NDLI: Design, analysis and fabrication of polyamide/ hydroxyapatite porous structured scaffold using selective laser sintering method for bio-medical applications

Content Provider	Springer Nature Link
Author	Kumaresan, T. Gandhinathan, R. Ramu, M. Ananthasubramanian, M. Pradheepa, K. Banu
Copyright Year	2016
Abstract	Both medical and engineering sciences play a vital role in human health diagnose and treatment. In this scientific world, the technology of alternative bone scaffold is one of the remedial sources for bone loss treatment. This research paper focuses on the design and analysis of porous scaffold made of additive manufacturing process. Various types of biocompatible materials with different characteristics are used for this bone scaffold. In order to have high load bearing capacity, a material composition of biocompatible Polyamide (PA) combined with Hydroxyapatite (HA) is used in this research work. HA has the character of greater cell seeding growth of tissue cells and hence added in the composition. The porous scaffold models with different configuration of cubical pore, spherical pore, shifted cubical pore, shifted spherical pore are designed using Solidworks software with a pore size of 800 microns and the porosity ranging from 40 % to 70 %. All the CAD models are analyzed using ANSYS software. Based on the static structural analysis, the shifted cubical scaffold posses lesser stress concentration, and thus selected for fabrication using Selective Laser Sintering machine. The specimens are fabricated in three different build orientations and the load bearing strength is found out using experimentation. The different material composition of 100 %PA, 95 %PA: 5 %HA, 90 %PA: 10 %HA and 85 %PA: 15 %HA are considered for this study.
Starting Page	5305
Ending Page	5312
Page Count	8
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	30
Issue Number	11
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2016-11-12
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polyamide (PA) Hydroxyapatite (HA) Selective laser sintering (SLS) Finite element analysis (FEA) Porous scaffold Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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