ANALISIS BIODEGRADASI SIFAT MEKANIS MAGNESIUM BERPORI PADA IMPLAN BONE SCAFFOLD

PRAKOSO, AKBAR TEGUH and Basri, Hasan (2016) ANALISIS BIODEGRADASI SIFAT MEKANIS MAGNESIUM BERPORI PADA IMPLAN BONE SCAFFOLD. Undergraduate thesis, Sriwijaya university.

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Abstract

Bone Scaffold in terms of functionality as load-bearing applications requires that the material should have sufficient strength not only at the moment of being implanted but also when the material degrades over the time while remaining in contact with bone marrow. In this work, porous magnesium (Mg) with a opencellular structure, potentially employed as bone tissue engineering scaffolds. The samples of bone scaffolds made of pure magnesium with different porosities were immersed and subjected to dynamic flow rate of simulated body fluid. Degradation on biomaterial bone scaffold leads to changes of the morphology. Samples of impian bone scaffolds were scanned using Micro-CT to determine the overall porosity, architecture and to develop finite element models. Compressive loads were applied on models to simulate compressive test and stress and strain distributions were calculated. General properties for instance, elastic modulus, 0.2% offset yield stress and plateu stress were collected from simulation results. The findings were then validated with the valued obtained ffom the experimental result. The numerical simulation result showed good agreement with the experimental test. The present investigation found that the mechanical properties decreased systematically over a 72-hours period of immersion time.Results showed strong relationship between morphology parameters (volume ffaction and porosity) and mechanical properties of bone scaffolds. However, the maximum percentage error comparison between simulations result with experimental test reached 17%. The results indicate that the microarchitectural parameters can affect th mechanical properties. Keywords : Bone Scaffold\ Mechanical Properties, Porous Magnesium, FEM, Morphology>, MicroCT Scan xu

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	bone scaffold, sifat mekanis , magnesium berpori, FEM, morfologi, MicroCT Scan
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ181-210 Mechanical movements > TJ184.B37 Gearing--Lubrication. Lubrication and lubricants. Tribology.
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Ichlasyah Aisyah
Date Deposited:	01 Sep 2025 07:50
Last Modified:	01 Sep 2025 07:50
URI:	http://repository.unsri.ac.id/id/eprint/183559

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