Advances in Bio-Inspired Design and Characterization of 3D-Printed Multimaterial Composites and Heterogeneous Structures

A special issue of Biomimetics (ISSN 2313-7673). This special issue belongs to the section "Biomimetics of Materials and Structures".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 5034

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Rice University, Houston, TX 77005, USA
Interests: fracture mechanics, with a focus on interfacial fractures, deformation, and failure mechanisms in advanced composite materials and additively manufactured materials

Special Issue Information

Dear Colleagues,

This Special Issue invites researchers and engineers to explore cutting-edge developments in bio-inspired design and the characterization of 3D-printed multimaterial composites and heterogeneous structures. Bio-inspired approaches offer a wealth of innovative solutions, as nature’s materials exhibit unique and often complex combinations of strength, toughness, and flexibility. By leveraging 3D printing technologies, researchers can replicate and enhance these biological designs, enabling the creation of advanced composites for applications in medicine, robotics, aerospace, and beyond.

Our topics of interest include, but are not limited to, the following areas:

  • Novel bio-inspired architectures and material combinations for improved mechanical and fracture properties;
  • Design strategies and the modeling of heterogeneous structures and interfaces;
  • Advances in 3D printing techniques for multimaterial composites;
  • The characterization and testing of the physical, mechanical, and fracture properties of materials (e.g., strength, crack resistance, energy dissipation, etc.);
  • Applications of bio-inspired composites in soft robotics, biomedical devices, and structural materials.

This Special Issue aims to bring together leading research that bridges biology, materials science, and engineering to foster interdisciplinary collaboration and set the stage for future advances in biomimetic materials. We encourage submissions that present novel approaches to design, rigorous experimental studies, and insights into the practical applications of bio-inspired 3D-printed composites.

Dr. Denizhan Yavas
Guest Editor

Manuscript Submission Information

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Keywords

  • bio-inspired design
  • biomimetics
  • 3D printing
  • multimaterial composites
  • heterogeneous structures
  • mechanical characterization
  • functional materials
  • hybrid materials
  • interface engineering
  • additive manufacturing

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Published Papers (3 papers)

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Research

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30 pages, 44897 KB  
Article
Transferring Structural Design Principles from Bamboo to Coreless Filament-Wound Lightweight Composite Trusses
by Pascal Mindermann and Martha Elisabeth Grupp
Biomimetics 2025, 10(12), 840; https://doi.org/10.3390/biomimetics10120840 - 15 Dec 2025
Viewed by 1256
Abstract
Bamboo has evolved a highly optimized structural system in its culms, which this study transfers into lightweight fiber composite trusses fabricated by coreless filament winding. Focusing on the structural segmentation involving diaphragms of the biological role model, this design principle was integrated into [...] Read more.
Bamboo has evolved a highly optimized structural system in its culms, which this study transfers into lightweight fiber composite trusses fabricated by coreless filament winding. Focusing on the structural segmentation involving diaphragms of the biological role model, this design principle was integrated into the additive manufacturing process using a multi-stage winding, a tiling approach, and a water-soluble winding fixture. Through a FE-assisted analytical abstraction procedure, the transition to a carbon fiber material system was considered by determining a geometrical configuration optimized for structural mass, bending deflection, and radial buckling. Samples were fabricated from CFRP and experimentally tested in four-point bending. In mass-specific terms, integrating diaphragms into wound fiber composite samples improved failure load by 36%, ultimate load by 62%, and energy absorption by a factor of 7, at a reduction of only 14% in stiffness. Benchmarking against steel and PVC demonstrated superior mass-specific performance, although mōsō bamboo still outperformed all technical solutions, except in energy absorption. Full article
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14 pages, 4123 KB  
Article
Research on the Impact Toughness of 3D-Printed CoCrMo Alloy Components Based on Fractal Theory
by Guoqing Zhang, Junxin Li, Han Wang, Congcong Shangguan, Juanjuan Xie and Yongsheng Zhou
Biomimetics 2025, 10(5), 292; https://doi.org/10.3390/biomimetics10050292 - 6 May 2025
Cited by 1 | Viewed by 1084
Abstract
In order to obtain high-performance 3D printed parts, this study focuses on the key performance indicator of impact toughness. The parametric modeling software Rhino 6 is used to design impact specimens, and the laser selective melting equipment DiMetal-100, independently developed by the South [...] Read more.
In order to obtain high-performance 3D printed parts, this study focuses on the key performance indicator of impact toughness. The parametric modeling software Rhino 6 is used to design impact specimens, and the laser selective melting equipment DiMetal-100, independently developed by the South China University of Technology, is used to manufacture impact specimens. Subsequently, the CoCrMo alloy parts were annealed using an MXQ1600-40 box-type atmosphere furnace and subjected to impact testing using a cantilever beam impact testing machine XJV-22. Fractal theory was applied to analyze the fractal behavior of the resulting impact fracture surfaces. The research results indicate that the 3D-printed impact specimens exhibited excellent surface quality, characterized by brightness, low roughness, and the absence of significant defects such as warping or deformation. In terms of annealing treatment, lower annealing temperatures did not improve the impact performance of SLM-formed CoCrMo alloy parts but instead led to a decrease in toughness. While increasing the annealing temperature can improve toughness to some extent, the effect is limited. Furthermore, the relationship between impact energy and heat treatment temperature exhibits a U-shaped trend. The fractal dimension analysis shows that the parts annealed in a 1200 °C furnace have the highest fractal dimension and better toughness performance. This study introduces a novel approach by comprehensively integrating advanced 3D printing technology, annealing processes, and fractal theory analysis to systematically investigate the influence of annealing temperature on the impact properties of 3D-printed CoCrMo alloy parts, thereby establishing a solid foundation for the application of high-performance 3D printed parts. Full article
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Review

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33 pages, 2694 KB  
Review
Biomimetic Strategies for Bone Regeneration: Smart Scaffolds and Multiscale Cues
by Sheikh Md Mosharof Hossen, Md Abdul Khaleque, Min-Su Lim, Jin-Kyu Kang, Do-Kyun Kim, Hwan-Hee Lee and Young-Yul Kim
Biomimetics 2026, 11(1), 12; https://doi.org/10.3390/biomimetics11010012 - 27 Dec 2025
Cited by 6 | Viewed by 2113
Abstract
Bone regeneration remains difficult due to the complex bone microenvironment and the limited healing capacity of large defects. Biomimetic strategies offer promising solutions by using advanced 3D scaffolds guided by natural tissue cues. Recent advances in additive manufacturing, nanotechnology, and tissue engineering now [...] Read more.
Bone regeneration remains difficult due to the complex bone microenvironment and the limited healing capacity of large defects. Biomimetic strategies offer promising solutions by using advanced 3D scaffolds guided by natural tissue cues. Recent advances in additive manufacturing, nanotechnology, and tissue engineering now allow the fabrication of hierarchical scaffolds that closely mimic native bone. Smart scaffold systems combine materials with biochemical and mechanical signals. These features improve vascularization, enhance tissue integration, and support better regenerative outcomes. Bio-inspired materials also help connect inert implants with living tissues by promoting vascular network formation and improving cell communication. Multiscale design approaches recreate bone nano- to macro-level structure and support both osteogenic activity and immune regulation. Intelligent and adaptive scaffolds are being developed to respond to physiological changes and enable personalized bone repair. This review discusses the current landscape of biomimetic scaffold design, fabrication techniques, material strategies, biological mechanisms, and translational considerations shaping next-generation bone regeneration technologies. Future directions focus on sustainable, clinically translatable biomimetic systems that can integrate with digital health tools for improved treatment planning. Full article
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