Investigating the mechanical properties of cortical bone under dynamic torsional loading
Bone is a multi-phase, non-homogeneous material that exhibits strain rate sensitivity, and it may fail under compression, tension, torsion, or a combination of these loading. The mechanical properties of cortical bone with strain rate effect under compression and tension have been obtained through t...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Theoretical and Applied Mechanics Letters |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095034924000552 |
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| author | Jianyin Lei Zhiyang Li Hengru Su Shiqiang Li Zhifang Liu |
| author_facet | Jianyin Lei Zhiyang Li Hengru Su Shiqiang Li Zhifang Liu |
| author_sort | Jianyin Lei |
| collection | DOAJ |
| description | Bone is a multi-phase, non-homogeneous material that exhibits strain rate sensitivity, and it may fail under compression, tension, torsion, or a combination of these loading. The mechanical properties of cortical bone with strain rate effect under compression and tension have been obtained through the application of the split Hopkinson pressure/tension bar technique, but no such studies have been reported for determining the strain rate behavior properties of bony materials under torsion. In this study, the shear stress-strain curves with the rate-dependent cortical bone subjected to dynamic torsional loading were first obtained using a torsional split Hopkinson bar system. Based on the experiments, an improved mathematical model consisting of elastic, viscoelastic, and viscoplastic components was used to identify the material parameters of the cortical bone. Detailed material properties are derived through constitutive relations. The results may assist researchers in developing more accurate models of cortical bone behavior under different load conditions. |
| format | Article |
| id | doaj-art-62ef8e6cd01d4e61b2b8b7c4b9bd11fe |
| institution | Kabale University |
| issn | 2095-0349 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Theoretical and Applied Mechanics Letters |
| spelling | doaj-art-62ef8e6cd01d4e61b2b8b7c4b9bd11fe2024-12-12T05:21:09ZengElsevierTheoretical and Applied Mechanics Letters2095-03492024-07-01144100544Investigating the mechanical properties of cortical bone under dynamic torsional loadingJianyin Lei0Zhiyang Li1Hengru Su2Shiqiang Li3Zhifang Liu4Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan 030024, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan 030024, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan 030024, China; Corresponding author.Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan 030024, ChinaBone is a multi-phase, non-homogeneous material that exhibits strain rate sensitivity, and it may fail under compression, tension, torsion, or a combination of these loading. The mechanical properties of cortical bone with strain rate effect under compression and tension have been obtained through the application of the split Hopkinson pressure/tension bar technique, but no such studies have been reported for determining the strain rate behavior properties of bony materials under torsion. In this study, the shear stress-strain curves with the rate-dependent cortical bone subjected to dynamic torsional loading were first obtained using a torsional split Hopkinson bar system. Based on the experiments, an improved mathematical model consisting of elastic, viscoelastic, and viscoplastic components was used to identify the material parameters of the cortical bone. Detailed material properties are derived through constitutive relations. The results may assist researchers in developing more accurate models of cortical bone behavior under different load conditions.http://www.sciencedirect.com/science/article/pii/S2095034924000552Cortical boneTorsional split Hopkinson barStrain rate effectConstitutive model |
| spellingShingle | Jianyin Lei Zhiyang Li Hengru Su Shiqiang Li Zhifang Liu Investigating the mechanical properties of cortical bone under dynamic torsional loading Theoretical and Applied Mechanics Letters Cortical bone Torsional split Hopkinson bar Strain rate effect Constitutive model |
| title | Investigating the mechanical properties of cortical bone under dynamic torsional loading |
| title_full | Investigating the mechanical properties of cortical bone under dynamic torsional loading |
| title_fullStr | Investigating the mechanical properties of cortical bone under dynamic torsional loading |
| title_full_unstemmed | Investigating the mechanical properties of cortical bone under dynamic torsional loading |
| title_short | Investigating the mechanical properties of cortical bone under dynamic torsional loading |
| title_sort | investigating the mechanical properties of cortical bone under dynamic torsional loading |
| topic | Cortical bone Torsional split Hopkinson bar Strain rate effect Constitutive model |
| url | http://www.sciencedirect.com/science/article/pii/S2095034924000552 |
| work_keys_str_mv | AT jianyinlei investigatingthemechanicalpropertiesofcorticalboneunderdynamictorsionalloading AT zhiyangli investigatingthemechanicalpropertiesofcorticalboneunderdynamictorsionalloading AT hengrusu investigatingthemechanicalpropertiesofcorticalboneunderdynamictorsionalloading AT shiqiangli investigatingthemechanicalpropertiesofcorticalboneunderdynamictorsionalloading AT zhifangliu investigatingthemechanicalpropertiesofcorticalboneunderdynamictorsionalloading |