Conall Daly

My work on simulating a self-expanding Nitinol cardiovascular stent has equipped me with valuable engineering skills that are directly applicable to advanced design and analysis challenges. Key skills developed include:

  • Finite Element Analysis (FEA): Conducted simulations to evaluate stress distribution, radial force, and fatigue life of stent designs under realistic loading conditions.
  • Material Modeling: Developed a constitutive model for Nitinol, accounting for its unique superelastic and shape-memory properties.
  • Parametric Design Analysis: Investigated the impact of geometric variations (e.g., strut and link thickness) on mechanical performance and fatigue life, identifying optimal configurations for reduced chronic outward force (COF).
  • Non-Linear Analysis: Managed complexities like large deformations, contact interactions, and stress-strain hysteresis, ensuring realistic simulations of stent behavior.
  • Boundary Condition Implementation: Applied cylindrical coordinate constraints and cyclic symmetry to model realistic deployment conditions.
  • Validation and Benchmarking: Compared simulation outputs against experimental data for commercially available stents, highlighting areas for improvement and ensuring realistic design insights.
  • Mesh Optimization: Performed mesh independence studies to balance computational efficiency and accuracy in stress predictions.

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