024-04-10T05:24:52Z |
| format | Article |
| id | doaj.art-7d8c9d6b56fa47fd9fbfb687a2037a37 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-10T05:24:52Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-7d8c9d6b56fa47fd9fbfb687a2037a372023-03-08T04:13:39ZengElsevierMaterials & Design0264-12752023-02-01226111642Design and testing of a DNA-like torsional structure for energy absorptionSuian Wang0Chuang Deng1Olanrewaju Ojo2Nan Yang3Bamidele Akinrinlola4Jared Kozub5Nan Wu6Department of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba R3T 5V6, CanadaDepartment of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba R3T 5V6, CanadaDepartment of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba R3T 5V6, CanadaIntelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China; Corresponding authors.Precision ADM, Unit A - 1595 Buffalo Place, Winnipeg, MB, Manitoba R3T 1L9, CanadaPrecision ADM, Unit A - 1595 Buffalo Place, Winnipeg, MB, Manitoba R3T 1L9, CanadaDepartment of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba R3T 5V6, Canada; Corresponding authors.A torsional structure with a DNA-like chiral core is proposed and investigated for energy absorption with a frictional mechanism. The DNA-like chiral core can generate a twisting deformation under axial loading. Based on this behavior, the proposed torsional structure exhibits a unique energy absorption capacity by structural collapse and torsion-induced friction. Additive manufacturing is used to prepare five sets of metal specimens with the new DNA-like chiral core structure. A series of quasi-static compression experiments are carried out to obtain the compressive stress–strain relationship and induced twisting angle of our designed structure. The experimental results show distinct energy absorption mechanism and effectiveness of the design which are subsequently used to validate the finite element simulation. The results of the experiment and numerical analysis show that the torsional friction between the top cap of the structure and the outer block can absorb around 10% of the total compression energy input. Furthermore, geometry parametric studies are conducted to investigate the effects of design parameters on energy absorption property of the proposed structure.http://www.sciencedirect.com/science/article/pii/S0264127523000576DNA-likeTorsional structureTwisting deformationAdditive manufacturingFinite element model |
| spellingShingle | Suian Wang Chuang Deng Olanrewaju Ojo Nan Yang Bamidele Akinrinlola Jared Kozub Nan Wu Design and testing of a DNA-like torsional structure for energy absorption Materials & Design DNA-like Torsional structure Twisting deformation Additive manufacturing Finite element model |
| title | Design and testing of a DNA-like torsional structure for energy absorption |
| title_full | Design and testing of a DNA-like torsional structure for energy absorption |
| title_fullStr | Design and testing of a DNA-like torsional structure for energy absorption |
| title_full_unstemmed | Design and testing of a DNA-like torsional structure for energy absorption |
| title_short | Design and testing of a DNA-like torsional structure for energy absorption |
| title_sort | design and testing of a dna like torsional structure for energy absorption |
| topic | DNA-like Torsional structure Twisting deformation Additive manufacturing Finite element model |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523000576 |
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