Affiliation of Author(s):机电学院
Journal:ACS BIOMATERIALS SCIENCE & ENGINEERING
Key Words:porous scaffold Voronoi-Tessellation selective laser melting stress shielding elastic modulus gradient pore structure
Abstract:Adjustment of the mechanical properties (apparent elastic modulus and compressive strength) in porous scaffolds is important for artificial implants and bone tissue engineering. In this study, a top-down design method based on Voronoi-Tessellation was proposed. This method was successful in obtaining the porous structures with specified and functionally graded porosity. The porous specimens were prepared by selective laser melting technology. Quasi static compressive tests were conducted as well. The experiment results revealed that the mechanical properties were affected by both porosity and irregularity. The irregularity coefficient proposed in this study can achieve good accommodation and balance of "irregularity" and "controllability". The method proposed in this study provides an efficient approach for the bionic design and topological optimization of scaffolds.
ISSN No.:2373-9878
Translation or Not:no
Date of Publication:2018-02-01
Co-author:王冠军,zjf,梁绘昕,谢德巧,tzj,Wang, Changjiang
Correspondence Author:zjf,Lida Shen