The Experts below are selected from a list of 228 Experts worldwide ranked by ideXlab platform
Stanislav N. Gorb - One of the best experts on this subject based on the ideXlab platform.
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material properties of the skin of the kenyan sand boa gongylophis colubrinus squamata boidae
Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and β-layer) and soft, flexible inner layers (α-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
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Material properties of the skin of the Kenyan sand boa Gongylophis colubrinus (Squamata, Boidae)
Journal of comparative physiology. A Neuroethology sensory neural and behavioral physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and beta-layer) and soft, flexible inner layers (alpha-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
Mariechristin G Klein - One of the best experts on this subject based on the ideXlab platform.
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material properties of the skin of the kenyan sand boa gongylophis colubrinus squamata boidae
Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and β-layer) and soft, flexible inner layers (α-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
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Material properties of the skin of the Kenyan sand boa Gongylophis colubrinus (Squamata, Boidae)
Journal of comparative physiology. A Neuroethology sensory neural and behavioral physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and beta-layer) and soft, flexible inner layers (alpha-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
Julia Deuschle - One of the best experts on this subject based on the ideXlab platform.
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material properties of the skin of the kenyan sand boa gongylophis colubrinus squamata boidae
Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and β-layer) and soft, flexible inner layers (α-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
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Material properties of the skin of the Kenyan sand boa Gongylophis colubrinus (Squamata, Boidae)
Journal of comparative physiology. A Neuroethology sensory neural and behavioral physiology, 2010Co-Authors: Mariechristin G Klein, Julia Deuschle, Stanislav N. GorbAbstract:On the basis of structural data, it has been previously assumed that the integument of snakes consists of a hard, robust, inflexible outer Surface (Oberhautchen and beta-layer) and soft, flexible inner layers (alpha-layers). The aim of this study was to compare material properties of the outer and inner scale layers of the exuvium of Gongylophis colubrinus, to relate the structure of the snake integument to its mechanical properties. The nanoindentation experiments have demonstrated that the outer scale layers are harder, and have a higher effective elastic modulus than the inner scale layers. The results obtained provide strong evidence about the presence of a gradient in the material properties of the snake integument. The possible functional significance of this gradient is discussed here as a feature minimizing damage to the integument during sliding locomotion on an Abrasive Surface, such as sand.
P H Shipway - One of the best experts on this subject based on the ideXlab platform.
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Abrasive waterjet cutting of a titanium alloy the influence of Abrasive morphology and mechanical properties on workpiece grit embedment and cut quality
Journal of Materials Processing Technology, 2010Co-Authors: F Boud, C R Carpenter, Janet Folkes, P H ShipwayAbstract:Abstract Abrasive waterjet cutting of material involves the impingement of a high velocity jet of water with entrained Abrasive particles (commonly 80 mesh garnet) onto the material to be cut. Embedment of Abrasive is known to occur both on the cut-face and on the Surface perpendicular to the cut-face where (due to jet divergence) the jet has impinged but not cut through; this grit embedment is a known disadvantage of the process. In this paper, the cut quality and Abrasive embedment following waterjet cutting of a commonly used titanium alloy, Ti6Al4V with 80 mesh garnet from five different sources (differing significantly in their hardness, crushing strength and morphology) were examined and evaluated. The cut-face itself was examined to establish the presence or absence of sub-Surface embedded Abrasive; in addition, the top Surface of the plate close to the cut where particles outside the main core of the jet may have impinged was also examined. Embedment levels, Surface waviness and roughness and the mechanisms of Abrasive–Surface interactions were evaluated through a combination of scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and profilometry. It was found that despite the differences in Abrasive characteristics, no significant differences in cut quality or Abrasive embedment was seen. It was shown that the forces on individual particles during impact can be estimated to be orders of magnitude greater than their crushing load. As such, it is proposed that the majority of Abrasive particles will fracture in Abrasive waterjetting, and thus any differences in the original Abrasive particle morphologies do not dominate behaviour since it is the morphology of the fragments of these fractured particles which control embedment and cut quality.
Gye-chun Cho - One of the best experts on this subject based on the ideXlab platform.
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Performance and Reuse of Steel Shot in Abrasive Waterjet Cutting of Granite
Rock Mechanics and Rock Engineering, 2021Co-Authors: Yohan Cha, Gun-wook Joo, Gye-chun ChoAbstract:Steel shots are suitable for Abrasive waterjet rock cutting and recycling because of the high hardness and magnetic properties of steel. This study evaluated the rock-cutting performance and recycling characteristics of steel shot waterjet. The rock-cutting responses of steel shot and garnet were compared at the same waterjet conditions. The used steel shot was collected and the particle-size changes were evaluated before reuse, and its cutting performance was re-evaluated. Overall, the steel shot waterjet yielded improvements in performance in the range of 30–50% compared with the garnet waterjet. Moreover, the recycled steel shot yielded a 50% reduction in cutting performance. Rust was observed on the Surface of the used steel shot, the used steel shots were partially destroyed, and the debris on the Abrasive Surface needed to be removed by drying. The reusable steel shot left on the 80th sieve converged to 60% in each recycling run. The results of this study can be used to reduce the cost of Abrasive waterjet and industrial waste.
