Bioinspired approaches for toughening of fibre reinforced polymer composites

Amorim, Luís Manuel Machado; Santos, A.; Nunes, João Arriscado; Viana, J. C.

doi:10.1016/j.matdes.2020.109336

Cited by 34 publications

(19 citation statements)

References 261 publications

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“…Understanding the diverse mechanisms by which organisms achieve exceptionally high mechanical properties may enable the development of unique, biologically inspired materials [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. In fact, bio-inspired materials with excellent functional and mechanical properties have been reported [ 9 , 10 , 11 , 12 , 13 , 14 ]. The exoskeleton that covers the outside of the arthropod body is very hard, and its hardness is associated with calcification and tissue structure [ 15 , 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Structural Changes and Mechanical Resistance of Claws and Denticles in Coconut Crabs of Different Sizes

Inoue

Oka

Nakazato

et al. 2021

Biology

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The exoskeleton of the pinching side of claws with denticles and of the outer side without them on the coconut crab, Birgus latro, which is a rare organism, were studied using a materials science approach. The mechanical resistance of three claws of different sizes was investigated along the exoskeleton thickness from the outer surface to the inner surface, and the results were compared, including the contribution of the microstructure and chemical compositions. Mechanical properties, hardness (H) and stiffness (Er), were probed through nanoindentation tests. The results showed the H, Er, microstructures, and chemical components of the exocuticle and endocuticle layers were almost the same, in a BW range of 300 g to 1650 g. At the same time, the H and Er near the surface of the denticles of a small coconut crab of 300 g were lower than those of other large coconut crabs. The microstructure of the denticles was clearly different from that of the exocuticle, but the maximum mechanical properties near their surface indicated almost the same values, Hmax = 4 GPa and Er(max) = 70 GPa, regardless of being on the pinching side or the outer side. A denticle can be regarded as a bulge of the cuticle without phosphorus and with high magnesium. The results provided novel information that expanded our knowledge about the claw microstructure of coconut crabs with different body sizes, and may be used in further studies

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Section: Introductionmentioning

confidence: 99%

Structural Changes and Mechanical Resistance of Claws and Denticles in Coconut Crabs of Different Sizes

Inoue

Oka

Nakazato

et al. 2021

Biology

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“…The shell has the characteristics of high toughness and high strength, which is composed of the outermost stratum corneum, the middle columnar aragonite layer and the inner pearl layer, as shown in Figure 2 13 . At the same time, the high toughness of the shell mainly comes from the nacre in the middle 18,19 . Nacre is a composite composed of 95 Vol% aragonite flakes and 5 Vol% proteins, with elastic modulus, tensile strength, and breaking work of 70 GPa, 170 GPa, and 350–1240 J/m 2 , respectively, and its toughness is about 3000 of calcium carbonate material 12,20 .…”

Section: Natural Phenomenamentioning

confidence: 99%

“…However, due to the complexity of the process of preparing helical materials, the preparation of biomimetic helical materials was not popular until advances in additive manufacturing technology. Moreover, it has been widely used in polymer materials, 19,208–211 while it has been rarely used in ceramic materials. Feilden et al 31 .…”

Section: Performance Evaluation and Applicationmentioning

confidence: 99%

Research and application of biomimetic modified ceramics and ceramic composites: A review

Li,

Guo,

Huang

et al. 2023

J Am Ceram Soc.

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Ceramic materials are widely used in engineering field because of their good physical and chemical properties. The poor mechanical properties of traditional ceramics seriously limit the development of ceramic materials and have attracted extensive attention since its birth. The development of high toughness, light weight, and functional ceramic materials has long been the pursuit of materials scientists. Since ancient times, nature has been the source of all kinds of human technological ideas, engineering principles, and major inventions. The functional structure of biology provides a good research object for the bionic design and preparation of ceramic materials. Therefore, it is necessary to summarize the functional structures and mechanisms in nature and biomimetic preparation technology. The purpose of this review is to provide guidance for the functionalized biomimetic design and efficient preparation of ceramic materials. Some typical functional examples in nature are introduced in detail, and several representative biomimetic preparation methods are listed. Finally, the performance and application status of biomimetic ceramics are summarized, and the future development direction of biomimetic ceramic materials is prospected.

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“…The incorporation of functional nanofillers is the most straightforward and efficient method to achieve functional integration. − Care must be taken in the trade-off between functions and properties so we innovatively propose noncovalently driven self-assembled gradient nanostructures to handle it.…”

Section: Noncovalent Assembled Gradient Nanostructurementioning

confidence: 99%

Robust, Healable, Self-Locomotive Integrated Robots Enabled by Noncovalent Assembled Gradient Nanostructure

Wang

et al. 2022

Nano Lett.

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Integration, being lightweight, and intelligence are important orientations for the future advancement of soft robots. However, existing soft robots are generally hydrogels or silicone rubber, which are inherently mechanically inferior and easily damaged and difficult to integrate functions. Here, inspired by nacre, an elastomer actuator with sulfonated graphene-based gradient nanostructures is constructed via supramolecular multiscale assembly. The resulting nanocomposite possesses an ultrahigh toughness of 141.19 MJ/m3 and high room-temperature self-healing efficiency (89%). The proof-of-concept robot is demonstrated to emphasize its maximum swimming speed of 2.67 body length per second, whose speed is comparable to that of plankton, representing the outperformance of most artificial soft robots. Furthermore, the robot can stably absorb pollutants and recover its robustness and functionality even when damaged. This study breaks the mutual exclusivity of functional execution and fast locomotions, and we anticipate that our nanostructural design will offer an effective extended path to other integrated robots that required multifunction integration.

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Bioinspired approaches for toughening of fibre reinforced polymer composites

Cited by 34 publications

References 261 publications

Structural Changes and Mechanical Resistance of Claws and Denticles in Coconut Crabs of Different Sizes

Structural Changes and Mechanical Resistance of Claws and Denticles in Coconut Crabs of Different Sizes

Research and application of biomimetic modified ceramics and ceramic composites: A review

Robust, Healable, Self-Locomotive Integrated Robots Enabled by Noncovalent Assembled Gradient Nanostructure

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