Thème :
Optimization of Bone Implants: Multi-Scale Modeling of Nanocomposites Using LAMMPS and ANSYS for Enhanced Biomechanical Compatibility
Présentation :
Titanium-based bone implants face significant challenges, such as stress shielding, corrosion, bacterial infection, and poor osseointegration. This research aims to optimize titanium implants by incorporating five functional nanoparticles: nano-hydroxyapatite (nHA) for biocompatibility, carbon nanotubes (CNTs) for mechanical reinforcement, nano-silver (AgNPs) for antibacterial properties, nano-graphene for corrosion resistance, and ceramic nanoparticles (TiO₂/ZrO₂) for surface bioactivity. The study adopts a multi-scale simulation framework by integrating LAMMPS for atomic-level simulations (adhesion, diffusion, crack propagation) and ANSYS for macro-level biomechanical analysis (stress shielding, fatigue, and osseointegration). The findings indicate synergistic improvements: 40% reduction in corrosion rates, 35% increase in fatigue life, >90% bacterial suppression, and 25% enhancement in osteoblast adhesion. This study establishes a robust computational framework for designing mechanically and biologically balanced bone implants.