Micromechanisms of Cortical Bone Failure Under Different Loading Conditions
| Autor: | Swati Sharma, Liqun Ning, Xiongbiao Chen, Karanvir Saini, Apoorv Rathi, N. K. Sharma, Abhinav Kumar, M. D. Sarker, Saman Naghieh |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Compressive Strength Scanning electron microscope 0206 medical engineering Biomedical Engineering 02 engineering and technology Matrix (biology) Weight-Bearing Physiology (medical) Elastic Modulus Tensile Strength Ultimate tensile strength medicine Cortical Bone Composite material Stiffness 021001 nanoscience & nanotechnology Microstructure 020601 biomedical engineering Transverse plane medicine.anatomical_structure Cortical bone Stress Mechanical medicine.symptom 0210 nano-technology Material properties |
| Zdroj: | Journal of biomechanical engineering. 142(9) |
| ISSN: | 1528-8951 |
| Popis: | Bone being a hierarchical composite material has a structure varying from macro- to nanoscale. The arrangement of the components of bone material and the bonding between fibers and matrix gives rise to its unique material properties. In this study, the micromechanisms of cortical bone failure were examined under different loading conditions using scanning electron microscopy. The experimental tests were conducted in longitudinal and transverse directions of bone diaphysis under tensile as well as compressive loading. The results show that bone material has maximum stiffness under longitudinal tensile loading, while the strength is higher under transverse compressive loading. A reverse trend of compressive mechanical properties of bone is observed for longitudinal and transverse loading as compared to trends reported in the previous studies. Therefore, micromechanisms of cortical bone failure were analyzed for different loading conditions to reveal such type of behavior of cortical bone and to correlate bone microstructure with mechanical response of bone. |
| Databáze: | OpenAIRE |
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