The fracture mechanics of cortical bone has received much attention in biomedical engineering.It is a fundamental question how the material constants and the geometric parameters of the cortical bone affect the fracture behavior of the cortical bone.In this work,the plane problem for cortical bone with a mi-crocrack located in the interstitial tissue under tensile loading was considered.Using the solution for the continuously distributed edge dislocations as Green's functions,the problem was formu-lated as singular integral equations with Cauchy kernels.The nu-merical results suggest that a soft osteon promotes microcrack propagation,while a stiff osteon repels it,but the interaction effect between the microcrack and the osteon is limited near the osteon.This study not only sheds light on the fracture mechanics behavior of cortical bone but also offers inspiration for the design of bioin-spired materials in biomedical engineering.

WANG Xu;CHEN Yaogeng;DING Shenghu;WANG Wenshuai;LI Xing

School of Mathematics and Statistics,Ningxia University,Yinchuan 750021,Ningxia,China;School of Science,Ningxia Medical University,Yinchuan 750004,Ningxia,China

武汉大学自然科学学报（英文版）

[1]WANG Xu;CHEN Yaogeng;DING Shenghu;WANG Wenshuai;LI Xing-.Cortical Bone Model with a Microcrack under Tensile Loading)[J].武汉大学自然科学学报（英文版）,2022(05):375-382

Microcrack,crocrack,osteon,repels

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