Related Experiment Video
Updated: Aug 13, 2025
06:36
3D Printed Porous Cellulose Nanocomposite Hydrogel Scaffolds
Published on: April 24, 2019
9.7K
Effect of Infill Parameters on the Compressive Strength of 3D-Printed Nylon-Based Material
Jingjing Liu1, Muhammad Awais Naeem1, Mouaz Al Kouzbary1
1Centre for Applied Biomechanics, Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Polymers
|January 21, 2023
Summary
3D printing offers a suitable method for creating powered ankle-foot prosthesis frames. Optimizing infill patterns, like triangular, and density enhances compressive strength for robust and lightweight prosthetic components.
Area of Science:
- Materials Science
- Biomedical Engineering
- Additive Manufacturing
Background:
- 3D printing is ideal for manufacturing powered ankle-foot prosthesis frames.
- Ensuring adequate compressive strength in 3D-printed components is critical for functionality and safety.
Purpose of the Study:
- To investigate the impact of infill pattern and density on the compressive strength of 3D-printed carbon fiber-reinforced nylon.
- To determine optimal printing parameters for lightweight yet strong prosthetic components.
Main Methods:
- Compression testing of 3D-printed specimens according to ASTM D695 standard.
- Systematic variation of infill patterns (triangular, rectangular, gyroid, solid) and densities.
- Material used: carbon fiber-reinforced nylon.
Main Results:
- Compressive strength increases with specimen mass for a given infill pattern.
- Triangular infill patterns exhibit higher compressive strength compared to rectangular and gyroid fills at the same mass.
- Triangular fills offer superior compressive strength per unit mass compared to solid fills.
Conclusions:
- A 41% triangular infill was selected for a powered ankle-foot prosthesis supporting part, balancing strength and weight requirements.
- The selected design demonstrated a strain of 1.32 ± 0.04% under a 1225 N load, meeting design specifications.
- Findings provide valuable data for optimizing 3D-printed parts requiring high compressive strength.
