密质骨的滑动界面细观力学模型

MICROMECHANICS MODEL OF CORTICAL BONE WITH SLIDING INTERFACE

本文将粘合线作为骨单元和间板之间的粘弹性界面，建立了密质骨的细观力学模型，并给出了该模型在沿骨的轴线方向载荷作用下的应力响应和某些密质骨的宏观等效模量。还发现骨单元和间板的泊松比之差对密质骨的等效模量和内部横向应力的分布具有重要影响。

In this paper, we considered the cement line between the osteon and the interstitial bone to be theviscoelastic interface, and established the micromechanics model of conical bone. The stressresponse of this model under the strain loading along with the axial direction of bone and somemacroscopic effective modulus of conical bone were provided. We also found that the difference ofPoisson's ratios of the osteon and the interstitial bone was very important for the effective modulusand the transverse stress distribution of conical bone.