Umar, Mohammad  <br/><br/>
Numerical Analysis of Mechanical Response in Various Ti6Al4V Scaffolds for Orthopedic Bone Implants / 
Mohammad Umar 
 - 118p.  Soft Copy  30cm 
<br/><br/> In this study, porous scaffolds for orthopedic implants made of Ti6Al4V material are<br/>investigated with respect to their structural and mechanical optimization. The suitability of<br/>these lattice structures for osseointegration and load-bearing applications was evaluated by<br/>finite element analysis (FEA) with porosities of 23% to 89%. The mechanical properties,<br/>such as Young's modulus and yield strength, were assessed to align with cortical and<br/>trabecular bone requirements. 11 out of 24 scaffold configurations were found to meet<br/>mechanical criteria for bone compatibility. These include IsoTruss, Re-Entrant, BCC, and<br/>Diamond unit cells with particular configurations and porosities ranging from 54% to 85%.<br/>Trabecular bone properties were mimicked by scaffolds with high porosities while the<br/>cortical bone properties were mimicked by scaffolds with high densities. Sensitivity<br/>analysis revealed that Re-Entrant scaffolds were the most sensitive to strut thickness and<br/>unit cell volume variations, and IsoTruss and Re-Entrant scaffolds were found to be highly<br/>mechanically efficient. The structural performance of the scaffolds was also validated<br/>against the Gibson–Ashby model. This work thus demonstrates the capability of porous<br/>Ti6Al4V scaffolds to fulfill requirements for orthopedic implant technology between<br/>mechanical performance and biological compatibility. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS Mechanical Engineering      
<br/><br/><label>Dewey Class. No.: </label>621