Effect of saturation on the elastic properties and anisotropy of cortical bone

Zhou, Jiuguang; Cui, Zhiwen; Sevostianov, Igor

Affiliations

¹School of Medical Science, Beihua University, Jilin 132001, China

²College of Physics, Jilin University, Changchun 130012, China

³Department of Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM 88003, USA

Abstract and keywords

This paper focuses on the modeling of the effect of saturation on the overall elastic properties of cortical bone. We first use micromechanical model of Salguero, Saadat & Sevostianov (2014) to model anisotropic effective elastic stiffness of drained cortical bone and then apply replacement relations (see review of Sevostianov, 2020) to evaluate effect of the saturation. The model is verified by comparison with the experimental data of Granke et al. (2011). It is shown that accounting for the saturation makes the model consistent with the experiment data. We also compared the extents of anisotropy of the saturated and drained bones and show that presence of the biological fluid in pores reduces the overall anisotropy

Keywords: Cortical bone; Saturation; Anisotropy; Replacement relations

Links

DOI: 10.1016/j.ijengsci.2020.103362

WoS: 000567604500004

History

Received: 2020-07-13

Accepted: 2020-07-27

Online: 2020-08-13

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