Publications by authors named "Hai-Peng Cen"
Article Synopsis
- - The study explores how bone's layered structure affects its mechanical properties and the movement of fluids, which are crucial for processes like bone adaptation and remodeling.
- - Using a multiscale modeling approach and COMSOL Multiphysics, researchers created detailed bone models to analyze stress, strain, and fluid dynamics at different scales, validating the accuracy of their models.
- - Results indicate significant variations in fluid pressure, velocity, and stresses throughout different regions of the bone, highlighting the impact of bone structure on these factors and emphasizing the important roles of endosteum and periosteum in fluid flow.
Purpose: In this work, a finite element study is proposed by using the Comsol Multiphysics software to evaluate the effects of microcrack shape, size and direction on the poroelastic behaviors of a single osteon.
Methods: This finite element model is established by using the Comsol Multiphysics software, and we just focus on the comparison of the influences of those microcrack geometric parameters on the osteonal fluid pressure and velocity.
Results: The results show that: (1) microcracks in the osteon wall can induce a release of the fluid pressure, but enlarge the velocity in this region; (2) equal-area microcrack with ellipsoid-like shape produced a larger fluid pressure and velocity fields in the osteon than that of rectangular shape; (3) in the elliptic microcracks, the longer of the length (major semi-axis) induces a smaller fluid pressure and velocity amplitudes, whereas the width (minor axis) has little effect; (4) the direction of the microcracks (major axial direction) has an limited influence area around about 1/15 of the osteon cross-sectional area.