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ABSTRACT
Residual Strength and Microdamage of Cortical Bone After Non-Destructive Creep Loading
Ei Yamamoto1,*, Yuki Tanifuji2, Masaya Nishimoto2, Yuki Kawamura2
1 Depertment of Biomedical Engineering, Faculty of Biology-Oriented Science and Technology, Kindai University,
Nishimitani 930, Kinokawa, Wakayama 649-6493, Japan.
2 Major of Biological System Engineering, Graduate School of Biology-Oriented Science and Technology, Kindai University,
Nishimitani 930, Kinokawa, Wakayama 649-6493, Japan.
* Corresponding Author: Ei Yamamoto. Email:
The International Conference on Computational & Experimental Engineering and Sciences 2021, 23(1), 17-17. https://doi.org/10.32604/icces.2021.08434
Abstract
Bone tissue is a viscoelastic material which shows time-dependent
mechanical manner. Moreover, it is known that bone microdamage is generated
by physiological normal mechanical loading in vivo [1-3]. In order to know basic
insight into the adverse effects of creep loading on bone strength, in the present
study, we focused on the mechanical behavior of cortical bone after nondestructive creep loading at high stress magnitude. Cylindrical specimens were
obtained from cortical bone in the longitudinal and tangential direction of bovine
femur. We statically applied a compressive stress to the specimens (creep group)
for 24 hours. The specimens without creep loading were used to obtain the data
on the intact cortical bone (control group). Micro-Vickers hardness tests were
conducted for the specimens in the control and creep groups. X-ray micro CT
analyses were performed to detect bone microdamage. The hardness in the creep
group was lower than that in the control group. Furthermore, X-ray micro CT
analyses demonstrated that there existed bone microdamage mainly at the outer
portion of the specimen in the creep group. These results indicate that bone
microdamage was induced by the creep loading.
Keywords
Cite This Article
APA Style
Yamamoto, E., Tanifuji, Y., Nishimoto, M., Kawamura, Y. (2021). Residual strength and microdamage of cortical bone after non-destructive creep loading. The International Conference on Computational & Experimental Engineering and Sciences, 23(1), 17-17. https://doi.org/10.32604/icces.2021.08434
Vancouver Style
Yamamoto E, Tanifuji Y, Nishimoto M, Kawamura Y. Residual strength and microdamage of cortical bone after non-destructive creep loading. Int Conf Comput Exp Eng Sciences . 2021;23(1):17-17 https://doi.org/10.32604/icces.2021.08434
IEEE Style
E. Yamamoto, Y. Tanifuji, M. Nishimoto, and Y. Kawamura "Residual Strength and Microdamage of Cortical Bone After Non-Destructive Creep Loading," Int. Conf. Comput. Exp. Eng. Sciences , vol. 23, no. 1, pp. 17-17. 2021. https://doi.org/10.32604/icces.2021.08434