DESIGN AND FINITE ELEMENT ANALYSIS OF BIODEGRADABLE ORTHOPAEDIC SCREWS WITH BULK AND GYROID MATRIX CORE

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dc.contributor.advisorHuri, Dávid
dc.contributor.authorGaima, Emmanuel Andrew Reuben
dc.contributor.departmentDE--Műszaki Kar
dc.date.accessioned2025-06-24T13:12:10Z
dc.date.available2025-06-24T13:12:10Z
dc.date.created2025-05-19
dc.description.abstractThis thesis research aims to design a standard HB 6.5 biodegradable orthopaedic screw and modify its mechanical behaviour by integrating a triply periodic cellular gyroid core. The methodology involves modelling a gyroid lattice with 0.5mm channels and integrating it into the core of the screw. The concept being explored is to investigate the reduction in screw stiffness within a measurable ratio, which could alleviate stress shielding and promote biological integration of growing bone into the exposed gyroid core. A finite element analysis methodology was used to assess and compare the mechanical performance of a gyroid-core HB 6.5 cancellous orthopaedic screw with an identical bulk-core screw. The chosen material for the screw is biodegradable magnesium alloy (WE43), known for its biocompatibility and favourable in vivo characteristics. The decision to use gyroid lattice as the core structure stems from a publication by researchers at the University of Debrecen, which demonstrated that triply minimal surfaces can enhance osteointegration properties. A prototype was developed using a 3D resin-based printer, allowing for further experiments and visualisation for future researchers.
dc.description.courseMechanical Engineeringen
dc.description.degreeMSc/MA
dc.format.extent69
dc.identifier.urihttps://hdl.handle.net/2437/394532
dc.language.isoen
dc.rights.infoHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjectGyroid
dc.subjectOrthopaedic
dc.subjectScrew
dc.subjectBiodegradable
dc.subjectMagnesium
dc.subjectFEA
dc.subject.dspaceEngineering Sciences
dc.titleDESIGN AND FINITE ELEMENT ANALYSIS OF BIODEGRADABLE ORTHOPAEDIC SCREWS WITH BULK AND GYROID MATRIX CORE
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Theses (Department of Mechanical Engineering)