Chapter 1 Topology optimization of prosthetic limb from advanced polymeric materials utilizing finite element method
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Marios Gavriilopoulos
Abstract
Topology optimizationoptimization enables the design of products with customized properties while preserving or improving the strength-to-weight ratio. In the biomedical field, customized designs and structures with tailored and compatible properties are essential, especially for external prosthetic components, where poor integration with the human body could contribute to skeletal or muscular atrophy. In recent years, additive manufacturing (AM) has gained prominence for its ability to fabricate complex, customized designs into functional products. In biomedical applications, AM enables the rapid production of personalized prosthetic components. While biocompatible materials are essential for direct-contact surfaces, recycled materials can serve as a sustainable feedstock, addressing net-zero waste goals. This study presents a computational investigation of a lower prosthetic limb incorporating lattice structures to enhance biomechanicalbiomechanical performance, including load distribution, stress management, and shock absorption, using finite element analyses under activities of daily living loading conditions. The results indicate that gyroid lattice geometries effectively reduce stress concentrations in the prosthetic foot while maintaining structural integrity and minimizing weight. Notably, after topological optimization, the safety factor increased from just above 1–3, demonstrating a substantial improvement in structural reliability. While further experimental validation is necessary for practical implementation, the findings suggest that the proposed model is both feasible and functionally advantageous.
Abstract
Topology optimizationoptimization enables the design of products with customized properties while preserving or improving the strength-to-weight ratio. In the biomedical field, customized designs and structures with tailored and compatible properties are essential, especially for external prosthetic components, where poor integration with the human body could contribute to skeletal or muscular atrophy. In recent years, additive manufacturing (AM) has gained prominence for its ability to fabricate complex, customized designs into functional products. In biomedical applications, AM enables the rapid production of personalized prosthetic components. While biocompatible materials are essential for direct-contact surfaces, recycled materials can serve as a sustainable feedstock, addressing net-zero waste goals. This study presents a computational investigation of a lower prosthetic limb incorporating lattice structures to enhance biomechanicalbiomechanical performance, including load distribution, stress management, and shock absorption, using finite element analyses under activities of daily living loading conditions. The results indicate that gyroid lattice geometries effectively reduce stress concentrations in the prosthetic foot while maintaining structural integrity and minimizing weight. Notably, after topological optimization, the safety factor increased from just above 1–3, demonstrating a substantial improvement in structural reliability. While further experimental validation is necessary for practical implementation, the findings suggest that the proposed model is both feasible and functionally advantageous.
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributing authors IX
- About the editors XIII
- Chapter 1 Topology optimization of prosthetic limb from advanced polymeric materials utilizing finite element method 1
- Chapter 2 Diffusion models in product design: optimizing form toward digital prototyping 21
- Chapter 3 CAD/CAM systems: application features and possible scenarios for the footwear industry 43
- Chapter 4 Optimizing project management and design workflows: visual and computational strategies for collaborative design 77
- Chapter 5 Generating customized 3D garments based on 3D scanned body geometry and 2D sketches 95
- Chapter 6 Machine design: modern design techniques and methodologies for a sustainable design 113
- Chapter 7 Pragmatic customization in medical device design for sustainable healthcare 143
- Chapter 8 3D printing-based applications 165
- Chapter 9 Gamification in teaching of 3D design, scanning, and printing 173
- Chapter 10 EU vision to pave the way for impactful R&I in the Western Balkans: a case at POLIS University 205
- Index 345
- De Gruyter Series in Advanced Mechanical Engineering
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributing authors IX
- About the editors XIII
- Chapter 1 Topology optimization of prosthetic limb from advanced polymeric materials utilizing finite element method 1
- Chapter 2 Diffusion models in product design: optimizing form toward digital prototyping 21
- Chapter 3 CAD/CAM systems: application features and possible scenarios for the footwear industry 43
- Chapter 4 Optimizing project management and design workflows: visual and computational strategies for collaborative design 77
- Chapter 5 Generating customized 3D garments based on 3D scanned body geometry and 2D sketches 95
- Chapter 6 Machine design: modern design techniques and methodologies for a sustainable design 113
- Chapter 7 Pragmatic customization in medical device design for sustainable healthcare 143
- Chapter 8 3D printing-based applications 165
- Chapter 9 Gamification in teaching of 3D design, scanning, and printing 173
- Chapter 10 EU vision to pave the way for impactful R&I in the Western Balkans: a case at POLIS University 205
- Index 345
- De Gruyter Series in Advanced Mechanical Engineering
