Mechanical characterization of 3D printed multi-morphology porous Ti6Al4V scaffolds based on triply periodic minimal surface architectures

American Journal of Translational Research

Jian-Ping Shi¹  Li-Ya Zhu²  Zong-An Li³  Lan Li⁴ 

[1] Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing 210093, Jiangsu, China;Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing, Nanjing Normal University, Nanjing 210042, Jiangsu, China;Nanjing Institute of Intelligent High-End Equipment Industry Co., Ltd., Nanjing, Jiangsu, China;School of Mechanical Engineering, Southeast University, Nanjing 211189, Jiangsu, China

关键词: Triply periodic minimal surface;    multi-morphology scaffold;    graded porous structure;    3D printing;    bone tissue engineering;   

DOI  :  

学科分类：医学（综合）

来源: e-Century Publishing Corporation

【 摘 要 】

Heterogeneous biomaterials that simultaneously mimic the topological and mechanical properties of nature bone tissues are of great interest in recent years. In this study, multi-morphology porous scaffolds based on the triply periodic minimal surfaces (TPMS) were designed and 3D printed with spatially changing pore patterns. Experiments and numerical analyses were carried out to assess the mechanical properties of the multi-morphology graded porous scaffold. As can be seen from the results, the multi-morphology structure showed a combination of relatively low elastic moduli and high yield strength. This combination allows for simultaneously minimizing the bone damage and increasing the stability of bone-implant interface. Thus the 3D printed multi-morphology porous Ti6AlV scaffold had shown significant promise for orthopedic application.

【 授权许可】

CC BY-NC