Готові списки джерел за темами / Honeycomb filler

Добірка наукової літератури з теми "Honeycomb filler"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Honeycomb filler"

Wan Abdul Hamid, Wan Luqman Hakim, Yulfian Aminanda, and Mohamed Shaik Dawood. "Experimental Investigation on the Energy Absorption Capability of Foam-Filled Nomex Honeycomb Structure." Applied Mechanics and Materials 393 (September 2013): 460–66. http://dx.doi.org/10.4028/www.scientific.net/amm.393.460.

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The effect of low density filler material comprising polyurethane foam on the axial crushing resistance of Nomex honeycomb under quasi-static compression conditions was analyzed. Honeycombs with two different densities, two different heights and similar cell size, along with five different densities of polyurethane foams were used in the research. A total of 14 unfilled Nomex honeycombs, 15 polyurethane foams, and 39 foam-filled Nomex honeycombs were subjected to quasi-static compression loading. The crushing load and capability of foam-filled Nomex honeycomb structure in absorbing the energy were found to increase significantly since the cell walls of honeycomb were strengthened by the foam filler; the walls did not buckle at the very beginning of compression loading. The failure mechanism of the foam-filled honeycomb was analyzed and compared with the unfilled honeycomb.

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Mieloszyk, Magdalena, Katarzyna Majewska, and Wieslaw Ostachowicz. "THz spectroscopy for inspection and evaluation of internal structure of sandwich samples." International Journal of Structural Integrity 9, no. 6 (December 3, 2018): 793–803. http://dx.doi.org/10.1108/ijsi-11-2017-0068.

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Purpose The purpose of this paper is to discuss the application of THz spectroscopy for the inspection and evaluation of the internal structure of complex samples with honeycomb fillers. Design/methodology/approach Three complex samples with honeycomb fillers are investigated using THz spectrometer in order to determine the applicability of chosen non-destructive method for the analysis of internal structure of structural components. The first analysed sample has aluminium honeycomb filler with some cells filled with water. The aim of the analysis is to distinguish empty and full cells. The other two sandwich samples are made of different non-metallic components and for them the possibility of THz spectroscopy application is analysed. Findings The empty and full cells in metal honeycomb filler were easily distinguished due to different absorption coefficients of electromagnetic waves in THz range for air and water. It was especially visible for frequency domain. The THz spectroscopy was able to inspect the non-metallic samples internal structures and distinguish skins (with layers), honeycomb fillers and adhesive layers between them. It was also possible to detect, localise and determine the size of a local damage of honeycomb walls due to impact influence. Originality/value The present study is an original research work. There are very limited literature papers which present analyses of internal structures of sandwich elements using THz spectroscopy and investigate utility of the method for mechanical damage and contamination (water) detection and localisation.

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Vesenjak, Matej, Andreas Öchsner, and Zoran Ren. "Evaluation of Thermal and Mechanical Filler Gas Influence on Honeycomb Structures Behavior." Materials Science Forum 553 (August 2007): 190–95. http://dx.doi.org/10.4028/www.scientific.net/msf.553.190.

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In this paper the behavior of hexagonal honeycombs under dynamic in-plane loading is described. Additionally, the presence and influence of the filler gas inside the honeycomb cells is considered. Such structures are subjected to very large deformation during an impact, where the filler gas might strongly affect their behavior and the capability of deformational energy absorption, especially at very low relative densities. The purpose of this research was therefore to evaluate the influence of filler gas on the macroscopic cellular structure behavior under dynamic uniaxial loading conditions by means of computational simulations. The LS-DYNA code has been used for this purpose, where a fully coupled interaction between the honeycomb structure and the filler gas was simulated. Different relative densities, initial pore pressures and strain rates have been considered. The computational results clearly show the influence of the filler gas on the macroscopic behavior of analyzed honeycomb structures. Because of very large deformation of the cellular structure, the gas inside the cells is also enormously compressed which results in very high gas temperatures and contributes to increased crash energy absorption capability. The evaluated results are valuable for further research considering also the heat transfer in honeycomb structures and for investigations of variation of the base material mechanical properties due to increased gas temperatures under impact loading conditions.

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Vesenjak, Matej, Zoran Žunič, Zoran Ren, and Andreas Öchsner. "Computational Study of Heat Transfer in Honeycomb Structures Accounting for Gaseous Pore Filler." Defect and Diffusion Forum 273-276 (February 2008): 699–706. http://dx.doi.org/10.4028/www.scientific.net/ddf.273-276.699.

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Thermal properties of honeycomb structures with different cell shapes are investigated in this paper. The influence of cell shape, relative density and pore gases on the macroscopic honeycomb thermal properties is investigated by means of transient dynamic computational simulations. The ANSYS CFX code is used to evaluate the heat conduction trough the base material and the filler gas, as well as the convection in gas filler. The computational results clearly show a strong influence of the filler gas on heat conduction and macroscopic thermal properties of analyzed honeycomb structures, which is attributed to low relative density of the cellular structure. Additionally, the influence of considered relative densities is more prominent than the influence of cell shape. The evaluated results are valuable for further development of homogenization models of heat transfer in honeycomb structures accounting for gaseous pore fillers.

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Aktay, Levent, Cem Çakıroğlu, and Mustafa Güden. "Quasi-Static Axial Crushing Behavior of Honeycomb-Filled Thin-Walled Aluminum Tubes." Open Materials Science Journal 5, no. 1 (October 4, 2011): 184–93. http://dx.doi.org/10.2174/1874088x01105010184.

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The experimental and numerical quasi-static crushing behaviors of Nomex™ honeycomb-filled thin-walled Al tubes were investigated. The honeycomb filler was modeled using a unit cell model. The numerical model and experimental results have shown that, 6.4 mm and 4.8 mm cell size honeycomb filling had no effect on the deformation mode (diamond); however 3.2 mm cell size honeycomb filling changed the deformation mode to mixed/concertina. Honeycomb filling was also shown to increase the specific energy absorption of filled tubes over that of Al tube. The specific energy absorption of honeycomb filling was further compared with those of tube wall thickening and Al closedcell foam filling.

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Shang, Lei, Ye Wu, Yuchao Fang, and Yao Li. "High Temperature Mechanical Properties of a Vented Ti-6Al-4V Honeycomb Sandwich Panel." Materials 13, no. 13 (July 6, 2020): 3008. http://dx.doi.org/10.3390/ma13133008.

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For aerospace applications, honeycomb sandwich panels may have small perforations on the cell walls of the honeycomb core to equilibrate the internal core pressure with external gas pressure, which prevent face-sheet/core debonding due to pressure build-up at high temperature. We propose a new form of perforation on the cell walls of honeycomb sandwich panels to reduce the influence of the perforations on the cell walls on the mechanical properties. In this paper, the high temperature mechanical properties of a new vented Ti-6Al-4V honeycomb sandwich panel were investigated. A vented Ti-6AL-4V honeycomb sandwich panel with 35Ti-35Zr-15Cu-15Ni as the filler alloy was manufactured by high-temperature brazing. The element distribution of the brazed joints was examined by means of SEM (scanning electron microscopy) and EDS (energy-dispersive spectroscopy) analyses. Compared to the interaction between the face-sheets and the brazing filler, the diffusion and reaction between the honeycomb core and the brazing filler were stronger. The flatwise compression and flexural mechanical properties of the vented honeycomb sandwich panels were investigated at 20, 160, 300, and 440 °C, respectively. The flatwise compression strength, elastic modulus, and the flexural strength of the vented honeycomb sandwich panels decreased with the increase of temperature. Moreover, the flexural strength of the L-direction sandwich panels was larger than that of the W-direction sandwich panels at the same temperature. More importantly, the vented honeycomb sandwich panels exhibited good compression performance similar to the unvented honeycomb sandwich panels, and the open holes on the cell walls have no negative effect on the compression performance of the honeycomb sandwich panels in these conditions. The damage morphology observed by SEM revealed that the face-sheets and the brazing zone show ductile and brittle fracture behaviors, respectively.

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Berezin, A. V., M. A. Lyubchenko, and I. V. Gadolina. "Mechanics of orthotropic plates with honeycomb filler." IOP Conference Series: Materials Science and Engineering 934 (October 8, 2020): 012022. http://dx.doi.org/10.1088/1757-899x/934/1/012022.

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Nemish, Yu I. "Flexural rigidity of five-layer plates with a honeycomb filler." International Applied Mechanics 31, no. 12 (December 1995): 1031–39. http://dx.doi.org/10.1007/bf00847264.

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Nian, Yuze, Shui Wan, Xiayuan Li, Qiang Su, and Mo Li. "How does bio-inspired graded honeycomb filler affect energy absorption characteristics?" Thin-Walled Structures 144 (November 2019): 106269. http://dx.doi.org/10.1016/j.tws.2019.106269.

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Kolomenskii, A. B., A. N. Roshchupkin, and V. N. Rodionov. "Selecting the conditions of high‐temperature annealing titanium foil for a honeycomb filler and subsequent diffusion bonding honeycomb packets." Welding International 9, no. 7 (January 1995): 563–65. http://dx.doi.org/10.1080/09507119509548851.

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Більше джерел

Дисертації з теми "Honeycomb filler"

Storozhenko, V. A., A. V. Myagkiy, and R. P. Orel. "Filtering of interference of inhomogeneous regular structure in thermal non-destructive control of cellular structures." Thesis, Eskisehir technical university, 2021. https://openarchive.nure.ua/handle/document/18954.

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Honeycomb constructions are the most widely used materials in contemporary aviation and space technology. They are the basis for the housings of practically all products of this sector, where reliability of all parts should meet the in-creased requirements. Special attention is paid to the quality of composite materials and to the absence of defects such as the places of adhesion failure (exfoliation) between the skin and the honeycomb filler. Therefore, increase in the efficiency and reliability of thermal flaw detection, based on in-depth analysis of the processes of detecting defects and development of the principles of optimization of both the procedure of control and subsequent processing of the obtained information, is an important and relevant task.

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Santosa, Sigit P. "Crash behavior of box columns filled with aluminum honeycomb or foam." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10484.

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Jhaver, Rahul Tippur Hareesh V. "Compression response and modeling of interpenetrating phase composites and foam-filled honeycombs." Auburn, Ala., 2009. http://hdl.handle.net/10415/1839.

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Частини книг з теми "Honeycomb filler"

Kondratiev, Andrii, Olexander Potapov, Anton Tsaritsynskyi, and Tetyana Nabokina. "Optimal Design of Composite Shelled Sandwich Structures with a Honeycomb Filler." In Lecture Notes in Mechanical Engineering, 546–55. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77719-7_54.

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Vesenjak, Matej, Andreas Öchsner, and Zoran Ren. "Evaluation of Thermal and Mechanical Filler Gas Influence on Honeycomb Structures Behavior." In Materials Science Forum, 190–95. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-438-3.190.

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Vesenjak, Matej, Zoran Žunič, Zoran Ren, and Andreas Öchsner. "Computational Study of Heat Transfer in Honeycomb Structures Accounting for Gaseous Pore Filler." In Diffusion in Solids and Liquids III, 699–706. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-51-5.699.

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Akitsu, Yasuo, Hideyuki Masaki, and Osamu Kyo. "Ceramic Honeycomb Filter for Hot Gas Cleaning." In Gas Cleaning at High Temperatures, 321–45. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2172-9_21.

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Kim, Sung Jin, Hee Gon Bang, Jung Wook Moon, and Sang Yeup Park. "Effect of Zirconia on the Physical Properties of Cordierite Honeycomb Filter." In Materials Science Forum, 725–28. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-431-6.725.

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Wadkar, Shivpal S., and A. M. Badadhe. "Evaluation of Energy Absorbing Capacity of Crash Box Filled with Honeycomb Material." In Techno-Societal 2018, 965–73. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16962-6_95.

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Sarasavadiya, Hardik, Manthan J. Shah, Indranil Sarkar, and Aatmesh Jain. "Performance of Diesel Particulate Filter Using Metal Foam Combined with Ceramic Honeycomb Substrate." In Lecture Notes in Mechanical Engineering, 163–77. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2718-6_17.

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Ahmad, Nadeem, Devendra K. Dubey, and Rohit Sankrityayan. "Energy Absorption Characteristics of Balsa Wood Filled Aluminum Honeycomb Structures Subjected to Axial Quasi-static Loading." In Recent Advances in Computational Mechanics and Simulations, 217–31. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8315-5_20.

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Nakasuji, Yoshizumi, Hiroaki Sakai, and Kazuhiko Umehara. "Fatigue strength of cordierite honeycomb for diesel particulate filter." In Advanced Materials '93, 375–78. Elsevier, 1994. http://dx.doi.org/10.1016/b978-0-444-81991-8.50096-0.

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Yang, Zheng, Ning Guo, and Heng Zhang. "Study on Microstructure Characteristics of Clay Rock of Xigeda Formation in Xichang City Based on Softening Test and Image Recognition." In Advances in Transdisciplinary Engineering. IOS Press, 2021. http://dx.doi.org/10.3233/atde210151.

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Based on the Xigeda clay rock exposed in the back mountain of Nanshan Villa in Xichang City, the microstructure changes of Xigeda clay rock before and after water softening were studied by scanning electron microscope and image recognition of PCAS software. The results show that: (1) the clay rock of Xigeda group has flake and layered micro structural characteristics, and the surface of aggregates in natural state has honeycomb characteristics. After water softening, the aggregate particles decompose, the average size of particles becomes smaller, the honeycomb characteristics disappear, and the surface contours of particles become smooth and round. (2) With the increase of water saturation time, the number of aggregate particles and pores increases, the porosity decreases in advance and increases in the later stage. (3) Micro structural changes of the clay rock in Xigeda formation have two stages, in the first stage, the aggregates decompose and the produced fine granular clays fill the original pores, resulting in the decrease of porosity.In the second stage, the fine clay particles further soften, decompose and lose in the water, the porosity increases suddenly.

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Тези доповідей конференцій з теми "Honeycomb filler"

Flach, Joshua P., and Paul S. Blanton. "Evaluation of Structural Honeycomb Sensitivity to Filler Metal Reinforcement." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-94070.

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Abstract Structural honeycomb is widely used as both an impact limiter and rigid structural support in applications which require a high specific strength and highly characterized energy absorption profile. Structural honeycomb is an anisotropic material with limited strength in directions perpendicular to the cells and features mechanical properties that are largely driven by the materials of construction and structure density. As a result, the mechanical properties of honeycomb are sensitive to the specific geometry, orientation, and reinforcement of the honeycomb structure. This study evaluates the effects of these characteristics on stainless steel structural honeycomb to account for the complex loading conditions experienced during radioactive material package regulatory testing. This material is intended for use in applications where organically bonded honeycomb cannot be used.

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Sporer, Dieter R., and Ingo Reinkensmeier. "High Vacuum Brazing of Fe-Cr-Al-Y Honeycomb." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53407.

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M-Cr-Al-Y and in particular Fe-Cr-Al-Y alloys with high aluminium matrix content have a tendency to form thin, stable and tightly adherent alumina scales even at low oxygen partial pressures. This forms the basis of their superior hot gas oxidation, carburization and sulfidation resistance when used at high temperatures. However, the same tendency makes the alloys more difficult to braze because the easily formed and highly stable ceramic surface layers significantly reduce wettability and hence braze flow. Fe-Cr-Al-Y alloys have recently been suggested as promising alloys for use in gas turbine engines as abradable honeycomb gas path seals. This paper reviews the vacuum brazing of honeycombs made from highly alloyed Fe-Cr-Al-Y foils to metal backing members. Most suitable Fe-Cr-Al-Y materials, commercial braze filler alloys and braze cycles are presented. Emphasis is placed on industrial equipment rather than laboratory vacuum furnaces. Brazing under high vacuum conditions in all-metal furnaces is recommended as a brazing procedure for honeycomb made from MI 2100, which is high in aluminium content, to various commonly used carrier structure alloys.

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Gordon, Ali P., John Albury, Matthew Lopez, Evren Tasci, Zachary Poust, Steve Pitolaj, Jim Drago, and Paul Nichols. "Application of Miniaturized Experiments for Constitutive Modeling of Creep Relaxation of a Novel Textured Gasket Product." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84040.

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The material attributes that are fundamental for developing a candidate textured, ceramic-filled PTFE gasket, such as texture style/dimensions, filler material, thickness and so on, create a set of potential combinations that are not practical to experimentally characterize at the component-level one-by-one. Optimizing gasket performance, however, is essential to the operation of bolted connections associated with pressurized vessels that transfer media from one location to another. Gaskets are essential for these systems since they confer high levels of leak mitigation across a range of operating environments. A balance of both compressibility and sealability must be displayed in an optimal candidate gasket to be subjected to aggressive operating conditions. A novel textured PTFE material (termed textured) characterized using a miniaturized test platform. This new-to-market viscoelastic material features a dual-face, raised honeycomb pattern. Experiments on both flat (termed Flat) and textured are used to identify viscoelastic constitutive model constants associated with Burger theories. Considering that the test platform contains an elastic bolt that is tightened to a prescribe torque level, the gasket is subjected to creep relaxation. Test results on the small samples contribute to constitutive modeling. The influence of parameters such as filler material selection, torque level, dwell period, etc. are presented.

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Squibb, Carson, and Michael Philen. "Mechanisms of Stiffening in Polymer-Filled Honeycomb Composites." In ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/smasis2020-2301.

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Abstract Honeycomb composites are common materials in applications where a high specific stiffness is required. Previous research has found that honeycombs with polymer infills in their cells exhibit effective stiffnesses greater than the honeycomb or polymer alone. Currently, the state of analytic models for predicting the effective properties of these honeycomb polymer composites is limited, thus further research is needed to better characterize the behavior of these materials. In this work, a nonlinear finite element analysis was employed to perform parametric studies of a filled honeycomb unit cell with isotropic wall and infill materials. A pinned rigid wall model was created as an upper bound on the deformable wall model’s performance, and an empty honeycomb model was employed to better understand the mechanisms of stiffness amplification. Mechanisms by which the stiffness amplification occurs is studied through parametric studies, and the results are compared to current analytic models. It has been observed that both the volume change within the honeycomb cell under deformation, and the mismatch in Poisson’s ratios between the honeycomb and infill influence the effective properties. Stiffness amplifications of over 4,000 have been observed, with auxetic behavior achieved by tailoring of the HPC geometry. This research provides an important step toward understanding the design space and benefits of honeycomb polymer composites, and demonstrates the possibilities for variable stiffness structures when considering smart material infill materials.

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Ajdari, Amin, Hamid Nayeb-Hashemi, and Paul K. Canavan. "Effect of Defect on Elastic-Plastic and Creep Behavior of Cellular Materials." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42056.

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Cellular solids, such as foams, are widely used in engineering applications. In these applications, it is important to know their mechanical properties and the variation of these properties with the presence of defects. Several models have been proposed to obtain the mechanical properties of cellular materials. However, some of these models are based on idealized unit cell structures, and are not suitable for finding the mechanical properties of cellular materials with defects. Furthermore, the creep response changes in cellular solids when the exposed temperature is higher than 1/3 of the material’s melting temperature. The objective of this work is to understand the effect of missing walls and filled cells on mechanical and creep behavior of both the regular hexagonal and non-periodic Voronoi structures using finite element analysis. The finite element analysis showed that on average the non periodic structures have inferior mechanical properties compared to that of the regular hexagonal structures with the same relative density. The yield stress of Voronoi structures had a mean of 27% lower compared to that of the hexagonal structure with the same relative densities. Defects, introduced by removing cell walls at random locations, caused a sharp decrease in the effective mechanical properties of both Voronoi and periodic hexagonal honeycombs. However, our results indicated that elastic properties of Voronoi Structures are more sensitive to missing walls when compared to those of regular honeycomb structures. The yield strength of Voronoi and regular honeycombs exhibited the similar sensitivity to cell wall removal. For creep analysis, the results suggest that removal of struts dramatically increases the creep rate. In the case of filled cells, regular honeycomb structures showed less sensitivity to the defect compared to Voronoi structures. The overall elastic modulus of the structure increased by 11% when 5% of cells were filled in regular hexagonal honeycombs while for Voronoi structure it had more significant effect (22% increase). The results also show that filled cell did not have a significant effect on yield strength of the regular and Voronoi structures.

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Squibb, Carson, and Michael Philen. "Unit Cell Optimization of Polymer Filled Honeycomb Composites." In ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/smasis2021-68288.

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Abstract Hexagonal honeycombs and their use in composite structures has become commonplace in aerospace design and other fields. Polymer-filled honeycomb structures, where the hexagonal cells are filled with an elastomer, are of interest for their ability to increase the stiffness of the composite over that of the elastomer or honeycomb individually. Previous research by the authors has demonstrated that the effective behavior of such composites is determined by both the honeycomb geometry as well as the material properties of the infill and cell wall. Infill stiffness amplifications of over three orders of magnitude have been predicted, which could be an attractive option for improving the performance of smart materials such as shape memory polymers. Considering the benefits of such composites, it is of interest to optimize the honeycomb cell geometry to maximize the stiffness increase observed in the infill material. To meet this objective, in this work a unit cell finite element model was created for a hexagonal, thin walled honeycomb. Six design variables describing the honeycomb geometry were selected, and parametric studies of these design variables in the objective have been generated. Informed by these studies, an estimation of the Pareto front has been completed, with chosen objectives of the maximum composite in-plane modulus and modulus ratio, in one material direction. Promising designs are identified, and the range of effective composite properties if discussed. While this problem considers fixed infill properties, the methods applied could readily be extended to smart material infills. The contour plots and performance estimation employed in this research provides an important step in the design of improved smart composites for use in morphing and variable stiffness structures.

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Sappok, Alexander, Vincent Costanzo, Leslie Bromberg, Cole Waldo, and Rob Salsgiver. "Vibration-Induced Ash Removal From Diesel Particulate Filters." In ASME 2014 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icef2014-5570.

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Ceramic, honeycomb-type diesel particulate filters (DPF) are commonly used in a wide range of on- and off-road diesel-powered vehicles and equipment to reduce particulate matter (PM) emissions to mandated levels. While the majority of the trapped PM can be removed from the filter through regeneration, incombustible ash builds up in the filter over time. The ash deposits are generally found accumulated in a porous layer along the channel walls, or packed as end-plugs towards the back of the filter channels. Ash accumulation in the filter restricts exhaust flow, reduces the filter’s soot storage capacity, and negatively impacts fuel consumption. In order to mitigate these deleterious impacts on filter operation, the particulate filter is periodically removed for ash cleaning. This study examines the effects of vibrations to remove and dislodge ash deposits from diesel particulate filters, particularly the ash accumulated toward the back of the channels and packed in plugs. Fundamental measurements of ash properties, combined with experiments utilizing full-size, field-aged particulate filters were conducted to ascertain the effects of specific vibration frequencies and acceleration levels on ash plug break-up and transport out of the DPF channels. The results show considerable potential for the application of controlled vibrations in an offline cleaning system to aid in the removal of ash deposits plugging filter channels, thereby reducing the ash-related impact on vehicle fuel consumption and extending the useful life of the particulate filter.

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Jenson, S., M. Ali, K. Alam, and J. Hoffman. "Experimental Study of Energy Absorption of Fluid-Filled Honeycomb Structure." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37580.

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The work presented here is a continuation of the study performed in exploring the energy absorption characteristics of non-Newtonian fluid-filled regular hexagonal aluminum honeycomb structures. In the previous study, energy absorbing properties were investigated by using an air powered pneumatic ram, dynamic load cell, and a high speed camera. This study was conducted using a pneumatic ram which was designed to exploit only its kinetic energy during the impact. Experimental samples included an empty honeycomb sample and a filled sample as the filled samples showed the largest difference in energy absorption with respect to the empty samples in the previous study. Therefore, the filled samples were further investigated in this study by measuring the impact forces at the distal end as well as the damage on the impact end. Upon impact, the filled samples were able to reduce the damage area on impact end and were able to lower average and peak forces by 71.9% and 77.4% at the distal end as compared to the empty sample.

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Schultz, Jesse, David Griese, Prabhu Shankar, Joshua D. Summers, Jaehyung Ju, and Lonny Thompson. "Optimization of Honeycomb Cellular Meso-Structures for High Speed Impact Energy Absorption." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48000.

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This paper presents the energy absorption properties of hexagonal honeycomb structures of varying cellular geometries to high speed in-plane impact. While the impact responses in terms of energy absorption and densification strains have been extensively researched and reported, a gap is identified in the generalization of honeycombs with controlled and varying geometric parameters. This paper attempts to address this gap through a series of finite element (FE) simulations where cell angle and angled wall thickness are varied while maintaining a constant mass of the honeycomb structure. A randomly filled, non-repeating Design of Experiments (DOE) is generated to determine the effects of these geometric parameters on the output of energy absorbed, and a statistical sensitivity analysis is used to determine the parameters significant for optimization. A high degree of variation in the impact response of varying cellular geometries has shown the potential for the forward design into lightweight crushing regions in many applications, particularly the automotive and aerospace industries. It is found that while an increase in angled wall thickness enhances the energy absorption of the structure, increases in either the cell angle or ratio of cell angle to angled wall thickness have adverse effects on the output. Finally, optimization results present that a slightly auxetic cellular geometry with maximum angled wall thickness provides for maximum energy absorption, which is verified with an 8% error when compared to a final FE simulation.

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Kunkel, George M. "Shielding Characteristics of Honeycomb Filters." In 1986 IEEE International Symposium on Electromagnetic Compatibility. IEEE, 1986. http://dx.doi.org/10.1109/isemc.1986.7568259.

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Звіти організацій з теми "Honeycomb filler"

Igarashi, Tatsuki, and Mori Ishii. Improvement of an Active Regeneration DPF System by Using a SiC Honeycomb Filter. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0149.

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Noise Absorption Behavior of Aluminum Honeycomb Composite. SAE International, September 2020. http://dx.doi.org/10.4271/2020-28-0453.

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Natural fibers are one of the major ways to improve environmental pollution. In this study experimental investigation and simulation of honeycomb filled with cotton fabric, wood dust and polyurethane were carried out. This study determines the potential use of cotton fabric, wood dust as good sound absorbers. Automotive industries are looking forward to materials that have good acoustic properties, lightweight, strong and economical. This study provides a better understanding of sound-absorbing material with other mechanical properties. With simulation and experimental results, validation of works provides a wider industrial application for the interior of automotive industries including marine, aviation, railway industry and many more.

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