Tussah cocoon's biomechanism: Fractal insight and experimental verification

Xue, Rujing; Mo, Xiao-Xuan; Liu, Fujuan

doi:10.1016/j.ijthermalsci.2021.107089

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…Xo, et al [2] revealed the mechanism of heat prevention for cocoon-like hierarchy. Xue, et al [3] further elucidated cocoon's biomechanism using the fractal theory. Hierarchical porous materials are now widely used for high-rate electrochemical capacitive energy storage [4], supercapacitors [5] and energy harvesting [6,7].…”

Section: Introductionmentioning

confidence: 99%

Fractal Dimensions of a Porous Concrete and Its Effect on the Concrete’s Strength

He,

Liu

2023

FU Mech Eng

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All mechanical properties of a porous medium depend upon its fractal dimensions, however, how to measure the fractal dimensions is still an open issue. This paper adopts the two-scale fractal theory to calculate fast and effectively the fractal dimensions of a porous concrete. Of the concrete's properties that have been fascinating engineers and scientists, by far the most perplexing is the effects of its porosity and pore size on concrete's strength. Though there were many ad hoc empirical formulae for predicting the strength, much deviation arose for practical applications. Here a dimensionless model and the fractal theory are adopted to insight theoretically into the effects, and for the first time ever, some physically relative and mathematically reliable formulations are proposed. Additionally nano/micro particles’ size and distribution can also be used for theoretical prediction of the concrete’s strength, it shows that the boundary-induced force occurs when the particles tend to micro/nanoscales. The present theory sheds new light on the optimal design of various functional concretes.

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Section: Introductionmentioning

confidence: 99%

Fractal Dimensions of a Porous Concrete and Its Effect on the Concrete’s Strength

He,

Liu

2023

FU Mech Eng

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Recent Progress of Bionic Hierarchical Structure in the Field of Thermal Insulation Protection

Zhuge

Liu

2023

J Bionic Eng

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Some living organisms with hierarchical structures in nature have received extensive attention in various fields. The hierarchical structure with multiple pores, a large number of solid–gas interfaces and tortuous conduction paths provide a new direction for the development of thermal insulation materials, making the living creatures under these extreme conditions become the bionic objects of scientific researchers. In this review, the research progress of bionic hierarchical structure in the field of heat insulation is highlighted. Polar bears, cocoons, penguin feathers and wool are typical examples of heat preservation hierarchy in nature to introduce their morphological characteristics. At the same time, the thermal insulation mechanism, fractal model and several preparation methods of bionic hierarchical structures are emphatically discussed. The application of hierarchical structures in various fields, especially in thermal insulation and infrared thermal stealth, is summarised. Finally, the hierarchical structure is prospected.

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Innovative preparation of polyimide/polysulfone amide (PI/PSA) membrane-pore-like nanofibers with biomimetic penguin feather shaft structure and thermal insulation performances

Zhuge,

Ge,

Liu

2025

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Tussah cocoon's biomechanism: Fractal insight and experimental verification

Cited by 7 publications

References 34 publications

Fractal Dimensions of a Porous Concrete and Its Effect on the Concrete’s Strength

Fractal Dimensions of a Porous Concrete and Its Effect on the Concrete’s Strength

Recent Progress of Bionic Hierarchical Structure in the Field of Thermal Insulation Protection

Innovative preparation of polyimide/polysulfone amide (PI/PSA) membrane-pore-like nanofibers with biomimetic penguin feather shaft structure and thermal insulation performances

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