Influence of surface morphology and internal structure on the mechanical properties and tribological response of Boa Red Tail and Python Regius snake skin

Toro, A.; Abdel-Aal, Hisham A.; Zuluaga, Elizabeth; Cuervo, P.; Ballesteros, Luis Miguel; Sánchez, Juan Camilo; Rudas, J. S.; Isaza, Carolina; Misiołek, Wojciech Z.

doi:10.1016/j.jmbbm.2021.104497

Cited by 11 publications

(7 citation statements)

References 14 publications

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“…The texture design was selected with base on previous work in which the influence of surface morphology and internal structure of the skin of Boidae snakes on their mechanical and tribological properties was shown [18]. Geometric descriptors have been used to characterize the deterministic surfaces inspired in the ventral scales of snakes [19][20][21] based on the resolution and geometrical aspects of both manufacturing techniques.…”

Section: Methodsmentioning

confidence: 99%

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Ballesteros,

Cano,

García

et al. 2024

Surf. Topogr.: Metrol. Prop.

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Patterned surfaces can be designed and engineered to control friction and wear resistance in various applications. In the present work, a comparative analysis of two contrasting manufacturing processes for surface texturing of polyamide, namely 3D printing by fused filament fabrication (FFF) and CNC micromachining (micro CNC) as additive and subtractive manufacturing techniques respectively was carried out. The analysis included the evaluation of the topography, roughness, mechanical properties, and tribological performance of the texturized surfaces. Both manufacturing routes were suitable for fabricating deterministic surfaces, being the micro CNC method the one that provided better repeatability and surface finishing as well as higher hardness. These factors influenced the tribological behavior of the polyamide when in contact with AISI 304 stainless steel. The relations between size, distribution and height of the texturized elements and the manufacturing technique with COF are also discussed.

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Section: Methodsmentioning

confidence: 99%

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Ballesteros,

Cano,

García

et al. 2024

Surf. Topogr.: Metrol. Prop.

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“…Several studies have focused on their role in producing frictional anisotropy, or directional dependence of friction coefficient, which facilitates sliding contact in the forward direction during slithering. 88,[258][259][260][261][262][263][264] However, snakes move in many ways and frictional anisotropy may only be beneficial for certain modes of locomotion that involve sliding contact in a single direction, especially slithering. In contrast, sidewinding requires static (or nearly static) contact with the ground, such that nanostructures promoting isotropy (the same friction coefficient in all directions) enhance sidewinding performance at the expense of lateral undulation 88 (Figure 5).…”

Section: Crotalus Cerastesmentioning

confidence: 99%

“…Beyond friction, a few studies have examined additional mechanical properties of snake skin, such as strength and stiffness, that have functional importance for at least some locomotor behaviors. [264][265][266][267][268] As with many topics in snake biology, the existing literature provides interesting glimpses into structure and function, yet the mechanical properties of snake skin remain a wide-open area for future study. Some trade-offs resulting from skin properties (like structural isotropy/anisotropy) might be inevitable, but snakes may have morphological or behavioral strategies to potentially mitigate trade-offs.…”

Section: Crotalus Cerastesmentioning

confidence: 99%

Functional diversity of snake locomotor behaviors: A review of the biological literature for bioinspiration

Tingle,

Garner,

Astley

2024

Annals of the New York Academy of Sciences

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Organismal solutions to natural challenges can spark creative engineering applications. However, most engineers are not experts in organismal biology, creating a potential barrier to maximally effective bioinspired design. In this review, we aim to reduce that barrier with respect to a group of organisms that hold particular promise for a variety of applications: snakes. Representing >10% of tetrapod vertebrates, snakes inhabit nearly every imaginable terrestrial environment, moving with ease under many conditions that would thwart other animals. To do so, they employ over a dozen different types of locomotion (perhaps well over). Lacking limbs, they have evolved axial musculoskeletal features that enable their vast functional diversity, which can vary across species. Different species also have various skin features that provide numerous functional benefits, including frictional anisotropy or isotropy (as their locomotor habits demand), waterproofing, dirt shedding, antimicrobial properties, structural colors, and wear resistance. Snakes clearly have much to offer to the fields of robotics and materials science. We aim for this review to increase knowledge of snake functional diversity by facilitating access to the relevant literature.

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“…Mayores detalles sobre la caracterización de las pieles y el diseño de las texturas se pueden encontrar en los trabajos de Ballesteros et al (25) y Toro et al (26) .…”

Section: Etapa 1: Diseño De Texturasunclassified

“…En la Figura 4b se puede observar la trayectoria de mecanizado de los pines con ondas, los cuales se programaron con una estrategia que consistió en el seguimiento de una de las aristas de la onda con el borde de la herramienta, para esto se usó una fresa cilíndrica de 0.3 mm de diámetro, una profundidad de corte de 0.005 mm hasta alcanzar una profundidad total de 0.03 mm, con un avance de 26 mm/min y 10000 RPM. Las trayectorias usadas se basaron en un estudio de mecanizado de una misma geometría con diferentes trayectorias con el software CAM que muestran que está permite reducir el consumo energético (26) , donde luego de un proceso de selección a partir de varios ensayos se evaluó una trayectoria que disminuyera el consumo de energía.…”

Section: Etapa 3: Estrategias De Mecanizado Y Códigounclassified

Consumo energético durante el texturizado superficial de aceros AISI 1080 y AISI 52100 mediante mecanizado CNC

Valdes

Zuluaga

Cuervo

et al. 2022

inycomp

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La texturización superficial ha sido empleada en diversas situaciones con el propósito de mejorar el desempeño tribológico de componentes mecánicos en contacto. En particular, la imposición de una textura determinística en superficies metálicas mediante procesos de mecanizado tiene unos costos energéticos asociados al consumo de potencia eléctrica, al desgaste de las herramientas de corte y a las pérdidas propias de la transformación de la energía eléctrica en energía mecánica, entre otras. Es, por lo tanto, pertinente cuantificar el consumo energético en el proceso de texturización con el propósito de evaluar la viabilidad de aumentar las áreas a texturizar, esto es, incrementar el volumen de material a remover de las piezas. En este trabajo se estudió el proceso de texturizado superficial con cinco patrones geométricos de un conjunto de pines fabricados en aceros AISI 1080 y AISI 52100, con énfasis en el análisis del consumo energético en el centro de mecanizado. Durante la texturización se registraron consumos de energía eléctrica entre 31.8 y 52.3 Wh por mm2 de área texturizada y a partir de los datos experimentales se establecieron correlaciones entre el consumo de energía, el material, el diseño geométrico de la textura y el área texturizada. Se encontró un aumento del 14% del consumo de energía al aumentar el área texturizada para el acero AISI 1080 en oposición al acero AISI 52100, en el cual disminuyó 20.8% el consumo energético al aumentar el área texturizada.

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Influence of surface morphology and internal structure on the mechanical properties and tribological response of Boa Red Tail and Python Regius snake skin

Cited by 11 publications

References 14 publications

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Comparison of textured nylon surfaces manufactured by CNC micromachining and 3D printing

Functional diversity of snake locomotor behaviors: A review of the biological literature for bioinspiration

Consumo energético durante el texturizado superficial de aceros AISI 1080 y AISI 52100 mediante mecanizado CNC

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