Research Progress of Bionic Adaptive Camouflage Materials

Qiao, Yu; Meng, Zihui; Wang, Piaopiao; Yan, Dan Dan

doi:10.3389/fmats.2021.637664

Cited by 22 publications

(18 citation statements)

References 34 publications

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“…Interestingly, natural materials with adaptive behaviors such as bone, teeth, and wood also have piezoelectric properties. [25][26][27] The reader is referred elsewhere for more details on the different efforts found in the literature 19,23,28,29 including studies involving polymers and hydrogels. 24,[30][31][32][33][34][35][36][37] In recent years, different adaptable material systems were reported (Figure 2) 19,20,[38][39][40][41][42][43][44] based on piezoelectric materials (e.g., PVDF, BaTiO 3 , ZnO) as they can generate electric charges/voltages in response to applied mechanical stress, which works as a signal for processes such as inducing polymerization 45 and mineralization.…”

Section: Synthetic Adaptive Materials Systemsmentioning

confidence: 99%

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Mechanically adaptive composites through piezoelectricity

Omar

Sun

Kitchen

et al. 2022

Journal of Composite Materials

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Continuous technological advances resulted in an ever-growing need for novel materials. In conventional engineering materials, cyclic loadings weaken materials by initiating cracks or degrading materials, which leads to premature failure. Contrarily, natural materials such as bones address the issue elegantly. Stress is utilized as a stimulus for material synthesis to strengthen the material. The salient difference between these natural material systems and their synthetic counterparts is their adaptive behavior. Adaptive materials can self-tune their properties in response to stimuli from the environment. Recently, growing attention has been directed towards adaptive materials owing to their autonomous “smart” behavior and multifunctionality. The goal of this article is to discuss the recent efforts in adaptive materials with a focus on mechanically adaptive materials based on piezoelectricity. The rationale behind these material systems is explained as well as an overview of different material systems and their implications. Lastly, we will discuss the challenges to overcome and prospects for future studies.

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Section: Synthetic Adaptive Materials Systemsmentioning

confidence: 99%

“…Interestingly, natural materials with adaptive behaviors such as bone, teeth, and wood also have piezoelectric properties. 25–27 The reader is referred elsewhere for more details on the different efforts found in the literature 19,23,28,29 including studies involving polymers and hydrogels. 24,30–37…”

Section: Introductionmentioning

confidence: 99%

Mechanically adaptive composites through piezoelectricity

Omar

Sun

Kitchen

et al. 2022

Journal of Composite Materials

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“…The camouflage effect of background matching and visual disruption has attracted major attention, especially for military applications. Smart materials and fabrics with adaptive camouflage systems have been developed to mimic the ability of cephalopods to rapidly change their pattern [153]. Disruptive colouration is another camouflage tactic in which the identity and location of a species is disguised through a specific colouration pattern [154].…”

Section: Pigmentary Coloursmentioning

confidence: 99%

Organismal Design and Biomimetics: A Problem of Scale

et al. 2021

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Organisms and their features represent a complex system of solutions that can efficiently inspire the development of original and cutting-edge design applications: the related discipline is known as biomimetics. From the smallest to the largest, every species has developed and adapted different working principles based on their relative dimensional realm. In nature, size changes determine remarkable effects in organismal structures, functions, and evolutionary innovations. Similarly, size and scaling rules need to be considered in the biomimetic transfer of solutions to different dimensions, from nature to artefacts. The observation of principles that occur at very small scales, such as for nano- and microstructures, can often be seen and transferred to a macroscopic scale. However, this transfer is not always possible; numerous biological structures lose their functionality when applied to different scale dimensions. Hence, the evaluation of the effects and changes in scaling biological working principles to the final design dimension is crucial for the success of any biomimetic transfer process. This review intends to provide biologists and designers with an overview regarding scale-related principles in organismal design and their application to technical projects regarding mechanics, optics, electricity, and acoustics.

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“…Camouflage effectiveness evaluation research on weapons has mostly concentrated on camouflage patterns [7][8][9], infrared detection [10][11][12], hyperspectral image processing [13][14][15], coating materials [16][17][18] and is used in different aspects to evaluate camouflage performance or individual ability. However, few studies have evaluated camouflage effectiveness in combination with combat tasks, complex terrain, and reconnaissance means.…”

Section: Introductionmentioning

confidence: 99%