Correlation between Microstructure and Failure Mechanism of Hyriopsis cumingii Shell Structure

Zhang, Zhen; Zhu, Jun; Chu, Yajie; Chen, Zhengnian; Guo, Shun; Xu, Junqiang

doi:10.1007/s42235-019-0102-8

Cited by 11 publications

(3 citation statements)

References 27 publications

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“…[71][72][73][74] In addition to the outermost cuticle, the prismatic layer in the middle and the nacre layer in the inner layer are the main part of mechanical energy dissipation. [75][76][77] Nacre is a typical layered structure, which can deflect cracks and prevent crack propagation, so as to provide toughness and dissipate mechanical energy. [78][79][80][81][82] The architecture of the prismatic layer is used to resist the impact load and wear.…”

Section: Introductionmentioning

confidence: 99%

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Dai

et al. 2023

Advanced Science

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The natural design and coupling of biological structures are the root of realizing the high strength, toughness, and unique functional properties of biomaterials. Advanced architecture design is applied to many materials, including metal materials, inorganic nonmetallic materials, polymer materials, and so on. To improve the performance of advanced materials, the designed architecture can be enhanced by bionics of biological structure, optimization of structural parameters, and coupling of multiple types of structures. Herein, the progress of structural materials is reviewed, the strengthening mechanisms of different types of structures are highlighted, and the impact of architecture design on the performance of advanced materials is discussed. Architecture design can improve the properties of materials at the micro level, such as mechanical, electrical, and thermal conductivity. The synergistic effect of structure makes traditional materials move toward advanced functional materials, thus enriching the macroproperties of materials. Finally, the challenges and opportunities of structural innovation of advanced materials in improving material properties are discussed.

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Section: Introductionmentioning

confidence: 99%

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Dai

et al. 2023

Advanced Science

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“…Biogenic calcium carbonate minerals very often exhibit improved mechanical properties and hierarchically ordered micro- and nanostructures incorporated with about 1–5 wt % organic components. − The mollusk shells are a kind of typical biogenic calcium carbonate minerals with high mechanical properties that can protect soft tissues against deep-sea water pressure, seawater erosion, and predation. − The three most commonly formed phases of calcium carbonate that can be found in biological organisms are calcite, − aragonite, ,,− and vaterite, , while biogenic vaterite is a rare phase in organisms in comparison to the other two phases of calcium carbonates. Biogenic calcites contain prismatic and foliated microstructures . Biogenic aragonite may form hierarchically highly ordered microstructures such as a layered brick and mortar structure of nacre, ,− ,− fiber strips, − and cross-lamellar structures. ,,− , As one kind of typical biogenic aragonite minerals, aragonite cross-lamellar structures also exhibit a tougher feature than geological aragonite.…”

Section: Introductionmentioning

confidence: 99%

“…7−10 The three most commonly formed phases of calcium carbonate that can be found in biological organisms are calcite, 11−14 aragonite, 1,3,15−31 and vaterite, 32,33 while biogenic vaterite is a rare phase in organisms in comparison to the other two phases of calcium carbonates. Biogenic calcites contain prismatic 13 and foliated microstructures. 11 Biogenic aragonite may form hierarchically highly ordered microstructures such as a layered brick and mortar structure of nacre, 2,15−17,21−25 fiber strips, 18−20 and cross-lamellar structures.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Microstructures and Mechanical Properties of the Shells of Tridacna crocea

Song

et al. 2022

Crystal Growth & Design

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Researchers have discovered that the aragonite nanofibers are packed as highly ordered cross-lamellar structures in the shells of Giant clam Tridacna gigas and have excellent mechanical properties. However, differences in the microstructures and mechanical properties between different locations of the shells of Giant clams have not been reported. The microstructures of the shells and the relationship of the micro- and nanostructures and the mechanical properties of the different parts of the shells (main part and rib part) of another kind of Giant clam Tridacna crocea have not been reported yet. In this work, the multilevel ordered micro- and nanostructures in the main part and rib part of the shells of T. crocea were investigated in detail. It shows that both the main part and the rib part are composed of cross-lamellar structures, and the third-order structure (building units) are aragonite nanoribbons, which are densely packed as a self-locking mosaic. This is the first time to report that the building units for the aragonite cross-lamellar structures are nanoribbons instead of nanofibers, while the nanoribbons have particular structural features such as self-locking mosaic packing and dense packing phenomenon on the fractured section. Furthermore, we find that the angles between the long axes of the nanoribbons of the two sets of lamellar structures of the main part and the outer layer of the rib part vary from 120 to 100°, a novel structural feature for cross-lamellar structures. In addition, the mechanical properties such as flexural strength, compressive strength, hardness, and elastic modulus for the different cross sections of different parts of T. crocea were found to be different, and their relationship with the microstructures was studied and discussed. The flexural strength values of the horizontal planes of the main part and the outer layer rib part of the shells of T. crocea are 114.3 ± 2.49 and 118.0 ± 3.74 MPa, respectively, much higher than that of the longitudinal cross sections (79.0 ± 4.55 and 58.7 ± 1.25 MPa, respectively). The compressive strength tests show that the transverse cross sections of the main part and outer layer of the rib part have the highest compressive strength values (221.7 ± 4.82 and 153.3 ± 5.91 MPa, respectively), medium values for the longitudinal cross section (189.0 ± 7.87 and 126.3 ± 9.50 MPa, respectively), and the lowest values for the horizontal plane. The average hardness and elastic modulus values of the transverse and longitudinal cross sections of the rib part gradually increase from the outer to the inner layers. In this work, we show that the mechanical properties are strongly related to the different multilevel ordered assembly modes of micro- and nanostructures.

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Optimal Design and Mechanical Simulation of Rubber bushing with Convex Hull Structure Based on Bionics

Liang

Wang

et al. 2023

J Bionic Eng

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Correlation between Microstructure and Failure Mechanism of Hyriopsis cumingii Shell Structure

Cited by 11 publications

References 27 publications

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Investigation on the Microstructures and Mechanical Properties of the Shells of Tridacna crocea

Optimal Design and Mechanical Simulation of Rubber bushing with Convex Hull Structure Based on Bionics

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