Impact resistance of biomimetic gradient sinusoidal composites by 3D printing: Tunable structural stiffness and damage tolerance

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2024-11-26 DOI:10.1016/j.compositesb.2024.112016

Junfan Shang , Fei Liu , Jiarui Zhang , Baoning Chang , Chenkai Zhu , Wuxiang Zhang , Yingdan Zhu , Xilun Ding

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引用次数: 0

Abstract

Taking inspiration from the remarkable impact resistance of the dactyl club of Odontodactylus scyllarus and utilizing the material extrusion-based 3D printing process for continuous fiber reinforced composites (CFRCs), the biomimetic gradient sinusoidal CFRCs (BGS-CFRCs) was designed and manufactured. This material combines the bidirectional sinusoidal structure with a gradient layering configuration, mimicking the natural design found in the dactyl club. Experimental tests revealed that BGS-CFRCs achieved a Charpy impact strength of up to 63.24 kJ/m², surpassing flat-layered polylactic acid (PLA) and continuous carbon fiber reinforced PLA (CCF/PLA) specimens by 143 % and 80 %, respectively. Moreover, BGS-CFRCs exhibited tunable structural stiffness and damage tolerance. This can be attributed to the innovative in-plane fiber architecture and out-of-plane material gradient, revealing the synergistic effects of composite materials, bidirectional sinusoidal structure, and gradient layering configuration. Overall, this study combines multi-degree-of-freedom 3D printing of CFRCs with biomimetic structural design, providing new dimensions of design space. This breakthrough surpasses the limitations of traditional additive manufacturing techniques and structural design of composites, opening new possibilities for developing next-generation high-performance structural materials.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.