Log in

Relevant bibliographies by topics / Corrugated sheets / Journal articles

To see the other types of publications on this topic, follow the link: Corrugated sheets.

Journal articles on the topic 'Corrugated sheets'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Corrugated sheets.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Subramanian, Kumar, and Günter Wozny. "Analysis of Hydrodynamics of Fluid Flow on Corrugated Sheets of Packing." International Journal of Chemical Engineering 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/838965.

Full text

Abstract:

Modelling of the hydrodynamics behaviour of the liquid on the corrugated sheets of packing is studied using three-dimensional, volume-of-fluid (VOF) model that is incorporated in Ansys Fluent 12.0. The flow of three different liquids with different physical properties is modelled. A domain of corrugated sheets of packing resembling the real structured packing with little modifications in the elementary geometry is constructed using ICEM CFD 12.0. The quantitative comparisons of the wetting behavior from the simulations are in good agreement with experiments. Further, the study has been extended to understand the influence of the second corrugated sheet on the flow behavior. The contours from the simulations indicate the liquid hold-up in the crimp of two corrugated sheets, and these results are in good agreement with the earlier experimental studies performed using X-ray tomography in the literature. The result from the simulation shows that even for the high flow rate of around 811 mL/min for silicon-oil (DC5), only 60% of the corrugated sheet has been wetted. Hence, the efficiency of the existing packing can be further increased by increasing the wetted area in the corrugated sheet of packing.

APA, Harvard, Vancouver, ISO, and other styles

2

Biegus, A., and D. Czepizak. "Evaluation of Resistance of Corrugated Sheets under Bending by a Concentrated Loads from the Local Suspensions / Ocena Nosnosci Granicznej Blach Fałdowych Zginanych Siła Skupiona Od Lokalnych Podwieszen." Archives of Civil Engineering 56, no. 4 (December 1, 2010): 283–97. http://dx.doi.org/10.2478/v.10169-010-0016-7.

Full text

Abstract:

Abstract Th This paper presents a simple method of evaluating the load resistance and stiffness of corrugated sheets locally loaded with suspended technical fixtures. As a part of this research, parametric numerical analyses of corrugated sheets of different span, and with differently located concentrated forces, were carried out. Stress distributions in the individual folds in the elastic range and in the ultimate limit state were identified. On their basis, equivalent concentrated load factors for the individual folds in the sheet were determined. The load factors enable analyses of the load resistance and stiffness of corrugated sheets loaded with concentrated forces, which can be helpful in design practice

APA, Harvard, Vancouver, ISO, and other styles

3

Okafor, Vincent Chinedum, Peter E. Ogunoh, and Ogochukwu C. Okechukwu. "Finite Element Analysis of Fiber Cement Corrugated Roofing Sheet under Bending." European Journal of Engineering Research and Science 5, no. 8 (August 31, 2020): 955–57. http://dx.doi.org/10.24018/ejers.2020.5.8.794.

Full text

Abstract:

The study presents a numerical model for evaluation of the stresses in corrugated sheets under bending. The numerical analysis was performed from a three dimensional finite element model. From the analysis, the most intense tensional stress occurs in the trough and bottom surface of the corrugated sheet. While the most intense value of compressive stress occur in the crest and top surface of the sheet. Based on the principal stress contour diagram, the researcher also observed that the maximum uniformly distributed load carrying capacity of the fiber-cement corrugated sheet under bending, considering the linear material properties is 710N.

APA, Harvard, Vancouver, ISO, and other styles

4

Norman, A. D., K. A. Seffen, and S. D. Guest. "Multistable corrugated shells." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 464, no. 2095 (March 10, 2008): 1653–72. http://dx.doi.org/10.1098/rspa.2007.0216.

Full text

Abstract:

We have been constructing and investigating multistable corrugated shell structures. The multistability arises from the interaction between internal prestresses created during forming and nonlinear geometrical changes during deformation. Using a simplified analytical elastic model, we homogenize the properties of the shells through simultaneously considering the material on two scales: the ‘local’ scale of the isotropic material; and the ‘global’ scale of the corrugated sheet, which is then modelled as an equivalent flat sheet with anisotropic properties. This model is applied to simulate two modes of bistability observed in prototypes: first, prestressed corrugated shells that, when buckled, can coil up into a tube repeatably and reversibly; and second, corrugated sheets with a symmetry-breaking ‘twisting’ curvature. The model gives an intuitive understanding of the behaviour, and has enabled us to understand forming processes that give the behaviour we wish, including tristable shells that combine both bistable modes.

APA, Harvard, Vancouver, ISO, and other styles

5

Zurnaci, E., H. Gokkaya, M. Nalbant, and G. Sur. "Three-Point Bending Response of Corrugated Core Metallic Sandwich Panels Having Different Core Configurations – An Experimental Study." Engineering, Technology & Applied Science Research 9, no. 2 (April 10, 2019): 3981–84. http://dx.doi.org/10.48084/etasr.2671.

Full text

Abstract:

Bending response of corrugated core metallic sandwich panels was studied experimentally under three-point bending loading. Two different core configurations were used: the corrugated monolithic core and the corrugated sliced core. The trapezoidal corrugated cores were manufactured from aluminum sheets via a sheet metal bending mould. After the sandwich panel samples were prepared, they were subjected to three-point bending tests. The load and displacement responses of the sandwich panels having different core configurations were obtained from the experimental testing. The influence of the core configuration on the three-point bending response and failure modes was then investigated. The experimental results revealed that the corrugated sliced core configuration exhibited an improved bending performance compared to the corrugated monolithic core configuration.

APA, Harvard, Vancouver, ISO, and other styles

6

Wennberg, David, Per Wennhage, and Sebastian Stichel. "Orthotropic Models of Corrugated Sheets in Finite Element Analysis." ISRN Mechanical Engineering 2011 (April 20, 2011): 1–9. http://dx.doi.org/10.5402/2011/979532.

Full text

Abstract:

To reduce computational effort of finite element (FE) calculations a corrugated sheet is replaced with an orthotropic plate. Analytical expressions for the mechanical properties are studied and compared to finite Element calculations in extension, free vibration, and buckling. Good similarity is shown in the stiffened and transverse direction of the corrugated sheet; however, the orthotropic models do not give an accurate twisting behavior. The stiffened direction of the corrugated sheet best matches the analytical expressions. Keeping in mind the presented limitation, the orthotropic model presented herein can be used to drastically reduce the number of elements needed when modelling corrugated sheet with finite elements.

APA, Harvard, Vancouver, ISO, and other styles

7

Xu, G., S. Magnani, G. Mesturini, and D. J. Hannant. "Hybrid polypropylene—glass/cement corrugated sheets." Composites Part A: Applied Science and Manufacturing 27, no. 6 (January 1996): 459–66. http://dx.doi.org/10.1016/1359-835x(95)00078-g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Briassoulis, Demetres. "Equivalent orthotropic properties of corrugated sheets." Computers & Structures 23, no. 2 (January 1986): 129–38. http://dx.doi.org/10.1016/0045-7949(86)90207-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Setyanto, Djoko. "Design and FE Modeling of UPVC Corrugated Hollow Roofing Sheet." MATEC Web of Conferences 258 (2019): 01017. http://dx.doi.org/10.1051/matecconf/201925801017.

Full text

Abstract:

The corrugated roofing sheet of UPVC polymer material is the potential material to replace common roof materials that has been developed in Indonesia. This study describes the design of the roof profile and analysis of the roof structure to static load. The resulting roof profile is a hollow corrugated roofing sheet with five crests and four valleys. The effective width is 860 mm, 10 mm cavity thick, and 45 mm peak height. The finite element model of the hollow UPVC corrugated sheets roof structure shows that the roof structure is capable of withstanding the static load/ mass of 133 kg equivalent of two applicators and capable of withstanding the wind lift force equivalent to 99 km/ h.

APA, Harvard, Vancouver, ISO, and other styles

10

Biegus, Antoni. "Corrugated sheet as a bracing of flat truss chords at their out-plane buckling." Budownictwo i Architektura 13, no. 3 (September 11, 2014): 209–18. http://dx.doi.org/10.35784/bud-arch.1822.

Full text

Abstract:

Corrugated sheet properly connected with the upper chord of the flat truss can be taken into account in the assessment of the out-plane stability of the upper and bottom chord as well. The term of lateral bracing by the corrugated roof sheeting in purlinless truss chords was discussed. The calculation models for assessment of the lateral supporting of the bottom truss chords a as the flexible restraint in the roof corrugated sheets were given. The procedures of the assessment of resistance due to out-plane buckling of the bottom truss chord braced by roof sheeting were presented.

APA, Harvard, Vancouver, ISO, and other styles

11

Cruz-Estrada, Ricardo Herbé, Javier Guillén-Mallette, Carlos Vidal Cupul-Manzano, and Josué Iván Balam-Hernández. "Potential use of waste from tree pruning and recovered plastic to obtain a building material: Case study of Merida, Mexico." Waste Management & Research: The Journal for a Sustainable Circular Economy 38, no. 11 (June 5, 2020): 1222–30. http://dx.doi.org/10.1177/0734242x20928404.

Full text

Abstract:

This work presents a study on the use of wood and plastic wastes generated in abundance in Merida, Mexico, to help to reduce them in order to mitigate environmental deterioration. The use of these wastes is proposed to obtain a low-cost building material. So, the escalation process (i.e., extrusion) at the pilot level to obtain a prototype of a wood–plastic composite (WPC) corrugated sheet to evaluate the technical feasibility to make a low-cost product is reported. A corrugated sheet with recycled high-density polyethylene (R-HDPE) was produced. The R-HDPE was collected from Merida’s Separation Plant. The wood came from the trimmings of different varieties of trees and shrubs that are periodically pruned. WPC sheets with virgin HDPE were prepared to assess its effect on the materials’ mechanical performance. The wood/HDPE weight ratio was 40/60. The performance of the WPC sheets was compared with that of commercial products with similar characteristics, namely acrylic and polyester sheets reinforced with fibreglass, and black asphalt-saturated cardboard sheets. Thus, the effect of natural weathering on the maximum tensile tearing force and on the maximum flexural load of the different types of sheets was evaluated. Although the mechanical performance of the WPC sheets was lower than that of the acrylic and polyacrylic sheets, their performance was much better than that of the cheap black asphalt-saturated cardboard sheets. So, they are a good option to be used as low-cost temporary roofing.

APA, Harvard, Vancouver, ISO, and other styles

12

Piao, Y., E. G. Hauptmann, and M. Iqbal. "Forced Convective Heat Transfer in Cross-Corrugated Solar Air Heaters." Journal of Solar Energy Engineering 116, no. 4 (November 1, 1994): 212–14. http://dx.doi.org/10.1115/1.2930084.

Full text

Abstract:

Forced convective heat transfer in a cross-corrugated channel solar air heater has been studied experimentally using air as a working fluid. The channel was formed by two transversely positioned corrugated sheets and two flat thermally insulated side walls. One corrugated sheet was heated by a radiant heater, while the other was thermally insulated. The fluid velocity and temperature, and the wall temperature and the local heat flux across the heated corrugated sheet were measured for a variety of operating flow rates. Experimental results for the channel geometry have yielded the correlation Nu=0.0743(Re)0.76. This heat-transfer coefficient is about 2.8 times that of a smooth flat channel. The experiments showed that local heat transfer rate was smaller on the valley of the corrugation than that on the peak. The ratio of the local heat transfer rates on the two locations was related to the Reynolds number.

APA, Harvard, Vancouver, ISO, and other styles

13

Teixeira, Divino Eterno. "Recycled Old Corrugated Container Fibers for Wood-Fiber Cement Sheets." ISRN Forestry 2012 (March 14, 2012): 1–8. http://dx.doi.org/10.5402/2012/923413.

Full text

Abstract:

Recycled pulp of old corrugated containers (OCCs) was studied as a possible fiber source for wood-fiber cement (WFC) sheets. This industry currently largely relies on kraft pulp, an expensive fiber source. Thus, WFC sheets were made using less costly OCC fibers utilizing various types of treatments including fiber fractionation (FF) and refining to 500 and 400 Canadian Standard Freeness (CSF) to determine the effect of these treatments on the sheets strength. Unprocessed virgin kraft fiber of radiata pine (Pinus radiata) was used as control for comparison purposes. The unprocessed OCC pulp furnish yielded an initial freeness of 635 CSF; after fractionating, however, it was increased to 754 CSF. OCC pulp presented a kappa number of 47, compared to 23.7 for P. radiata. Fractionating OCC pulp was effective in raising the range of long fibers in the stock from 68 percent to 85 percent, before and after fractionating, respectively. Results from WFC sheets made in laboratory showed that there was no significant difference in board strength among boards made with unprocessed OCC fibers, fractionated and refined OCC, and P. radiata fibers. However, sheet strength decreased when refined OCC fibers were used. The results suggest that OCC fibers can produce WFC sheets with desirable characteristics compared to those of unrefined virgin kraft fiber of P. radiata.

APA, Harvard, Vancouver, ISO, and other styles

14

Li, Xin, Shiqiang Li, Zhihua Wang, Jinglei Yang, and Guiying Wu. "Response of aluminum corrugated sandwich panels under foam projectile impact – Experiment and numerical simulation." Journal of Sandwich Structures & Materials 19, no. 5 (February 6, 2016): 595–615. http://dx.doi.org/10.1177/1099636216630503.

Full text

Abstract:

The paper studied the dynamic response of square aluminum corrugated sandwich panels under projectile impact. The aluminum foam projectile was utilized to apply the impulse on the sandwich panels. In order to increase the applied impulse under controlled impact velocity ( V < 200 m/s), a cylindrical Nylon mass was adhered to the back of foam projectile. Corrugated sandwich panels with two different configurations were tested and their typical deformation modes were obtained in the experiment. Based on the experiment, corresponding numerical simulations were presented. The energy absorption and deformation mechanism of corrugated sandwich panels were studied through the simulation. The influence of impact velocity, thickness of face sheet and wall thickness of corrugated core were discussed. The results indicated that the corrugated sandwich panels with smaller core height produce larger deformation than the panels with larger core height. The face sheets of corrugated sandwich panel absorbed comparable amount of energy with the corrugated core. The velocity histories show that under the combined action of aluminum foam projectile and nylon back mass, a second peak velocity of front face sheet can be produced during the impact process, which is defined as “accelerating impact stage” in current study. The influence of “accelerating impact stage” to the response of structures is sensitive to the impact velocity.

APA, Harvard, Vancouver, ISO, and other styles

15

Odaci, Kutlay, Cenk Kılıçaslan, Alper Taşdemirci, Athanasios G. Mamalis, and Mustafa Güden. "Projectile Impact Testing Aluminum Corrugated Core Composite Sandwiches Using Aluminum Corrugated Projectiles: Experimental and Numerical Investigation." Materials Science Forum 910 (January 2018): 102–8. http://dx.doi.org/10.4028/www.scientific.net/msf.910.102.

Full text

Abstract:

E-glass/polyester composite plates and 1050 H14 aluminum trapezoidal corrugated core composite sandwich plates were projectile impact tested using 1050 H14 aluminum trapezoidal fin corrugated projectiles with and without face sheets. The projectile impact tests were simulated in LS-DYNA. The MAT_162 material model parameters of the composite were determined and then optimized by the quasi-static and high strain rate tests. Non-centered projectile impact test models were validated by the experimental and numerical back face displacements of the impacted plates. Then, the centered projectile impact test models were developed and the resultant plate displacements were compared with those of the TNT mass equal Conwep simulations. The projectiles with face sheets induced similar displacement with the Conwep blast simulation, while the projectiles without face sheets underestimated the Conwep displacements, which was attributed to more uniform pressure distribution with the use of the face sheets on the test plates.

APA, Harvard, Vancouver, ISO, and other styles

16

Cortijo, A., and M. A. H. Vozmediano. "A cosmological model for corrugated graphene sheets." European Physical Journal Special Topics 148, no. 1 (September 2007): 83–89. http://dx.doi.org/10.1140/epjst/e2007-00228-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Sokol, Zdenek, Frantisek Wald, and Petra Kallerova. "Design of corrugated sheets exposed to fire." Steel and Composite Structures 8, no. 3 (June 25, 2008): 231–42. http://dx.doi.org/10.12989/scs.2008.8.3.231.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Bayasi, Ziad, Henning Kaiser, and Miguel Gonzales. "Composite Slabs with Corrugated SIMCON Deck as Alternative for Corrugated Metal Sheets." Journal of Structural Engineering 127, no. 10 (October 2001): 1198–205. http://dx.doi.org/10.1061/(asce)0733-9445(2001)127:10(1198).

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Jármai, Károly, and Renáta Szűcs. "Investigation of welded protective covers for heat treatment." Pollack Periodica 15, no. 1 (April 2020): 15–26. http://dx.doi.org/10.1556/606.2020.15.1.2.

Full text

Abstract:

Abstract A welded steel protective cover used for the heat treatment of steel sheet coils is investigated. The protective cover is made of austenitic stainless steel and consists of three main segments, welded together, which have 1400 mm height each. The plate thicknesses at the lower, middle and upper segments are different. The investigation aimed to improve the lifetime and the number of heat cycles of the protective cover by changing the geometry, the effect of the thicknesses and the material. Damaged covers have been evaluated, made calculations of stress and deformations, and carried out a series of finite element simulations. Both horizontal and vertical corrugated sheets were simulated and compared. The non-corrugated plates were also investigated, but their performance was behind the corrugated ones. The original geometry and that of the horizontal corrugated plate are identical from the stress level point of view. The vertical position of the corrugated plate provided a better result than the horizontal one. The calculated and simulated results for the original geometry are close to the measured damage.

APA, Harvard, Vancouver, ISO, and other styles

20

KREPLIN, FREDERIC, HANS-JOACHIM PUTZ, and SAMUEL SCHABEL. "Multiple recycling of paperboard: Paperboard characteristics and maximum number of recycling cycles— Part I: Multiple recycling of corrugated base paper." November 2019 18, no. 11 (December 1, 2019): 631–38. http://dx.doi.org/10.32964/tj18.11.631.

Full text

Abstract:

Paper for recycling is an important fiber source for the production of corrugated base paper. The change in production capacity toward more and more packaging papers affects the composition of paper for recycling and influences the paper quality. This research project investigated the influence of the multiple recycling of five different corrugated base papers (kraftliner, neutral sulfite semichemical [NSSC] fluting, corrugating medium, testliner 2, and testliner 3) on suspension and strength properties under laboratory conditions. The corrugated board base papers were repulped in a low consistency pulper and processed into Rapid-Köthen laboratory sheets. The sheets were then recycled up to 15 times in the same process. In each cycle, the suspension and the paper properties were recorded. In particular, the focus was on corrugated board-specific parameters, such as short-span compression test, ring crush test, corrugating medium test, and burst. The study results indicate how multiple recycling under laboratory conditions affects fiber and paper properties.

APA, Harvard, Vancouver, ISO, and other styles

21

Sondej, Mateusz, Chandana Ratnayake, and Michał Wójcik. "Economical and Safe Method of Granular Material Storage in Silos in Offshore Port Terminals." Polish Maritime Research 25, no. 3 (September 1, 2018): 62–68. http://dx.doi.org/10.2478/pomr-2018-0097.

Full text

Abstract:

Abstract The article discusses issues related with storage of granular materials in silos made of corrugated sheets and reinforced with vertical ribs. Advantages and disadvantages of these structures are named, and typical technological solutions used by largest silo producers are presented. Moreover, basic assumptions of Eurocode 3 are discussed in the context of determining the buckling load capacity of a ribbed jacket. Alternative methods are indicated to determine the silo stability using analytical and FEM based methods. General conclusions are formulated with respect to designing of silos made of corrugated sheets.

APA, Harvard, Vancouver, ISO, and other styles

22

NIKAM, V., and R. REDDY. "Corrugated bipolar sheets as fuel distributors in PEMFC." International Journal of Hydrogen Energy 31, no. 13 (October 2006): 1863–73. http://dx.doi.org/10.1016/j.ijhydene.2006.03.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

He, Dongxu, Weidong Xue, Zheling Li, Alexander J. Marsden, Eric Prestat, Wencheng Hu, Rui Zhao, and Mark A. Bissett. "Long-range oriented graphene-like nanosheets with corrugated structure." Chemical Communications 54, no. 96 (2018): 13543–46. http://dx.doi.org/10.1039/c8cc07678b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Jung, In-Sun, Hyuk Jae Kwon, Mokwon Kim, Doyoung Kim, Jung-Hwa Kim, Hyangsook Lee, Dongjin Yun, et al. "Rapid oxygen diffusive lithium–oxygen batteries using a restacking-inhibited, free-standing graphene cathode film." Journal of Materials Chemistry A 7, no. 17 (2019): 10397–404. http://dx.doi.org/10.1039/c9ta00320g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Molina, Julio Cesar, Juliano Fiorelli, and Holmer Savastano Jr. "Analysis of the stresses in corrugated sheets under bending." Materials Research 17, no. 2 (January 24, 2014): 338–45. http://dx.doi.org/10.1590/s1516-14392014005000003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Suehrcke, H., D. Däldehög, J. A. Harris, and R. W. Lowe. "Heat transfer across corrugated sheets and honeycomb transparent insulation." Solar Energy 76, no. 1-3 (January 2004): 351–58. http://dx.doi.org/10.1016/j.solener.2003.08.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Xu, G., S. Magnani, and D. J. Hannant. "Durability of hybrid polypropylene-glass fibre cement corrugated sheets." Cement and Concrete Composites 20, no. 1 (January 1998): 79–84. http://dx.doi.org/10.1016/s0958-9465(97)00075-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Ding, Junjun, Frank T. Fisher, and Eui-Hyeok Yang. "Direct transfer of corrugated graphene sheets as stretchable electrodes." Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena 34, no. 5 (September 2016): 051205. http://dx.doi.org/10.1116/1.4961594.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Sayir, M. B., K. Hausler, and M. Partl. "Impact behaviour of corrugated sheets of fibre-reinforced cement." Composites 23, no. 6 (November 1992): 441–52. http://dx.doi.org/10.1016/0010-4361(92)90007-h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

de Mello Innocentini, Murilo Daniel, Marcelina Aparecida Vieira de Faria, Murilo Rosseto Crespi, and Victor Hugo Batista Andrade. "Air permeability assessment of corrugated fiber-cement roofing sheets." Cement and Concrete Composites 97 (March 2019): 259–67. http://dx.doi.org/10.1016/j.cemconcomp.2019.01.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Xin, Feng Xian, T. J. Lu, and Chang Chen. "Sound Transmission through Lightweight All-Metallic Sandwich Panels with Corrugated Cores." Advanced Materials Research 47-50 (June 2008): 57–60. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.57.

Full text

Abstract:

The transmission of sound through all-metallic sandwich panels with corrugated cores is investigated using the space-harmonic method. The sandwich panel is modeled as two parallel panels connected by uniformly distributed translational springs and rotational springs, with the mass of the core sheets taken as lumped mass. Based on the periodicity of the panel structure, a unit cell model is developed to provide the effective translational and rotational stiffness of the core. The model is used to investigate the influence of sound incidence angle and the inclination angle between facesheet and core sheet on the sound transmission loss (STL) of the sandwich structure. The results show that the inclination angle has a significant effect on STL, and sandwich panels with corrugated cores are more suitable for the insulation of sound having small incidence angle.

APA, Harvard, Vancouver, ISO, and other styles

32

Piekarczuk, Artur. "Modern solutions of arch-shaped construction for agricultural building halls." Budownictwo i Architektura 12, no. 2 (June 11, 2013): 259–66. http://dx.doi.org/10.35784/bud-arch.2152.

Full text

Abstract:

The paper presents evaluation methods of arch-shaped corrugated steel roof capacity used in an agricultural construction. The arch-shaped corrugated steel roof is easy to install, to use and less expensive than the traditional construction of agricultural buildings. The specific of structure poses many design problems related to the local buckling of profiled sheets. The article presents normative design methods, the most common design errors, trends research methods and numerical calculations.

APA, Harvard, Vancouver, ISO, and other styles

33

Welch, Mark D., J. W. Still, C. M. Rice, and C. J. Stanley. "A new telluride topology: the crystal structure of honeaite Au3TlTe2." Mineralogical Magazine 81, no. 3 (June 2017): 611–18. http://dx.doi.org/10.1180/minmag.2016.080.112.

Full text

Abstract:

AbstractThe crystal structure of the first thallium-bearing gold telluride, honeaite Au3TlTe2, is reported and its topological novelty discussed. Honeaite is orthorhombic, space group Pbcm and unit-cell parameters a = 8.9671(4), b = 8.8758(4), c= 7.8419(5) Å, V = 624.14(6) Å3 (Z = 4). Its structure has been refined to R1 = 0.033, wR2 = 0.053, Goof = 1.087. The structure is based upon a corrugated double-sheet comprising two sub-sheets, each composed of six-memberedrings of corner-linked TeAu3 pyramids in which the Te lone pair is stereoactive. Rows of thallium atoms lie in the grooves between sheets and provide the only inter-sheet connectivity via Tl-Au bonds. There is extensive Au-Au bonding linking the two sub-sheets of the double-sheet.The structure is distinct from those of the 1:2 (Au,Ag)-tellurides: calaverite AuTe2, sylvanite AuAgTe4 and krennerite Au3AgTe8, which are based upon sheet structures with no connecting inter-sheet atoms. It also differs fundamentally from the structuresof synthetic phases Ag3TlTe2 and Ag18Tl4Te11, both of which have an analogous stoichiometry. In contrast to the pyramidal TeAu3 group of honeaite and krennerite, Ag does not form the corresponding TeAg3 group in itstellurides.

APA, Harvard, Vancouver, ISO, and other styles

34

Kananen, Markku, Antti Järvenpää, Matias Jaskari, and Kari Mäntyjärvi. "Mechanical Properties of a “Simple Panel Structure” Manufactured of an Ultra High Strength Stainless Steel." Key Engineering Materials 786 (October 2018): 319–24. http://dx.doi.org/10.4028/www.scientific.net/kem.786.319.

Full text

Abstract:

Corrugated core panels contain a formed, corrugated core bonded between two skin sheets. These panels are typically used in applications, where a low weight is required with integrity in stiffness. This paper demonstrates the mechanical properties of a simple panel structure (SPS), constructed using strips of work-hardened, austenitic stainless steel (ASS) grade 1.4310 (type 301) with the yield strength (YS) of ~1200 MPa. The 0.5 mm thick strips were formed into a C-shape and subsequently laser welded together by lap joints to form a SPS. The thickness of the SPS was 50 mm. The bending tests for the SPS were carried out transverse and 45-degrees related to the orientation of the web sheet. The results showed that the SPS, as loaded in the transverse direction, has about the same bending stiffness prior yielding as that of the previously tested 6 mm thick, low carbon S355 plain steel sheets, but the SPS is three times lighter than 6mm thick plain steel sheet. Compared with a corrugated core panel made of an annealed ferritic stainless steel (SS-panel) with the YS ~ 250 MPa, the weight of the both panels are roughly the same, but the bending resistance of the SPS is 45% higher. Experimental tests also verified that the benefit in the stiffness is quickly reduced if the load direction differs from transverse. In the 45-degrees loading direction, the SPS and the SS-panel had almost the same bending strength. On the other hand, the SPS and the SS-panel stiffnesses are much better than that of the carbon steel (the YS ~ 300 MPa) panel (CS-panel) in the both loading directions – the SPS being twice as stiff as the CS-panel.

APA, Harvard, Vancouver, ISO, and other styles

35

Hu, Bin Bin, Xiang Chao Zeng, Lei Bian, and Ru He. "9-Allyl-9H-carbazole-3,6-dicarbaldehyde." Acta Crystallographica Section E Structure Reports Online 68, no. 8 (July 21, 2012): o2517. http://dx.doi.org/10.1107/s160053681203190x.

Full text

Abstract:

In the title molecule, C17H13NO2, the allyl group is almost perpendicular to the carbazole mean plane, with a dihedral angle of 89.0 (2)°. In the crystal, nonclassical C—H...O hydrogen bonds link the molecules into corrugated sheets parallel to thebcplane. Weak intermolecular π–π interactions are observed between the benzene rings [centroid–centroid distance = 3.874 (4) Å] from neighbouring sheets.

APA, Harvard, Vancouver, ISO, and other styles

36

Kooistra, Gregory W., Vikram Deshpande, and Haydn N. G. Wadley. "Hierarchical Corrugated Core Sandwich Panel Concepts." Journal of Applied Mechanics 74, no. 2 (September 20, 2005): 259–68. http://dx.doi.org/10.1115/1.2198243.

Full text

Abstract:

The transverse compression and shear collapse mechanisms of a second order, hierarchical corrugated truss structure have been analyzed. The two competing collapse modes of a first order corrugated truss are elastic buckling or plastic yielding of the truss members. In second order trusses, elastic buckling and yielding of the larger and smaller struts, shear buckling of the larger struts, and wrinkling of the face sheets of the larger struts have been identified as the six competing modes of failure. Analytical expressions for the compressive and shear collapse strengths in each of these modes are derived and used to construct collapse mechanism maps for second order trusses. The maps are useful for selecting the geometries of second order trusses that maximize the collapse strength for a given mass. The optimization reveals that second order trusses made from structural alloys have significantly higher compressive and shear collapse strengths than their equivalent mass first order counterparts for relative densities less than about 5%. A simple sheet metal folding and dip brazing method of fabrication has been used to manufacture a prototype second order truss with a relative density of about 2%. The experimental investigation confirmed the analytical strength predictions of the second order truss, and demonstrate that its strength is about ten times greater than that of a first order truss of the same relative density.

APA, Harvard, Vancouver, ISO, and other styles

37

László, István. "Third Neighbor Analytic Tight-Binding Solutions for Electronic Structure of Carbon Nanosystems." Materials Science Forum 659 (September 2010): 197–202. http://dx.doi.org/10.4028/www.scientific.net/msf.659.197.

Full text

Abstract:

Third neighbor analytic tight-binding formulae were obtained for graphene sheets and nanotubes. After fitting the corresponding of-diagonal matrix elements can be used in numerical electronic structure calculations of nanotubes and corrugated graphene.

APA, Harvard, Vancouver, ISO, and other styles

38

Nawawi, Effendi, Fakhili Gulo, and Jürgen Köhler. "Crystal structure of Sr2CdPt2containing linear platinum chains." Acta Crystallographica Section E Crystallographic Communications 72, no. 2 (January 9, 2016): 144–46. http://dx.doi.org/10.1107/s2056989015024937.

Full text

Abstract:

The ternary intermetallic title phase, distrontium cadmium diplatinum, was prepared from stoichiometric amounts of the elements at 1123 K for one day. The crystal structure adopts the orthorhombic Ca2GaCu2structure type in space groupImmm. Its main features are characterized by linear (Pt—Pt...Pt—Pt)nchains that are aligned along [010] and condensed through cadmium atoms forming Cd-centred Pt2Cd2/2rectangles to build up sheets parallel to (001). These sheets are connected to each otherviaalternating (001) sheets of strontium atoms along [001]. The strontium sheets consists of corrugated Sr4units that are condensed to each other through edge-sharing parallel to [100].

APA, Harvard, Vancouver, ISO, and other styles

39

Juanga-Labayen, Jeanger P., and Qiuyan Yuan. "Making Biodegradable Seedling Pots from Textile and Paper Waste—Part A: Factors Affecting Tensile Strength." International Journal of Environmental Research and Public Health 18, no. 13 (June 29, 2021): 6964. http://dx.doi.org/10.3390/ijerph18136964.

Full text

Abstract:

This study investigates the efficacy of using discarded textile (cotton and polycotton) and paper waste (newspaper and corrugated cardboard) as substrates to form sheets with optimum tensile strength. The effect of alkali treatment (sodium hydroxide (NaOH) and sodium bicarbonate (NaHCO3)), compressive loads (200 N and 500 N), and the use of binding agents (blackstrap molasses, sodium alginate, and cornstarch) were studied to optimize the tensile strength of homogeneous sheets. The alkali treatment using 5% NaOH for 5 h of soaking demonstrated the highest increase in tensile strength of 21% and 19% for cotton and newspaper, respectively. Increasing compressive load from 200 N to 500 N showed the highest increase in tensile strength of 37% and 42% for cotton and newspaper, respectively. Remarkably, among the binders, cornstarch at 20% concentration obtained an increase in tensile strength of 395%, 320%, 310%, and 185% for cotton, polycotton, corrugated cardboard, and newspaper sheets, respectively. The optimum results obtained from this study will be utilized to develop biodegradable seedling pots using discarded textile and paper waste.

APA, Harvard, Vancouver, ISO, and other styles

40

Molina, Julio Cesar, Daniel Villas Boas, Murilo Negreli, and Alexandre Jorge Duarte de Souza. "Behavior of corrugated fibre cement sheets subjected to suction loads." Ingeniare. Revista chilena de ingeniería 26, no. 1 (March 2018): 106–13. http://dx.doi.org/10.4067/s0718-33052018000100106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Payne, Amy C., Angella E. Sprauve, Aaron P. Holm, Marilyn M. Olmstead, Susan M. Kauzlarich, and Peter Klavins. "EuSnP: a novel antiferromagnet with two-dimensional, corrugated Sn sheets." Journal of Alloys and Compounds 338, no. 1-2 (May 2002): 229–34. http://dx.doi.org/10.1016/s0925-8388(02)00235-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Altınoklu, Aşkın, Barışcan Karaosmanoğlu, and Özgür Ergül. "Electromagnetic optimization of corrugated metallic sheets for maximum power focusing." Journal of Electromagnetic Waves and Applications 31, no. 8 (April 25, 2017): 837–49. http://dx.doi.org/10.1080/09205071.2017.1319299.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Pen, Ue-Li, and Yuri Levin. "Pulsar scintillations from corrugated reconnection sheets in the interstellar medium." Monthly Notices of the Royal Astronomical Society 442, no. 4 (June 30, 2014): 3338–46. http://dx.doi.org/10.1093/mnras/stu1020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Yan, Jun, Junpeng Liu, Zhuangjun Fan, Tong Wei, and Lijun Zhang. "High-performance supercapacitor electrodes based on highly corrugated graphene sheets." Carbon 50, no. 6 (May 2012): 2179–88. http://dx.doi.org/10.1016/j.carbon.2012.01.028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Németh, Csaba, and Ján Brodniansky. "Silo with a Corrugated Sheet Wall." Slovak Journal of Civil Engineering 21, no. 3 (September 1, 2013): 19–30. http://dx.doi.org/10.2478/sjce-2013-0013.

Full text

Abstract:

Abstract Silos and tanks are currently being used to create reserves of stored materials. Their importance is based on balancing the production and consumption of bulk materials to establish an adequate reserve throughout the year. The case study introduced within the framework of this paper focuses on thin-walled silos made of corrugated sheets and on an approach for designing these types of structures. The storage of bulk materials causes compression or tensile stresses in the walls of a silo structure. The effect of a frictional force in the silo walls creates an additional bending moment in a wave, which ultimately affects the resulting bending moments. Several mathematical and physical models were used in order to examine various types of loading and their effects on a structure. Subsequently, the accuracy of the computational models was verified by experimental measurements on a grain silo in Bojničky, Slovakia. A comparison of the experimental and mathematical models shows a reasonable match and confirms the load specifications, while indicating that the mathematical model was correct.

APA, Harvard, Vancouver, ISO, and other styles

46

Echigo, T., M. Kimata, A. Kyono, M. Shimizu, and T. Hatta. "Re-investigation of the crystal structure of whewellite [Ca(C2O4)·H2O] and the dehydration mechanism of caoxite [Ca(C2O4)·3H2O]." Mineralogical Magazine 69, no. 1 (February 2005): 77–88. http://dx.doi.org/10.1180/0026461056910235.

Full text

Abstract:

AbstractThe crystal structure of whewellite [Ca(C2O4)·H2O] and the dehydration mechanism of caoxite [Ca(C2O4)·3H2O] have been studied by means of differential thermal analysis, X-ray diffraction (powder and single-crystal) analysis and infrared analysis. The first and second analyses confirmed the direct transformation of caoxite into whewellite without an intermediate weddellite [Ca(C2O4)·2H2O] stage. Infrared spectra obtained from caoxite, weddellite and whewellite emphasize the similarity of the O–H-stretching band and O–C–O-stretching band in whewellite and caoxite and the unique bands of weddellite. The structure refinement at low temperature (123 K) reveals that all the hydrogen atoms of whewellite form hydrogen bonds and the two water molecules prop up the crystal structure by the hydrogen bonds that cause a strong anisotropy of the displacement parameter.Comparing the structural features of whewellite with those of weddellite and caoxite suggests that caoxite and whewellite have a sheet structure consisting of Ca2+ ions and oxalate ions although weddellite does not. It is additionally confirmed that the sheets of caoxite are corrugated by hydrogen bonds but whewellite has flat sheets. The corrugated sheets of caoxite would be flattened by dehydration so the direct transformation of caoxite into whewellite would not occur via weddellite. Essential for this transformation is the dehydration of interlayered water molecules in caoxite leading to the building of the crystal structure of whewellite on its intralayered water molecules. The difference in conformation of water molecules between those two crystal structures may explain the more common occurrence of whewellite than of caoxite in nature.

APA, Harvard, Vancouver, ISO, and other styles

47

Zhao, Zhenyu, Jianwei Ren, Shaofeng Du, Xin Wang, Zihan Wei, Qiancheng Zhang, Yilai Zhou, Zhikun Yang, and Tian Jian Lu. "Bending Response of 3D-Printed Titanium Alloy Sandwich Panels with Corrugated Channel Cores." Materials 14, no. 3 (January 24, 2021): 556. http://dx.doi.org/10.3390/ma14030556.

Full text

Abstract:

Ultralight sandwich constructions with corrugated channel cores (i.e., periodic fluid-through wavy passages) are envisioned to possess multifunctional attributes: simultaneous load-carrying and heat dissipation via active cooling. Titanium alloy (Ti-6Al-4V) corrugated-channel-cored sandwich panels (3CSPs) with thin face sheets and core webs were fabricated via the technique of selective laser melting (SLM) for enhanced shear resistance relative to other fabrication processes such as vacuum brazing. Four-point bending responses of as-fabricated 3CSP specimens, including bending resistance and initial collapse modes, were experimentally measured. The bending characteristics of the 3CSP structure were further explored using a combined approach of analytical modeling and numerical simulation based on the method of finite elements (FE). Both the analytical and numerical predictions were validated against experimental measurements. Collapse mechanism maps of the 3CSP structure were subsequently constructed using the analytical model, with four collapse modes considered (face-sheet yielding, face-sheet buckling, core yielding, and core buckling), which were used to evaluate how its structural geometry affects its collapse initiation mode.

APA, Harvard, Vancouver, ISO, and other styles

48

Pudlak, Mihal, Jan Smotlacha, and Rashid Nazmitdinov. "On Symmetry Properties of The Corrugated Graphene System." Symmetry 12, no. 4 (April 3, 2020): 533. http://dx.doi.org/10.3390/sym12040533.

Full text

Abstract:

The properties of the ballistic electron transport through a corrugated graphene system are analysed from the symmetry point of view. The corrugated system is modelled by a curved surface (an arc of a circle) connected from both sides to flat sheets. The spin–orbit couplings, induced by the curvature, give rise to equivalence between the transmission (reflection) probabilities of the transmitted (reflected) electrons with the opposite spin polarisation, incoming from opposite system sides. We find two integrals of motion that explain the chiral electron transport in the considered system.

APA, Harvard, Vancouver, ISO, and other styles

49

Zhang, Peiwen, Xin Li, Tao Jin, Zhihua Wang, and Longmao Zhao. "Dynamic response of circular metallic sandwich panels under projectile impact." Journal of Sandwich Structures & Materials 19, no. 5 (January 11, 2016): 572–94. http://dx.doi.org/10.1177/1099636215626596.

Full text

Abstract:

The dynamic response of circular sandwich panels with aluminium honeycomb and corrugated cores under projectile impact was investigated experimentally and numerically. Impulse loaded on the panel was controlled by projectile launching velocity and the deformation process of sandwich panels was recorded by a high-speed camera in the experiments. Typical deformation/failure modes of face-sheets and cores were obtained and analysed. The back face-sheet deflections and strain histories of face-sheets were measured and discussed. A parametric study was conducted by LS-DYNA 3D to analyse the effect of geometrical configuration on energy absorption mechanism and back face-sheet permanent deflection of circular sandwich panels. The results indicated that the impact resistance of the structure was sensitive to geometrical configuration. Increasing face-sheet thickness and core relative density significantly improved sandwich structure impact resistance. Increasing foil thickness improved the panel impact resistance more efficiently than decreasing wall side length. The results have important reference value to guide engineering application of the sandwich structure subjected to impact loading.

APA, Harvard, Vancouver, ISO, and other styles

50

Abdul Hamid, Hanizah, Azmi Ibrahim, and Norhisham Ibrahim. "Shear Capacity of Singly and Doubly Webbed Corrugated Web Girder." Scientific Research Journal 3, no. 1 (June 30, 2006): 53. http://dx.doi.org/10.24191/srj.v3i1.5675.

Full text

Abstract:

A conventional plate girder involves the use of transverse intermediate stiffeners, especially in a slender web to avoid catastrophic failure associated with shear buckling of the web. In this study, a profiled web was used to replace the transversely stiffened web. The process involves introducing cold-formed ribs into a flat steel sheet to form alternative stiffeners. This study therefore seeks to establish comparative performance of conventionally stiffened plate girders and profiled web girders of a specially formed rib arrangement with single and also double webs. Nine numbers of specimens were tested to failure under a three-point-bending system. Failure of all the profiled web girders, with either a single or double webs, is characterized by a shorter yield plateau and a steeper descending branch, a failure mode that is commonly referred to as ‘brittle’. The results of the tests on girders with profiled steel sheets, PSS(s) have shown that profiling is extremely effective in increasing the shear buckling load because it moves the sheet material out of the plane of the web, thereby increasing the rigidity 1.08 to 2.0 times higher than the equivalent conventional flat web plate girders. The experimental results also showed that post-buckling capacities are reduced by 30 % to 50 % of their ultimate shear capacities.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!