Residual stress in bone structure and tissue of rabbit's tibiofibula.
Residual stress in bone structure and tissue of rabbit's tibiofibula.
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DOI：
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发表时间：
2006
影响因子：
1
通讯作者：
S. Tadano;T. Okoshi
中科院分区：
文献类型：
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作者：
S. Tadano;T. Okoshi
本文介绍了一种测量兔胫骨骨组织残余应力/应变的X射线衍射方法。为了获得残余应力，使用直径小于40微米的骨粉作为非应力状态下的对照试样。从X线测量结果可以清楚地看出，骨组织中存在残余应力的分布。骨轴向残余拉应力主要发生在胫骨近内侧。在其他区域发生压应力。此外，通过对胫腓骨系统从骨结构尺度到骨组织尺度的连续切割，研究了残余应力的产生机理。骨重建是骨结构在功能上适应力学环境的一种现象。残余应力将成为诱导重塑的机械触发器。
This paper presents an X-ray diffraction method of measuring the residual stress/strain in bone tissue of rabbit's tibia. To derive the residual stress, bone powder of the diameter less than 40 micrometers was used as a control specimen at non-stressed state. From the X-ray measurements, it was clear that the distribution of residual stress existed in the bone tissue. The tensile residual stress at bone axial direction occurred in the proximal-medial region of rabbit's tibia. The compressive stress occurred in the other regions. In addition, the mechanism to generate the residual stress was investigated by sequential cutting of the tibiofibula system from bone structure scale to bone tissue scale. The remodeling is a phenomenon that the bone structure adapts functionally to mechanical environment. The residual stress will become a mechanical trigger to induce the remodeling.