Scale and size effects on the mechanical properties of bioinspired 3D printed two-phase composites

Su, Frances Y.; Sabet, Fereshteh A.; Tang, Katherine; Garner, Sean; Pang, Siyuan; Tolley, Michael T.; Jasiuk, Iwona; McKittrick, Joanna

doi:10.1016/j.jmrt.2020.10.052

Cited by 16 publications

(5 citation statements)

References 42 publications

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“…Although the contact interface area is the same, the mechanical properties are different due to the scale effect of the of microstructure design in nacreous composites. This result agrees with [32], where scale effect was studied for ad- The above results indicate that both the tablet waviness and tablet wave number can affect the mechanical response of the bio-inspired composite proposed in this work. By contrast, the tablet waviness has a greater impact on the composite than the tablet wave number.…”

Section: Simulation Resultssupporting

confidence: 91%

“…Although the contact interface area is the same, the mechanical properties are different due to the scale effect of the of microstructure design in nacreous composites. This result agrees with [32], where scale effect was studied for additively manufactured two-phase composites. It is clear that the strength displays a slight decreasing tend as the wave number increases.…”

Section: Influence Of Tablet Wave Number On Mechanical Behaviorsupporting

confidence: 91%

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Hybrid Bio-Inspired Structure Based on Nacre and Woodpecker Beak for Enhanced Mechanical Performance

et al. 2021

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Materials with high strength and toughness have always been pursued by academic and industrial communities. This work presented a novel hybrid brick-and-mortar-like structure by introducing the wavy structure of the woodpecker beak for enhanced mechanical performance. The effects of tablet waviness and tablet wave number on the mechanical performance of the bio-inspired composites were analyzed. Compared with nacre-like composites with a flat tablet, the strength, stiffness and toughness of the novel hybrid nacre-like composite with tablet wave surface increased by up to 191.3%, 46.6% and 811.0%, respectively. The novel failure mode combining soft phase failure and tablet fracture revealed the key to the high toughness of composites. Finite element simulations were conducted to further explore the deformation and stress distribution of the hybrid brick-and-mortar-like structure. It showed that the hybrid brick-and-mortar-like structure can achieve a much better load transfer, which leads to greater tensile deformation in tablet before fracture, thus improving strength and energy absorption. These investigations have implications in the design of composites with high mechanical performance for aerospace, automobile and other manufacturing industries.

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Section: Simulation Resultssupporting

confidence: 91%

“…Although the contact interface area is the same, the mechanical properties are different due to the scale effect of the of microstructure design in nacreous composites. This result agrees with [32], where scale effect was studied for additively manufactured two-phase composites. It is clear that the strength displays a slight decreasing tend as the wave number increases.…”

Section: Influence Of Tablet Wave Number On Mechanical Behaviorsupporting

confidence: 91%

Hybrid Bio-Inspired Structure Based on Nacre and Woodpecker Beak for Enhanced Mechanical Performance

et al. 2021

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“…Porous carbons also possess remarkable surface properties, including high surface area and a broad range of pore sizes. Moreover, they are cost‐effective and abundantly available in nature [65,66] …”

Section: Brief Introduction To Carbon Materialsmentioning

confidence: 99%

Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

Komal Zafar,

Zainab,

Masood

et al. 2023

The Chemical Record

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Due to ever‐increasing global energy demands and dwindling resources, there is a growing need to develop materials that can fulfil the World's pressing energy requirements. Electrochemical energy storage devices have gained significant interest due to their exceptional storage properties, where the electrode material is a crucial determinant of device performance. Hence, it is essential to develop 3‐D hierarchical materials at low cost with precisely controlled porosity and composition to achieve high energy storage capabilities. After presenting the brief updates on porous carbons (PCs), then this review will focus on the nitrogen (N) doped porous carbon materials (NPC) for electrochemical supercapacitors as the NPCs play a vital role in supercapacitor applications in the field of energy storage. Therefore, this review highlights recent advances in NPCs, including developments in the synthesis of NPCs that have created new methods for controlling their morphology, composition, and pore structure, which can significantly enhance their electrochemical performance. The investigated N‐doped materials a wide range of specific surface areas, ranging from 181.5 to 3709 m2 g−1, signifies a substantial increase in the available electrochemically active surface area, which is crucial for efficient energy storage. Moreover, these materials display notable specific capacitance values, ranging from 58.7 to 754.4 F g−1, highlighting their remarkable capability to effectively store electrical energy. The outstanding electrochemical performance of these materials is attributed to the synergy between heteroatoms, particularly N, and the carbon framework in N‐doped porous carbons. This synergy brings about several beneficial effects including, enhanced pseudo‐capacitance, improved electrical conductivity, and increased electrochemically active surface area. As a result, these materials emerge as promising candidates for high‐performance supercapacitor electrodes. The challenges and outlook in NPCs for supercapacitor applications are also presented. Overall, this review will provide valuable insights for researchers in electrochemical energy storage and offers a basis for fabricating highly effective and feasible supercapacitor electrodes.

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“…Geometric tolerances of AM methods for polymers can vary [36,37], and although the geometric uncertainty of 3D inkjet printing has not been investigated in the literature, Stratasys specify a highest tolerance of around ±0.06% of the dimensions of the object, down to a minimum of ±100 μm for objects less than 100 mm in length [38]. The material properties of 3D inkjet printed parts are also dependent on layer thickness and orientation [39], and on scale [40]. Uncertainties in the geometry and material properties have the potential to cause disorder in the metamaterial, which as already discussed, could impact the performance.…”

Section: Introductionmentioning

confidence: 99%

A Robust Optimised Multi-Material 3d Inkjet Printed Elastic Metamaterial

Singleton¹,

Cheer²,

Bastola³

et al. 2023

Preprint

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Scale and size effects on the mechanical properties of bioinspired 3D printed two-phase composites

Cited by 16 publications

References 42 publications

Hybrid Bio-Inspired Structure Based on Nacre and Woodpecker Beak for Enhanced Mechanical Performance

Hybrid Bio-Inspired Structure Based on Nacre and Woodpecker Beak for Enhanced Mechanical Performance

Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

A Robust Optimised Multi-Material 3d Inkjet Printed Elastic Metamaterial

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