Modelling & Analysis of TPMS Scaffolds

Research Project Overview

This summer research internship focused on exploring the potential of Triply Periodic Minimal Surface (TPMS) structures for advanced engineering applications. The project involved the computational design and analysis of four distinct TPMS geometries—Gyroid, Neovius, Diamond, and Primitive—to evaluate their performance as biomedical implants (bone scaffolds) and as cores for compact heat exchangers. The entire workflow, from design to simulation, was conducted using Autodesk Fusion 360.

Key Responsibilities & Technical Work:

• Parametric CAD Modeling: Designed complex, mathematically-defined TPMS structures using Autodesk Fusion 360. Systematically varied wall thicknesses (1 mm, 2 mm, and 3 mm) to study their effect on mechanical behavior.
• Material Selection: Selected 316L Stainless Steel as the material for all simulations due to its excellent biocompatibility, corrosion resistance, and robust mechanical properties suitable for both implants and thermal equipment.
• Finite Element Analysis (FEA): Conducted a series of mechanical simulations to analyze the structural integrity of each TPMS design. This involved applying uniform compressive loads to replicate realistic physiological conditions for biomedical implants.
• Data Analysis & Interpretation: Evaluated and compared simulation results, focusing on key performance metrics such as Von Mises stress distribution, deformation, factor of safety, and elastic modulus. The analysis confirmed that Gyroid and Diamond structures are particularly well-suited for load-bearing applications.

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