ArticleFrontiers in bioengineering and biotechnology2025
Influence of load-bearing angle, structural topology, and porosity gradient on the energy absorption capability of TPMS-based scaffolds for bone tissue engineering.
Article in Frontiers in bioengineering and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Structural Behavior Analysis of a Bone-Scaffold System According to the Elastic Modulus of Bone Cement and Pore Size in the Proximal Femur.Journal of functional biomaterials · 2026Article
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Abstract
Introduction: Triply periodic minimal surfaces (TPMS) based scaffolds are widely used in bone tissue engineering for fixing bone fractures. The bone scaffolds implanted in the human body may receive shocking or impact loading during daily activities. However their energy absorption (EA) behaviors are still not systematically investigated in the literature. Methods: In the present study, the influence of load_bearing angle, the structural topology and porosity gradient on the EA behaviors of TPMS-based scaffolds are investigated. Uniform and porosity gradient Gyroid and IWP structures at the load-bearing angles of 0°, 15°, 30°, 45°, 60°, 75° and 90° were created. Mechanical testing and finite element analysis were performed to investigate their EA behaviors, which were characterized using the energy absorption efficiency (EAE), the specific energy absorption (SEA), the levels of the densification strain, plateau stress and stress distribution. Results: The results showed that the load-bearing angle plays an important role in EAE, SEA and plateau stress of porosity gradient Gyroid and IWP scaffolds. Different from the uniform TPMS scaffolds, the porosity gradient Gyroid and IWP scaffolds showed layer-to-layer damage behaviors, which reinforced their load-bearing capability and consequently the SEA performance is improved. Conclusion: The data in the present study provided important guidance on the selection and design of TPMS structures for bone tissue engineering applications.
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