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Journal articles on the topic 'Bio-inspired material'

Author: Grafiati

Published: 10 September 2021

Last updated: 1 February 2022

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1

Stögerer, Johannes, Sonja Baumgartner, Alexander Hochwallner, and Jürgen Stampfl. "Bio-Inspired Toughening of Composites in 3D-Printing." Materials 13, no. 21 (October 22, 2020): 4714. http://dx.doi.org/10.3390/ma13214714.

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Natural materials achieve exceptional mechanical properties by relying on hierarchically structuring their internal architecture. In several marine species, layers of stiff and hard inorganic material are separated by thin compliant organic layers, giving their skeleton both stiffness and toughness. This phenomenon is fundamentally based on the periodical variation of Young’s modulus within the structure. In this study, alteration of mechanical properties is achieved through a layer-wise build-up of two different materials. A hybrid 3D-printing device combining stereolithography and inkjet printing is used for the manufacturing process. Both components used in this system, the ink for jetting and the resin for structuring by stereolithography (SLA), are acrylate-based and photo-curable. Layers of resin and ink are solidified separately using two different light sources (λ1 = 375 nm, λ2 = 455 nm). Three composite sample groups (i.e., one hybrid material, two control groups) are built. Measurements reveal an increase in fracture toughness and elongation at break of 70% and 22%, respectively, for the hybrid material compared to the control groups. Moreover, the comparison of the two control groups shows that the effect is essentially dependent on different materials being well contained within separated layers. This bio-inspired building approach increases fracture toughness of an inherently brittle matrix material.

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Budholiya, Sejal, Aayush Bhat, S. Aravind Raj, Mohamed Thariq Hameed Sultan, Ain Umaira Md Shah, and Adi A. Basri. "State of the Art Review about Bio-Inspired Design and Applications: An Aerospace Perspective." Applied Sciences 11, no. 11 (May 29, 2021): 5054. http://dx.doi.org/10.3390/app11115054.

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The field of bio-inspired design has tremendously transitioned into newer automated methods, yet there are methods being discovered which can elucidate underlying principles in design, materials, and manufacturing. Bio-inspired design aims to translate knowledge from the natural world to the current trends in industry. The recent growth in additive manufacturing (AM)methods has fueled the tremendous growth of bio-inspired products. It has enabled the production of intricate and complicated features notably used in the aerospace industry. Numerous methodologies were adopted to analyse the process of bio-inspired material selection, manufacturing methods, design, and applications. In the current review, different approaches are implemented to utilize bio-inspired designs that have revolutionized the aerospace industry, focusing on AM methods.

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3

Shen, Xinhui, Jinguo Liu, Pengwei Zhang, Zhiyu Ni, and Yuwang Liu. "Analysis of the dynamic mechanical property of multiple direction impact protection structure inspired by C60 molecule." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 17 (July 11, 2019): 5919–32. http://dx.doi.org/10.1177/0954406219862302.

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The natural structures have excellent dynamic mechanical properties. In this work, an impact protection structure inspired by the C60 molecule was proposed. And a model of a hollow ball protected by the bio-inspired C60 molecular structure during a drop testing was built. For the bio-inspired C60 molecular structure, the drop process and the dynamic mechanical property was investigated by LS-DYNA software. The results indicate that the bio-inspired C60 molecular structure has a good ability to protect against impact. Furthermore, the effects of the diameter ratio, materials, drop height, and angle were discussed. These variations of geometry and material can influence the dynamic mechanical properties of the bio-inspired C60 molecular impact protection structure.

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4

Zheng, Wendong, Bowen Wang, Huaping Liu, Xiaodong Wang, Yongjian Li, and Changgeng Zhang. "Bio-Inspired Magnetostrictive Tactile Sensor for Surface Material Recognition." IEEE Transactions on Magnetics 55, no. 7 (July 2019): 1–7. http://dx.doi.org/10.1109/tmag.2019.2898546.

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Coyle, Stephen, Carmel Majidi, Philip LeDuc, and K. Jimmy Hsia. "Bio-inspired soft robotics: Material selection, actuation, and design." Extreme Mechanics Letters 22 (July 2018): 51–59. http://dx.doi.org/10.1016/j.eml.2018.05.003.

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6

Rudykh, Stephan, Christine Ortiz, and Mary C. Boyce. "Flexibility and protection by design: imbricated hybrid microstructures of bio-inspired armor." Soft Matter 11, no. 13 (2015): 2547–54. http://dx.doi.org/10.1039/c4sm02907k.

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Inspired by the imbricated scale-tissue flexible armor of elasmoid fish, we design hybrid stiff plate/soft matrix material architectures. Indentation and bending tests on bio-inspired 3D-printed prototype materials reveal their ability to provide protection against penetration while preserving flexibility.

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7

Yamaguchi, Takeo, Taichi Ito, and Shuhei Okajima. "Systematic Material Design for Bio-system Inspired Molecular Recognition Membranes." MEMBRANE 30, no. 3 (2005): 124–31. http://dx.doi.org/10.5360/membrane.30.124.

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8

Huang, Jinhua, Helen Durden, and Mostafiz Chowdhury. "Bio-inspired armor protective material systems for ballistic shock mitigation." Materials & Design 32, no. 7 (August 2011): 3702–10. http://dx.doi.org/10.1016/j.matdes.2011.03.061.

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9

Zhao, Weijie. "Bio-inspired superwettable materials: an interview with Lei Jiang." National Science Review 4, no. 5 (September 1, 2017): 781–84. http://dx.doi.org/10.1093/nsr/nwx140.

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Abstract Scientists have been aware of the phenomenon of superwettability for more than two centuries. In 1805, British scientist Thomas Young introduced the concept of the contact angle to evaluate the wettability of liquid on a solid material surface. Superwettable materials have only become a fast-developing research area over the past two decades, with scientists beginning to investigate and mimic the micro-/nanostructures of natural superwettable materials. Elucidation of the micro-/nanostructures of natural superwettable materials, from superhydrophobic lotus leaves and superhydrophilic spider silk to superoleophobic (oil-repelling) fish scales, has greatly propelled the development of this field. Superwettable materials have found wide applications such as liquid–liquid separation, sensors and energy conversion devices. Lei Jiang, an academician of the Chinese Academy of Sciences, a fellow of The World Academy of Sciences (TWAS) and a foreign member of the US National Academy of Engineering, is a pioneer in the field of bio-inspired superwettable materials. He proposed the ‘binary cooperative complementary principle’ that nanoscale structural arrangements of two materials with complementary properties can result in functional macroscopic materials, which provided a framework for the design of superwettable materials. In this recent NSR interview, Jiang discussed the theory and applications of this field over the past two decades, and reflected upon innovative scientific research in general.

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10

Fischer, Parks, and Mannhart. "Bio-Inspired Synthetic Ivory as a Sustainable Material for Piano Keys." Sustainability 11, no. 23 (November 20, 2019): 6538. http://dx.doi.org/10.3390/su11236538.

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Natural ivory is no longer readily or legally available, as it is obtained primarily from elephant tusks, which now enjoy international protection. Ivory, however, is the best material known for piano keys. We present a hydroxylapatite–gelatin biocomposite that is chemically identical to natural ivory but with functional properties optimized to replace it. As this biocomposite is fabricated from abundant materials in an environmentally friendly process and is furthermore biodegradable, it is a sustainable solution for piano keys with the ideal functional properties of natural ivory.

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11

Hashemi Farzaneh, Helena, Ferdinand Angele, and Markus Zimmermann. "Bio-Inspired Design for Additive Manufacturing - Case Study: Microtiter Plate." Proceedings of the Design Society: International Conference on Engineering Design 1, no. 1 (July 2019): 289–98. http://dx.doi.org/10.1017/dsi.2019.32.

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AbstractBio-inspired design is an innovative methodology for transferring biological solutions into technical solutions, for example for the design of weight- and load-optimized components. Bio-inspired design therefore offers great potential for meeting the challenges of designing additively manufactured components, such as avoiding warpage, supporting structures and material minimisation. Nevertheless, apart from bio-inspired topology optimization tools, bio-inspired design is rarely used in industrial practice because for many companies the practical applicability up to the prototype is not obvious. The aim of this work is therefore a practical approach to the search for biological systems, analysis, abstraction and transfer of analogies. We apply bio-inspired design on the design of a microtiter plate manufactured by stereolithography, whose dimensional accuracy is impaired by warpage. Here, the venus’ flower basket, a deep-sea sponge, can serve as a model. It has a hierarchical structure of silicate needles whose elements are abstracted for bio-inspired transfer. We show and evaluate the transfer of different analogies using a prototype.

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12

Gu, Wenbin, Yuxin Li, Kun Zheng, and Minghai Yuan. "A bio-inspired scheduling approach for machines and automated guided vehicles in flexible manufacturing system using hormone secretion principle." Advances in Mechanical Engineering 12, no. 2 (February 2020): 168781402090778. http://dx.doi.org/10.1177/1687814020907787.

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The product quality and production efficiency of a flexible manufacturing system have improved effectively by introducing the computer management and the material transportation system. The flexible manufacturing system performance greatly depends on the performance of the material transportation system. As a mobile robot controlled by a central controller, an automated guided vehicle has a strong ability for material transportation. This article studies a dynamic scheduling problem in a shop floor, where machines and automated guided vehicles run at a specified speed and specifies a mathematical model for the dynamic scheduling problem with the goal of makespan minimization. Meanwhile, inspired by the hormone secretion principle of the endocrine system, a bio-inspired scheduling optimization approach is developed to solve the dynamic scheduling problem in the flexible manufacturing system. To verify its practical application, the bio-inspired scheduling optimization approach and other scheduling approaches are tested, and the results illustrate that the bio-inspired scheduling optimization approach has better scheduling performance as well as optimizes the quality of integrated and real-time scheduling of machines and automated guided vehicles.

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13

Shi, Ye, Jun Zhang, Lijia Pan, Yi Shi, and Guihua Yu. "Energy gels: A bio-inspired material platform for advanced energy applications." Nano Today 11, no. 6 (December 2016): 738–62. http://dx.doi.org/10.1016/j.nantod.2016.10.002.

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14

Qiao, Rui, Ce Guo, Chun Sheng Zhu, Zhen Dong Dai, and Xiao Ting Jiang. "Study on Design of Metallic Sandwish Structure and its Mechanical and Thermal Properties." Applied Mechanics and Materials 461 (November 2013): 85–94. http://dx.doi.org/10.4028/www.scientific.net/amm.461.85.

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Based on the microstructure of the beetles elytras cross-section, a bio-inspired metallic structure was designed. The mechanical property and the thermal property of the structure were analyzed with finite element method, and the compressive force-displacement curve and temperature distribution the structure were obtained, respectively. At the same time, the bio-inspired metallic structure sample was made with the material of the stainless steel sheet, and the quasi-static experiment and the thermal experiment of the structure were carried out. Comparing the experimental results with the FEM analysis, the results proved both the accuracy and reliability of FEM. Key words:beetle elytra;microstructure;bio-inspired structure; finite element analysis

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15

Manno, Riccardo, Wei Gao, and Ivano Benedetti. "A Computational Study on Crack Propagation in Bio-Inspired Lattices." Key Engineering Materials 774 (August 2018): 398–404. http://dx.doi.org/10.4028/www.scientific.net/kem.774.398.

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A computational preliminary study on the fracture behaviour of two kinds of finite-size bio-inspired lattice configurations is presented. The study draws inspiration from recent investigations aimed at increasing the fracture energy of some materials through small modifications of their microstructure. Nature provides several examples of strategies used to delay or arrest damage initiation and crack propagation. Striking examples are provided by the micro-architecture of several kinds of wood. In this study, the effects on crack propagations induced by architectural alterations inspired by the microstructure of wood are computationally investigated. In an age in which tight control of the micro-architecture can be achieved, e.g. through high-resolution 3D printing, it is of interest to investigate whether, starting from a baseline cellular architecture, it is possible to achieve superior material performance by simple but smart topological modifications.

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16

Cecoltan, Sergiu, Daniela G. Petre, Eliza Georgeta Stan, Eugeniu Vasile, Horia Emil Cioflan, Mircea Istodorescu, Ioan Cristescu, Rodica Marinescu, Dan Laptoiu, and Izabela Cristina Stancu. "Alginate Used to Develop Bio-Inspired Composite Microparticles for Bone Regeneration." Key Engineering Materials 638 (March 2015): 20–26. http://dx.doi.org/10.4028/www.scientific.net/kem.638.20.

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This work describes the synthesis of composite particles for bone regeneration. The developed method is based on a bio-inspired approach starting from the composition, properties and hierarchical organization of bone extracellular matrix (ECM). The composite material was designed as spherical particles able to ensure interconnected porosity through their assembling inside the bone defect. nanohydroxyapatite was generated in the organic matrix in order to mimic the composition and the organization of the mineral phase in bone tissue. A collagen derivative was used as main natural polymer of the organic matrix of the composite material, in order to mimic the composition of bone ECM. Alginate represents the second organic polymer due to its recognized capacity to easily generate spherical particles in divalent cations solutions. The combination of this polysaccharide with the two previously mentioned components simultaneously responds the architectural and compositional constraints of this approach. The particles were obtained using a modular electrostatic bead generator developed in our laboratory. Briefly, a solution containing the biopolymers was extruded into a mineralisation solution. Spherical particles with diameters of about 500 μm were obtained. They were characterised by scanning electron microscopy, X-ray diffraction, stability in aqueous media. The obtained results confirmed the importance of alginate to generate spherical particles and the potential of such materials to successfully serve the targeted application.

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17

Zhao, Chunyu, Mei Zhu, Ye Fang, Xiaoman Liu, Lei Wang, Dafa Chen, and Xin Huang. "Engineering proteinosomes with renewable predatory behaviour towards living organisms." Materials Horizons 7, no. 1 (2020): 157–63. http://dx.doi.org/10.1039/c9mh00976k.

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18

Garcia-Cirera, Beltzane, Montserrat Corbella, Laurent Bonneviot, and Belén Albela. "Bio-inspired manganese mesoporous silica hybrid material as a water compatible antioxidant." Microporous and Mesoporous Materials 261 (May 2018): 150–57. http://dx.doi.org/10.1016/j.micromeso.2017.10.034.

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19

Porter, Michael M., Nakul Ravikumar, Francois Barthelat, and Roberto Martini. "3D-printing and mechanics of bio-inspired articulated and multi-material structures." Journal of the Mechanical Behavior of Biomedical Materials 73 (September 2017): 114–26. http://dx.doi.org/10.1016/j.jmbbm.2016.12.016.

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20

Wasser, Lionel, Sara Dalle Vacche, Feyza Karasu, Luca Müller, Micaela Castellino, Alessandra Vitale, Roberta Bongiovanni, and Yves Leterrier. "Bio-Inspired Fluorine-Free Self-Cleaning Polymer Coatings." Coatings 8, no. 12 (November 28, 2018): 436. http://dx.doi.org/10.3390/coatings8120436.

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Bio-inspired fluorine-free and self-cleaning polymer coatings were developed using a combination of self-assembly and UV-printing processes. Nasturtium and lotus leaves were selected as natural template surfaces. A UV-curable acrylate oligomer and three acrylated siloxane comonomers with different molecular weights were used. The spontaneous migration of the comonomers towards the polymer–air interface was found to be faster for comonomers with higher molecular weight, and enabled to create hydrophobic surfaces with a water contact angle (WCA) of 105°. The replication fidelity was limited for the nasturtium surface, due to a lack of replication of the sub-micron features. It was accurate for the lotus leaf surface whose hierarchical texture, comprising micropapillae and sub-micron crystalloids, was well reproduced in the acrylate/comonomer material. The WCA of synthetic replica of lotus increased from 144° to 152° with increasing creep time under pressure to 5 min prior to polymerization. In spite of a water sliding angle above 10°, the synthetic lotus surface was self-cleaning with water droplets when contaminated with hydrophobic pepper particles, provided that the droplets had some kinetic energy.

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21

Wang, Yong, Kun Zhao, Xiang-Yu Lu, Yu-Bao Song, and Gareth J. Bennett. "Bio-Inspired Aerodynamic Noise Control: A Bibliographic Review." Applied Sciences 9, no. 11 (May 30, 2019): 2224. http://dx.doi.org/10.3390/app9112224.

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It is well-known that many species of owl have the unique ability to fly silently, which can be attributed to their distinctive and special feather adaptations. Inspired by the owls, researchers attempted to reduce the aerodynamic noise of aircraft and other structures by learning their noise reduction features from different viewpoints and then using the gained knowledge to develop a number of innovative noise reduction solutions. Although fruitful results have been achieved in the bio-inspired aerodynamic noise control, as far as the authors know, comparatively little work has been done to summarize the main findings and progresses in this area. In this bibliographic survey, we systematically review the progresses and trends of the bio-inspired aerodynamic noise control, including the macroscopic and microscopic morphological characteristics of the owl wing feathers, the noise measurements on both flying birds in the field and prepared wings in the wind tunnel, as well as theoretical, numerical and experimental studies that explored the feasibility, parameter influence, aerodynamic effects and underlying mechanisms of the four main bio-inspired noise reduction techniques, i.e., leading edge serrations, trailing edge serrations, fringe-type trailing edge extensions and porous material inspired noise reduction. Finally, we also give some suggestions for future work.

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22

Abry, Sébastien, Ping Zhang, Belén Albela, and Laurent Bonneviot. "Site isolation and coordination control of a transition metal ion by molecular surface engineering in mesoporous silica: the case of a bio-inspired copper–polyamine grafted complex." RSC Adv. 4, no. 108 (2014): 62903–11. http://dx.doi.org/10.1039/c4ra10109j.

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23

Li, Jiao, and Jianguo Huang. "A nanofibrous polypyrrole/silicon composite derived from cellulose substance as the anode material for lithium-ion batteries." Chemical Communications 51, no. 78 (2015): 14590–93. http://dx.doi.org/10.1039/c5cc05300e.

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24

Tramsen, Halvor T., Stanislav N. Gorb, Hao Zhang, Poramate Manoonpong, Zhendong Dai, and Lars Heepe. "Inversion of friction anisotropy in a bio-inspired asymmetrically structured surface." Journal of The Royal Society Interface 15, no. 138 (January 2018): 20170629. http://dx.doi.org/10.1098/rsif.2017.0629.

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Friction anisotropy is an important property of many surfaces that usually facilitate the generation of motion in a preferred direction. Such surfaces are very common in biological systems and have been the templates for various bio-inspired materials with similar tribological properties. So far friction anisotropy is considered to be the result of an asymmetric arrangement of surface nano- and microstructures. However, here we show by using bio-inspired sawtooth-structured surfaces that the anisotropic friction properties are not only controlled by an asymmetric surface topography, but also by the ratio of the sample–substrate stiffness, the aspect ratio of surface structures, and by the substrate roughness. Systematically modifying these parameters, we were able to demonstrate a broad range of friction anisotropies, and for specific sample–substrate combinations even an inversion of the anisotropy. This result highlights the complex interrelation between the different material and topographical parameters on friction properties and sheds new light on the conventional design paradigm of tribological systems. Finally, this result is also of great importance for understanding functional principles of biological materials and surfaces, as such inversion of friction anisotropy may correlate with gait pattern and walking behaviour in climbing animals, which in turn may be used in robotic applications.

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25

Montesano, Camilla, Manuel Sergi, German Perez, Roberta Curini, Dario Compagnone, and Marcello Mascini. "Bio-inspired solid phase extraction sorbent material for cocaine: A cross reactivity study." Talanta 130 (December 2014): 382–87. http://dx.doi.org/10.1016/j.talanta.2014.07.017.

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26

Tian, Limei, E. Jin, Haoran Mei, Qingpeng Ke, Ziyuan Li, and Hailin Kui. "Bio-inspired Graphene-enhanced Thermally Conductive Elastic Silicone Rubber as Drag Reduction Material." Journal of Bionic Engineering 14, no. 1 (March 2017): 130–40. http://dx.doi.org/10.1016/s1672-6529(16)60384-0.

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27

Xu, Xun, Liping Heng, Xiaojuan Zhao, Jie Ma, Ling Lin, and Lei Jiang. "Multiscale bio-inspired honeycomb structure material with high mechanical strength and low density." Journal of Materials Chemistry 22, no. 21 (2012): 10883. http://dx.doi.org/10.1039/c2jm31510f.

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28

Tsunenari, Satsuki, and Tetsuo Oya. "Method for evaluating mechanical characteristics of biological material for bio-inspired lightweight design." Computer-Aided Design and Applications 13, no. 4 (January 8, 2016): 503–10. http://dx.doi.org/10.1080/16864360.2015.1131545.

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29

Soomro, Afaque Manzoor, Fida Hussain Memon, Jae-Wook Lee, Faheem Ahmed, Kyung Hwan Kim, Young Su Kim, and Kyung Hyun Choi. "Fully 3D printed multi-material soft bio-inspired frog for underwater synchronous swimming." International Journal of Mechanical Sciences 210 (November 2021): 106725. http://dx.doi.org/10.1016/j.ijmecsci.2021.106725.

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30

Li, Yong Feng, Yi Xing Liu, Yun Lin Fu, Qing Lin Wu, and Xiang Ming Wang. "Durability Improvement of Bio-Based Material by Polymer." Materials Science Forum 675-677 (February 2011): 495–98. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.495.

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Bio-based materials such as wood, bamboo, bio-straw material are vulnerable to degradation by microorganisms and susceptible to change in dimension under humidity, which greatly reduced their service life. In this study, a novel thought was inspired from the unique porous structure of bio-based material that durability of wood may be capable of being improved by generating polymer in situ the special structure. Maleic anhydride (Man) and Styrene (St) were used to penetrate into wood for further copolymerization. SEM observation shows that polymer filled in wood porous structure and tightly contacted wood matrix (i.e. biopolymers), indicating strong interaction between them. FTIR analysis indicates that polymer chemically grafted onto wood matrix by reaction of anhydride group and hydroxyl group. As the amount of hydroxyl groups greatly reduced for their reacting with polymer, the dimensional stability of wood immersing in water was improved; and as the reaction of wood with polymer, the biopolymers were wrapped by resultant polymer, preventing the sample from attack of microorganisms, thus decay resistance of treated wood against microorganisms was greatly improved. Both of them contributed to the improvement of wood durability.

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31

Ding, Bin, Dong Li, and Yuli Chen. "A Novel Long Short-Term Memory Based Optimal Strategy for Bio-Inspired Material Design." Nanomaterials 11, no. 6 (May 25, 2021): 1389. http://dx.doi.org/10.3390/nano11061389.

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Biological materials have attracted a lot of attention due to their simultaneous superior stiffness and toughness, which are conventionally attributed to their staggered structure (also known as brick and mortar) at the most elementary nanoscale level and self-similar hierarchy at the overall level. Numerous theoretical, numerical, and experimental studies have been conducted to determine the mechanism behind the load-bearing capacity of the staggered structure, while few studies focus on whether the staggered structure is globally optimal in the entire design space at the nanoscale level. Here, from the view of structural optimization, we develop a novel long short-term memory (LSTM) based iterative strategy for optimal design to demonstrate the simultaneous best stiffness and toughness of the staggered structure. Our strategy is capable of both rapid discovery and high accuracy based on less than 10% of the entire design space. Besides, our strategy could obtain and maintain all of the best sample configurations during iterations, which can hardly be done by the convolutional neural network (CNN)-based optimal strategy. Moreover, we discuss the possible future material design based on the failure point of the staggered structure. The LSTM-based optimal design strategy is general and universal, and it may be employed in many other mechanical and material design fields with the premise of conservation of mass and multiple optimal sample configurations.

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Zhang, Yuwu, Yuliang Lin, and Xiangcheng Li. "Plastic Crushing Failure of Bio-Inspired Cellular Hierarchical Topological Sandwich Core." Materials 14, no. 17 (September 3, 2021): 5040. http://dx.doi.org/10.3390/ma14175040.

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Bio-inspired self-similar hierarchical honeycombs are multifunctional cellular topologies used for resisting various loadings. However, the crushing behavior under large plastic deformation is still unknown. This paper investigates the in-plane compressive response of selective laser melting (SLM) fabricated hierarchical honeycombs. The effects of hierarchical order, relative density as well as constituent material are evaluated. The results show that at small deformation, the AlSi10Mg alloy hierarchical honeycombs show great advantages over the elastic modulus and compressive strength than 316L steel hierarchical honeycombs. As the relative density and hierarchical order increase, the failure mechanism of AlSi10Mg alloy honeycombs gradually changes from a bending-dominated mode to a fracture-dominated mode; whereas all the 316L steel honeycombs fail due to the distortion of original unit cells. At large deformation, the AlSi10Mg alloy honeycombs behave with brittle responses, while the 316L steel honeycombs exhibit ductile responses, showing a negative Poisson’s ratio behavior and gradient deformation of hierarchical unit cells. The addition of unit cell refinements improves the elastic modulus of AlSi10Mg alloy honeycombs and advances the densification of 316L steel honeycombs. In addition, the effect of constituent material on the compressive response of hierarchical honeycombs has been discussed. This study facilitates the development and future potential application of multifunctional ultra-light sandwich structures.

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Kwon, Ester J., Justin H. Lo, and Sangeeta N. Bhatia. "Smart nanosystems: Bio-inspired technologies that interact with the host environment." Proceedings of the National Academy of Sciences 112, no. 47 (November 23, 2015): 14460–66. http://dx.doi.org/10.1073/pnas.1508522112.

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Nanoparticle technologies intended for human administration must be designed to interact with, and ideally leverage, a living host environment. Here, we describe smart nanosystems classified in two categories: (i) those that sense the host environment and respond and (ii) those that first prime the host environment to interact with engineered nanoparticles. Smart nanosystems have the potential to produce personalized diagnostic and therapeutic schema by using the local environment to drive material behavior and ultimately improve human health.

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Salowitz, Nathan, Zhiqiang Guo, Surajit Roy, Raphael Nardari, Yu-Hung Li, Sang-Jong Kim, Fotis Kopsaftopoulos, and Fu-Kuo Chang. "Recent advancements and vision toward stretchable bio-inspired networks for intelligent structures." Structural Health Monitoring 13, no. 6 (November 2014): 609–20. http://dx.doi.org/10.1177/0725513614554076.

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Significant progress has recently been achieved in structural health monitoring, maturing the technology through quantification, validation, and verification to promote implementation and fielding of SHM. In addition, there is ongoing work seeking to detect damage precursors and to deploy structural health monitoring systems over large areas, moving the technology beyond hot-spot monitoring to global state sensing for full structural coverage. A large number of small sensors of multiple types are necessary in order to accomplish the goals of structural health monitoring, enabling increased sensing capabilities while reducing parasitic effects on host structures. Conventional sensors are large and heavy, adding to the weight of a structure and requiring physical accommodation without adding to and potentially degrading the strength of the overall structure. Increased numbers of sensors must also be deployed to span large areas while maintaining or increasing sensing resolution and capabilities. Traditionally, these sensors are assembled, wired, and installed individually, by hand, making mass deployment prohibitively time consuming and expensive. In order to overcome these limitations, the Structures and Composites Lab at Stanford University has worked to develop bio-inspired microfabricated stretchable sensor networks. Adopting the techniques of complementary metal-oxide semiconductor and microelectromechanical system fabrication, new methods are being developed to create integrated networks of large numbers of various micro-scale sensors, processors, switches, and all wiring in a single fabrication process. Then the networks are stretched to span areas orders of magnitude larger than the original fabrication area and deployed onto host structures. The small-scale components enable interlaminar installation in laminar composites or adhesive layers of built-up structures while simultaneously minimizing parasitic effects on the host structure. Additionally, data processing and interpretation capabilities could be embedded into the network before material integration to make the material truly multifunctional and intelligent once fully deployed. This article reviews the current accomplishments and future vision for these systems in the pursuit of state sensing and intelligent materials for self-diagnostics and health monitoring.

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35

Shimoga, Ganesh, Dong-Soo Choi, and Sang-Youn Kim. "Bio-Inspired Soft Robotics: Tunable Photo-Actuation Behavior of Azo Chromophore Containing Liquid Crystalline Elastomers." Applied Sciences 11, no. 3 (January 29, 2021): 1233. http://dx.doi.org/10.3390/app11031233.

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Bio-inspiration relentlessly sparks the novel ideas to develop innovative soft robotic structures from smart materials. The conceptual soft robotic designs inspired by biomimetic routes have resulted in pioneering research contributions based on the understanding of the material selection and actuation properties. In an attempt to overcome the hazardous injuries, soft robotic systems are used subsequently to ensure safe human–robot interaction. In contrast to dielectric elastomer actuators, prolific efforts were made by understanding the photo-actuating properties of liquid crystalline elastomers (LCEs) containing azo-derivatives to construct mechanical structures and tiny portable robots for specific technological applications. The structure and material properties of these stimuli-responsive polymers can skillfully be controlled by light. In this short technical note, we highlight the potential high-tech importance and the photo-actuation behavior of some remarkable LCEs with azobenzene chromophores.

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Dubicki, Adrian, Izabela Zglobicka, and Krzysztof J. Kurzydłowski. "Investigation of Energy-Absorbing Properties of a Bio-Inspired Structure." Metals 11, no. 6 (May 28, 2021): 881. http://dx.doi.org/10.3390/met11060881.

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Numerous engineering applications require lightweight structures with excellent absorption capacity. The problem of obtaining such structures may be solved by nature and especially biological structures with such properties. The paper concerns an attempt to develop a new energy-absorbing material using a biomimetic approach. The lightweight structure investigated here is mimicking geometry of diatom shells, which are known to be optimized by nature in terms of the resistance to mechanical loading. The structures mimicking frustule of diatoms, retaining the similarity with the natural shell, were 3D printed and subjected to compression tests. As required, the bio-inspired structure deformed continuously with the increase in deformation force. Finite element analysis (FEA) was carried out to gain insight into the mechanism of damage of the samples mimicking diatoms shells. The experimental results showed a good agreement with the numerical results. The results are discussed in the context of further investigations which need to be conducted as well as possible applications in the energy absorbing structures.

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Zhang, Jianqiang, Peng Liu, Bo Yi, Zhaoyue Wang, Xin Huang, Lei Jiang, and Xi Yao. "Bio-Inspired Elastic Liquid-Infused Material for On-Demand Underwater Manipulation of Air Bubbles." ACS Nano 13, no. 9 (August 29, 2019): 10596–602. http://dx.doi.org/10.1021/acsnano.9b04771.

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Wu, Bo, Yuan Lei, Yao Xiao, Yanjun Wang, Ye Yuan, Liang Jiang, Xi Zhang, and Jingxin Lei. "A Bio‐Inspired and Biomass‐Derived Healable Photochromic Material Induced by Hierarchical Structural Design." Macromolecular Materials and Engineering 305, no. 1 (October 21, 2019): 1900539. http://dx.doi.org/10.1002/mame.201900539.

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Erdogan, Deniz Altunoz, Touradj Solouki, and Emrah Ozensoy. "A versatile bio-inspired material platform for catalytic applications: micron-sized “buckyball-shaped” TiO2structures." RSC Advances 5, no. 58 (2015): 47174–82. http://dx.doi.org/10.1039/c5ra04171f.

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Tu, Wenqiong, and Marek-Jerzy Pindera. "Targeting the finite-deformation response of wavy biological tissues with bio-inspired material architectures." Journal of the Mechanical Behavior of Biomedical Materials 28 (December 2013): 291–308. http://dx.doi.org/10.1016/j.jmbbm.2013.08.001.

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Nam, Kyung Mok, Yoon Joo Lee, Soo Ryong Kim, Woo Teck Kwon, Hyung Sun Kim, and Y. Kim. "Bio-Inspired Synthesis of Al₂O₃/Polymer Composite." Materials Science Forum 724 (June 2012): 107–10. http://dx.doi.org/10.4028/www.scientific.net/msf.724.107.

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The formation of organic-inorganic hybrid composite with ceramic platelets and polymeric compound can have the higher strength and higher elasticity than metal, which is a nanocomposite with high strength and light weight. Ceramic platelet such as Al2O3has been used to form organic-inorganic composite material using PMMA as an organic polymer. Bending strength and density of the composites prepared by infiltration and post-warm pressing were measured. FE-SEM and TG analysis were carried out to determine the microstructure of the organic-inorganic composite materials. Bending strengths and densities of the composites prepared by Al2O3ceramic plate and PMMA after post-warm pressing were ~70MPa and ranged from 2.4 to 2.6, respectively.

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Shaari, Muhammad Farid, Samad Zahurin, Mohd Elmi Abu Bakar, and M. Mariatti. "Design Consideration of Bio-Inspired Contractible Water-Jet Propulsor for Mini Autonomous Underwater Robot." Advanced Materials Research 463-464 (February 2012): 1583–88. http://dx.doi.org/10.4028/www.scientific.net/amr.463-464.1583.

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The main aim of this paper is to discuss the general design considerations for contractible water-jet propulsion system for mini underwater robot locomotion. The motivation of this paper is the problems that occurred to the motorized turbine blade propeller for a lower than centimeter scale underwater robot. Contractile water-jet propulsion mechanism is proposed to counter the turbine blade problem. In this research, active materials had been proposed as the actuator for the contractile function. The integration of active material structure and passive structure caused significant consequence on the kinematic and dynamic of the robot. This including the dimension variation, stress distribution as well as contraction force which affects the hydrodynamic efficiency of the propulsion. Several essential design considerations were highlighted and discussed.

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Gul, Jahan Zeb, Kim Young Su, and Kyung Hyun Choi. "Fully 3D Printed Multi-Material Soft Bio-Inspired Whisker Sensor for Underwater-Induced Vortex Detection." Soft Robotics 5, no. 2 (April 2018): 122–32. http://dx.doi.org/10.1089/soro.2016.0069.

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Grindy, Scott C., and Niels Holten-Andersen. "Bio-inspired metal-coordinate hydrogels with programmable viscoelastic material functions controlled by longwave UV light." Soft Matter 13, no. 22 (2017): 4057–65. http://dx.doi.org/10.1039/c7sm00617a.

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Jia, Dongling, and Jianguo Huang. "A bio-inspired nanofibrous silicon/carbon composite as an anode material for lithium-ion batteries." New Journal of Chemistry 41, no. 12 (2017): 4887–900. http://dx.doi.org/10.1039/c7nj00032d.

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Podroužek, Jan, Marco Marcon, Krešimir Ninčević, and Roman Wan-Wendner. "Bio-Inspired 3D Infill Patterns for Additive Manufacturing and Structural Applications." Materials 12, no. 3 (February 6, 2019): 499. http://dx.doi.org/10.3390/ma12030499.

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The aim of this paper is to introduce and characterize, both experimentally and numerically, three classes of non-traditional 3D infill patterns at three scales as an alternative to classical 2D infill patterns in the context of additive manufacturing and structural applications. The investigated 3D infill patterns are biologically inspired and include Gyroid, Schwarz D and Schwarz P. Their selection was based on their beneficial mechanical properties, such as double curvature. They are not only known from nature but also emerge from numerical topology optimization. A classical 2D hexagonal pattern has been used as a reference. The mechanical performance of 14 cylindrical specimens in compression is quantitatively related to stiffness, peak load and weight. Digital image correlation provides accurate full-field deformation measurements and insights into periodic features of the surface strain field. The associated variability, which is inherent to the production and testing process, has been evaluated for 3 identical Gyroid specimens. The nonlinear material model for the preliminary FEM analysis is based on tensile test specimens with 3 different slicing strategies. The 3D infill patterns are generally useful when the extrusion orientation cannot be aligned with the build orientation and the principal stress field, i.e., in case of generative design, such as the presented branching structure, or any complex shape and boundary condition.

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Chakilam, Shashikanth, Dan Ting Li, Zhang Chuan Xi, Rimvydas Gaidys, and Audrone Lupeikiene. "Morphological Study of Insect Mechanoreceptors to Develop Artificial Bio-Inspired Mechanosensors." Engineering Proceedings 2, no. 1 (November 14, 2020): 70. http://dx.doi.org/10.3390/ecsa-7-08199.

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Mechanoreceptors of the insect play a vital role for the insect to sense and monitor the environmental parameters, like flow, tactile pressure, etc. This paper presents the studies made on the morphology of the mechanoreceptor of the insect Blattella asahinai (scientific name of cockroach) that is a hair-like structure known as trichoid sensilla, by scanning electron microscope and confocal laser microscope. The scanned images show the details of sensilla components in which the hair is embedded in the sockets, which are connected with the cuticle and joint membrane, where the dendrite touches at the base of the hair passing through the cuticle layers. The images also show that the tubular bodies and microtubules are tightly compacted inside the dendrite. This paper presents the details of how the sensilla work when an external stimulus act on them. The hair deflects with the disturbance of the cuticle and joint membrane, and this deformed hair leans on the dendrite, which is attached at the base of the hair that in turn presses the tubular bodies and microtubules, which develop negative ions passing down through the dendrite to the neuron, which provides information as an electric signal to the brain of the insect so that it responds for necessary action. Based on the morphological studies, sensing mechanism, material properties of the components, and design principles will be evolved for the development of an artificial bio-inspired sensor. A solid works model of the sensilla is also presented.

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Acquesta, Annalisa, Anna Carangelo, and Tullio Monetta. "The Improvement of Durability of Biodegradable Magnesium Alloy by Using Bio-Inspired Coating." Materials Science Forum 941 (December 2018): 2477–82. http://dx.doi.org/10.4028/www.scientific.net/msf.941.2477.

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The observation of the natural world is increasingly inspiring the field of material science. A coating based on dopamine, the principle origin of the extraordinarily robust adhesion of the mussel to the solid surface, was used as an intermediate layer to decrease the degradation rate of a biodegradable device made of AZ31 magnesium alloy covered with an external organic coating. The dopamine-based film entailed a hydrophobic character to the sample, as confirmed by water contact angle test. The electrochemical analysis, made in Hank’s solution, showed that the bio-inspired film could improve the corrosion resistance of AZ31 when used together with an external organic coating.

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Scerrato, Daria, Alberto Maria Bersani, and Ivan Giorgio. "Bio-Inspired Design of a Porous Resorbable Scaffold for Bone Reconstruction: A Preliminary Study." Biomimetics 6, no. 1 (March 10, 2021): 18. http://dx.doi.org/10.3390/biomimetics6010018.

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The study and imitation of the biological and mechanical systems present in nature and living beings always have been sources of inspiration for improving existent technologies and establishing new ones. Pursuing this line of thought, we consider an artificial graft typical in the bone reconstruction surgery with the same microstructure of the bone living tissue and examine the interaction between these two phases, namely bone and the graft material. Specifically, a visco-poroelastic second gradient model is adopted for the bone-graft composite system to describe it at a macroscopic level of observation. The second gradient formulation is employed to consider possibly size effects and as a macroscopic source of interstitial fluid flow, which is usually regarded as a key factor in bone remodeling. With the help of the proposed formulation and via a simple example, we show that the model can be used as a graft design tool. As a matter of fact, an optimization of the characteristics of the implant can be carried out by numerical investigations. In this paper, we observe that the size of the graft considerably influences the interaction between bone tissue and artificial bio-resorbable material and the possibility that the bone tissue might substitute more or less partially the foreign graft for better bone healing.

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Varenberg, M., and S. Gorb. "A beetle-inspired solution for underwater adhesion." Journal of The Royal Society Interface 5, no. 20 (September 11, 2007): 383–85. http://dx.doi.org/10.1098/rsif.2007.1171.

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Glue-free reversible adhesion was achieved underwater using a beetle-inspired mushroom-shaped fibrillar microstructure. Structured surfaces reveal a 25% increase in pull-off force when immersed in water and their underwater attachment is 20 times more effective than that of flat surfaces. The van der Waals interaction that underlies the adhesion of the mushroom-shaped fibrillar microstructure is significantly enhanced by a suction effect when underwater. This results in a higher adhesive capability of the material, with potential in medicine, bio- and marine technologies and a range of applications in liquid-dominated environments.

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