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学科主题: 临床医学
题名:
Constitutive relationship of tissue behavior with damage accumulation of human cortical bone
作者: Luo, Qing1,2; Leng, Huijie3; Acuna, Rae2; Dong, Xuanliang Neil2; Rong, Qiguo1; Wang, Xiaodu2
关键词: Bone ; Damage mechanics ; Constitutive model ; Viscous response ; Plasticity
刊名: JOURNAL OF BIOMECHANICS
发表日期: 2010-08-26
DOI: 10.1016/j.jbiomech.2010.04.026
卷: 43, 期:12, 页:2356-2361
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Biophysics ; Engineering, Biomedical
研究领域[WOS]: Biophysics ; Engineering
关键词[WOS]: MECHANICAL-PROPERTIES ; VISCOELASTIC PROPERTIES ; YIELD DAMAGE ; FATIGUE ; MODEL ; MICRODAMAGE ; FAILURE ; CYCLES ; TESTS ; WATER
英文摘要:

Microdamage accumulation has been identified as a major conduit for bone tissues to absorb fracture energy. Due to the poor understanding of its underlying mechanism, however, an adequate constitutive relationship between damage accumulation and the mechanical behavior of bone has not yet been established. In this study, the constitutive relationship between the damage accumulation induced by overload and the evolution of mechanical properties of bone with incremental deformation was established based on the experimental results obtained from a novel progressive loading protocol developed in our laboratory. First, a decayed exponential model was proposed to capture the damage accumulation (modulus loss) with increase in applied strain. Next, a power law function was proposed to represent the progression of plastic deformation with damage accumulation. Finally, a linear combination of the Kohlrausch-Williams-Watts (KWW) and the Debye functions was used to depict the viscoelastic behavior of bone associated with damage accumulation. The results of this study may help in developing a constitutive model for predicting the mechanical behavior of cortical bone tissues. (C) 2010 Elsevier Ltd. All rights reserved.

语种: 英语
所属项目编号: 1R01AR055955
项目资助者: NIH ; China Scholarship Council
WOS记录号: WOS:000282112300017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/58917
Appears in Collections:北京大学第三临床医学院_期刊论文

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作者单位: 1.Peking Univ, Hosp 3, Beijing 100871, Peoples R China
2.Peking Univ, Coll Engn, Dept Biomed Engn, Beijing 100871, Peoples R China
3.Univ Texas San Antonio, UTSA Circle 1, San Antonio, TX 78249 USA

Recommended Citation:
Luo, Qing,Leng, Huijie,Acuna, Rae,et al. Constitutive relationship of tissue behavior with damage accumulation of human cortical bone[J]. JOURNAL OF BIOMECHANICS,2010,43(12):2356-2361.
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