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Compressive mechanical properties of bovine cortical bone under varied loading rates
Alternative TitleProc. Inst. Mech. Eng. Part H-J. Eng. Med.
Yu, B.2; Zhao, G-F1; Lim, J. I.3,4; Lee, Y-K1
2011
Source PublicationPROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE
ISSN0954-4119
Volume225Issue:H10Pages:941-947
AbstractBone tissue functions in varied mechanical systems of the body under static and dynamic conditions. Therefore, it is essential to understand the mechanical responses of bone at varied loading rates, especially those at fast loading rates. This study has investigated the effect of loading rate on the compressive mechanical properties of bovine cortical bone. Bone specimens of 3.85 mm in diameter and 7.7 mm in length were compressed longitudinally with the loading rates of 2 to 2000 mm/s (corresponding strain rates of 0.26 to 260 s(-1)). As a result, bovine cortical bone showed high linear elasticity when the loading rate was slow, and exhibited three definite regions of linear elasticity, plastic deformation, and densification at faster loading rates. The elastic modulus showed no dependency on the loading rate. Compressive strength, strain at fracture, and toughness increased as the loading rate increased under the condition that the loading rates were slower than each critical loading rate of 1000, 100, and 1500 mm/s, respectively. However, all showed no significant changes when the loading rates were faster than the corresponding critical loading rates. In conclusion, as the loading rate increased, changes in the compressive mechanical parameters were different depending on the parameter and the loading rate range. Compressive mechanical behaviour of bovine cortical bone showed a brittle nature under high strain rates (strain rates > 13 s(-1)). These findings should be reflected in the biomimetic simulation of biomaterials for bone tissue repair and engineering.; Bone tissue functions in varied mechanical systems of the body under static and dynamic conditions. Therefore, it is essential to understand the mechanical responses of bone at varied loading rates, especially those at fast loading rates. This study has investigated the effect of loading rate on the compressive mechanical properties of bovine cortical bone. Bone specimens of 3.85 mm in diameter and 7.7 mm in length were compressed longitudinally with the loading rates of 2 to 2000 mm/s (corresponding strain rates of 0.26 to 260 s(-1)). As a result, bovine cortical bone showed high linear elasticity when the loading rate was slow, and exhibited three definite regions of linear elasticity, plastic deformation, and densification at faster loading rates. The elastic modulus showed no dependency on the loading rate. Compressive strength, strain at fracture, and toughness increased as the loading rate increased under the condition that the loading rates were slower than each critical loading rate of 1000, 100, and 1500 mm/s, respectively. However, all showed no significant changes when the loading rates were faster than the corresponding critical loading rates. In conclusion, as the loading rate increased, changes in the compressive mechanical parameters were different depending on the parameter and the loading rate range. Compressive mechanical behaviour of bovine cortical bone showed a brittle nature under high strain rates (strain rates > 13 s(-1)). These findings should be reflected in the biomimetic simulation of biomaterials for bone tissue repair and engineering.
KeywordBovine Bone Loading Rate Elastic Modulus Compressive Strength Toughness
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1177/0954411911415470
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSTRAIN-RATE ; DYNAMIC RESPONSE ; MICROSTRUCTURE ; STRENGTH
WOS Research AreaEngineering
WOS SubjectEngineering, Biomedical
WOS IDWOS:000295182900001
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6286
Collection研究所(批量导入)
Affiliation1.ICPB, Seoul 122842, South Korea
2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing, Peoples R China
3.Kyung Hee Univ, Dept Biomed Engn, Coll Med, Seoul, South Korea
4.Kyung Hee Univ, Healthcare Ind Res Inst, Coll Med, Seoul, South Korea
Recommended Citation
GB/T 7714
Yu, B.,Zhao, G-F,Lim, J. I.,et al. Compressive mechanical properties of bovine cortical bone under varied loading rates[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE,2011,225(H10):941-947.
APA Yu, B.,Zhao, G-F,Lim, J. I.,&Lee, Y-K.(2011).Compressive mechanical properties of bovine cortical bone under varied loading rates.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE,225(H10),941-947.
MLA Yu, B.,et al."Compressive mechanical properties of bovine cortical bone under varied loading rates".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE 225.H10(2011):941-947.
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