Gotowe bibliografie tematyczne / Θ"/θ' plates

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Gotowa bibliografia na temat „Θ"/θ' plates”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Θ"/θ' plates"

Ouinas, Djamel, та Belkacem Achour. "Buckling analysis of laminated composite plates [(θ/−θ)] containing an elliptical notch". Composites Part B: Engineering 55 (грудень 2013): 575–79. http://dx.doi.org/10.1016/j.compositesb.2013.07.011.

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Hamani, N., D. Ouinas, N. Taghezout, M. Sahnoun, and J. Viña. "Effect of Fiber Orientation on the Critical Buckling Load of Symmetric Composite Laminated Plates." Advanced Materials Research 629 (December 2012): 95–99. http://dx.doi.org/10.4028/www.scientific.net/amr.629.95.

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In this study, a buckling analysis is performed on rectangular composite plates with single and double circular notch using the finite element method. Laminated plates of carbon/bismaleimde (IM7/5250-4) are ordered symmetrically as follows [(θ/-θ)2]S. The buckling strength of symmetric laminated plates subjected to uniaxial compression is highlighted as a function of the fibers orientations. The results show that whatever the notch radius, the buckling load is almost stable. Increasing the degree of anisotropy significantly improves critical buckling load.

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Wang, Q. W., W. Q. Tao, Z. Lin, and T. T. Chow. "An Experimental Investigation of Natural Convection in a Cubic Inclined Enclosure With Multiple Isolated Plates." Journal of Heat Transfer 122, no. 1 (1999): 176–79. http://dx.doi.org/10.1115/1.521452.

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Natural convection in a cubic inclined enclosure with three isolated plates was investigated experimentally. The influences of the plates’ spacing, the inclination angles of the enclosure, and the Rayleigh number on the heat transfer of the plate group were obtained. It was found that under a fixed Rayleigh number, there is a plate spacing at which the heat transfer rate of the three plates is approximately the same for the horizontal plate group. Under the range of Rayleigh numbers considered, the heat transfer rate of the plate group is less than that of the natural convection of the plate g

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Oshima, Nagayasu, Y. Iwai, T. M. Kojima, et al. "Guiding of a Slow Positron Beam with a Glass Capillary." Materials Science Forum 607 (November 2008): 263–65. http://dx.doi.org/10.4028/www.scientific.net/msf.607.263.

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Slow positron beam was injected into a non-tapered glass capillary which was tilted angle of θ from the beam axis by a movable stage. Beam profiles of the positrons transported through the capillary were observed with a phosphor screen combined with micro channel plates as a function of θ. Some fraction of positrons was deflected with the tilting angle of the capillary.

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Hamani, N., Djamel Ouinas, N. Benderdouche, and Mohamed Sahnoun. "Buckling Analyses of the Antisymetrical Composite Laminate Plate with a Crack from Circular Notch." Advanced Materials Research 365 (October 2011): 56–61. http://dx.doi.org/10.4028/www.scientific.net/amr.365.56.

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In this study, an analysis of buckling was carried out on composite rectangular plates with and without circular notch by using the finite element method. The graphite/epoxy laminated plates were arranged antisymmetrically in the following ordered way [(θ/-θ)2]s. The buckling strength of the asymmetrical laminated plates subjected to uniaxial load is determined as a function of fiber orientation. The results show that whatever the notch radius, the buckling load is almost stable. The cumulated effect due to the presence of the longitudinal and transverse cracks as well as a circular notch redu

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Ono, Yuzo, та Nobuo Nishida. "Holographic zone plates for f · θ and collimating lenses". Applied Optics 25, № 5 (1986): 794. http://dx.doi.org/10.1364/ao.25.000794.

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Wang, X., H. Ma, X. Bao, Y. Cen, and B. Wang. "Micro‐alloying effects of lanthanum in thermo‐mechanical control process of manganese‐chromium‐molybdenum bainite rail steel." Materialwissenschaft und Werkstofftechnik 55, no. 6 (2024): 783–91. http://dx.doi.org/10.1002/mawe.202300116.

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AbstractMicro‐alloying effects of lanthanum in thermo‐mechanical control process of manganese‐chromium‐molybdenum bainite rail steel are investigated through experimental simulation and microstructural characterization. The results show that the deformation strengthening effect is fully exerted by thermo‐mechanical control process in steel containing 0.015 % lanthanum. Finally a kind of multi‐layer bainite ferrite microstructure featured by 3.5 μm blocks, 0.41 μm plates and 108 nm sub‐plates with ultrafine sub‐subunits and 55 nm θ‐M3C inside is achieved, which enhances the strength and toughne

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Fang, Xueqian, Chao Hu, and Wenhu Huang. "Dynamic Stress Concentration of a Circular Cutout Buried in Semi-Infinite Plates Subjected to Flexural Waves." Journal of Applied Mechanics 74, no. 2 (2006): 382–87. http://dx.doi.org/10.1115/1.2198545.

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In this paper, based on the theory of elastic thin plates, applying the image method and the wave function expansion method, multiple scattering of elastic waves and dynamic stress concentration in semi-infinite plates with a circular cutout are investigated, and the general solutions of this problem are obtained. As an example, the numerical results of dynamic stress concentration factors are graphically presented and discussed. Numerical results show that the analytical results of scattered waves and dynamic stress in semi-infinite plates are different from those in infinite plates when the

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Ould Hamouda, Sara, Nabil Kazi Tani, and Tawfik Tamine. "Numerical buckling analysis of cracked Bi-material thin plates." Advances in Mechanical Engineering 12, no. 7 (2020): 168781402094464. http://dx.doi.org/10.1177/1687814020944646.

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The aim of this present study is to analyze numerically the buckling behavior of cracked thin bi-material structures subjected to compression and tensile stresses and this, by considering the evolution of crack lengths and its orientations at the interface. This research work allows to quantify numerically the buckling phenomenon which can affects the thin plates for both cases, with and without interface crack especially, when the plate is subjected to tensile loading. The main important results of numerical simulations show that for the case of compression loading, the presence of interfacia

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WU, W. X., C. SHU, C. M. WANG, and Y. XIANG. "FREE VIBRATION AND BUCKLING ANALYSIS OF HIGHLY SKEWED PLATES BY LEAST SQUARES-BASED FINITE DIFFERENCE METHOD." International Journal of Structural Stability and Dynamics 10, no. 02 (2010): 225–52. http://dx.doi.org/10.1142/s021945541000349x.

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It is well-known that stress singularities occur at the obtuse corners of skew plates, especially when the skew angles are large. Owing to the stress singularities, accurate bending results, vibration frequencies and buckling loads of highly skewed plates are difficult to obtain accurately. In this paper, the mesh-free least squares-based finite difference (LSFD) method is proposed for solving the free vibration and buckling problems of highly skewed plates. As such vibration and buckling results are scarce in the open literature, the method was verified by comparing the LSFD solutions with ex

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Rozprawy doktorskie na temat "Θ"/θ' plates"

Bansal, Ujjval. "Development of a coarsening resistant microstructure in precipitation strengthened aluminium alloys with Zr, Ta and Hf." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5237.

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The work herein aims at developing precipitation-strengthened aluminium-copper (Al-Cu) alloys that can meet the current challenges of the aeronautical and automobile sectors to increase the fuel efficiency where operating temperatures are above 200 ℃. The present study shows the effect of micro-additions of Zr, Ta and Hf in designing the newer generation of high strength Al-Cu alloys by microstructural engineering using a three-step heat treatment route. Prior ageing (400-450 ℃) before solutionizing is effective to form L12 ordered coherent precipitates. However, discontinuous precipitation is

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Części książek na temat "Θ"/θ' plates"

Davidson, Lars. "Using Neural Network for Improving an Explicit Algebraic Stress Model in 2D Flow." In Proceedings of the Cambridge Unsteady Flow Symposium 2024. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-69035-8_2.

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AbstractNeural Network (NN) is used to improve an Explicit Algebraic Reynolds Stress Model (EARSM). The turbulent kinetic energy and its dissipation are predicted using the standard $$k-\omega $$ k - ω model. The NN model is trained in channel flow of $$Re_\tau = 10{,}000$$ R e τ = 10 , 000 . The NN model is stored to disk and subsequently loaded into the CFD code. The NN model is called every iteration to compute the $$\beta $$ β coefficients in the EARSM, i.e. the CFD solver and the NN model are fully coupled. The Reynolds stresses are used in the momentum equations and the production term i

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Renard, Nicolas, Sébastien Deck, and Pierre Sagaut. "Spectral Assessment of the Turbulent Convection Velocity in a Spatially Developing Flat Plate Turbulent Boundary Layer at Reynolds Number $$Re_\theta = 13\,000$$ R e θ = 13 000." In Progress in Wall Turbulence 2. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20388-1_33.

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Chemin, Jean-Yves, Benoit Desjardins, Isabelle Gallagher, and Emmanuel Grenier. "Other Layers." In Mathematical Geophysics. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780198571339.003.0019.

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Note that Ω=Ω×[0, 1] is a particular case where the boundary layers are purely horizontal or purely vertical. In the general case of an open domain Ω, the boundaries have various orientations. As long as the tangential plane ∂Ω is not vertical, the boundary layers are of Ekman type, with a size of order where ν is the normal of the tangential plane. When ν.r→0, namely when the tangential plane becomes vertical, Ekman layers become larger and larger, and degenerate for ν.r=0 in another type of boundary layer, called equatorial degeneracy of the Ekman layer. We will now detail this phenomenon in

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Hill, R. "Axial Symmetry." In The Mathematical Theory Of Plasticity. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198503675.003.0010.

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Abstract In an axially symmetric distribution of stress the non-vanishing components are σr , σ θ σ 2and Trz, referred to cylindrical coordinates (r, θ, z) with z as the axis of symmetry. The non-vanishing velocity components are u and w, respectively perpendicular and parallel to the axis; v, the component in the circumferential direction, is zero since the flow is confined to meridian planes.

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Krishnan, Kannan M. "X-Ray Diffraction." In Principles of Materials Characterization and Metrology. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198830252.003.0007.

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X-rays diffraction is fundamental to understanding the structure and crystallography of biological, geological, or technological materials. X-rays scatter predominantly by the electrons in solids, and have an elastic (coherent, Thompson) and an inelastic (incoherent, Compton) component. The atomic scattering factor is largest (= Z) for forward scattering, and decreases with increasing scattering angle and decreasing wavelength. The amplitude of the diffracted wave is the structure factor, F <sub>hkl</sub>, and its square gives the intensity. In practice, intensities are modified by temperature

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Li, Xuemin, Donglin Li, and Juncheng Guo. "Study on the Detection of Defects in Steel Plate Welds with θ Eddy Current Probe." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220456.

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The evaluation of weld defects plays an important role in ensuring the safety of equipment, but due to the unevenness of the weld itself, the use of conventional eddy current probes to detect weld defects can be affected by the lifting effect, so this paper introduces a new type of θ eddy current probe for the evaluation of steel plate weld defects. Firstly, using COMSOL simulation software, a model of the probe and the steel plate weld is constructed, and the effect of changes in excitation coil height and thickness as well as detection coil height and thickness on the detection sensitivity o

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Warrick, Arthur W. "One-Dimensional Absorption." In Soil Water Dynamics. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195126051.003.0009.

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In this chapter we address one-dimensional absorption. Absorption denotes movement of water (or other liquid) into a soil under the influence of capillarity without the effects of gravity. Although important for horizontal flow conditions, there is more interest in the results and principles relevant to the early stage of infiltration and in general relationships descriptive of the physical principles for all unsaturated systems. At the outset, two simplified systems will be considered. Included is the classical problem of linear diffusion into a semi-infinite domain. Then the Boltzmann simila

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Khushaim, Muna. "Precipitation in AA2195 by Atom Probe Tomography and Transmission Electron Microscopy." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000220.

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The transportation industries are constantly striving to achieve minimum weight to cut fuel consumption and improve overall performance. Different innovative design strategies have been placed and directed toward weight saving combined with good mechanical behavior. Among different materials, aluminum-based alloys play a key role in modern engineering and are widely used in construction components because of their lightweight and superior mechanical properties. Introduction of different nanostructure features can improve the service and the physical properties of such alloys. In this study, al

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Jordan, D. W., and P. Smith. "Stability by solutionperturbation: Mathieu’s equation." In Nonlinear Ordinary Differential Equations: Problems and Solutions. Oxford University PressOxford, 2007. http://dx.doi.org/10.1093/oso/9780199212033.003.0009.

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Abstract where m is any positive integer. A well-known result in matrix algebra states that if E has eigenvalues μi , then Em has eigenvalues μm i . The system will only have a solution of period T if there exists a unit eigenvalue. It will have a solution of period mT if μm = 1, which means that μ must be an mth root of unity. The stability regions can be seen by consulting Figure 9.3 (in NODE, showing the stability diagram for Mathieu’s equation). We must assume that α = L+a –l &gt; 0, since otherwise the string would become slack. A pendulum with a light, rigid suspension is placed upsi

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"FIG. 15 System energy change with (a) the apparent contact angle θ and (b) non-dimensional meniscus radius when axisymmetric meniscus forms under a horizontal plate. The system is stable between states A and B." In Surface and Interfacial Tension. CRC Press, 2004. http://dx.doi.org/10.1201/9780203021262-120.

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Streszczenia konferencji na temat "Θ"/θ' plates"

Yin, Jixiang, Guojun Li, and Zhenping Feng. "Effects of Corrugation Angle on Flow and Heat Transfer in Cross Corrugation Channels With Sinusoidal Waves." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68282.

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Fluid field and heat transfer in a cross-corrugated (CC) geometry with sinusoidal wavy plates have been investigated with laminar flow assumption. The 7 × 7 multiple channels configuration with six different corrugation intersection angles θ are studied. For air mass flow rates in the range of 50 ≤ Re ≤ 2000 and P/Hi = 2.2, average Nu and Fanning friction factor f are analyzed. Numerical results show that Fanning friction factors increase with corrugation intersection angle θ. But the Re of transition to turbulence decreases when θ &gt; 90°. Moreover, the absence of a sharp transition is d

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Sulaiman, Altaf H., Jim Y. C. Yang, and Shaik Jeelani. "Stress and Stability Analyses of Thick Fiber Reinforced Laminated Composite Plates Using Finite Element Method." In ASME 1993 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/cie1993-0059.

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Abstract The Finite Element work consists of Stress Concentration at the edge of circular cutout of a fiber reinforced laminated plate and Stability analysis of the same model. Location and magnitude of the maximum circumferential stress have been investigated with a finite element analysis program, ABAQUS. Variations of fiber orientation and ratio of in-plane biaxial loading have been considered to study the behavior of angle ply laminated plates. Postbucking response for angle ply laminated plate [θ/−θ]2s for both thin and thick section is studied. Different hole sizes, loading ratios, geome

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Arslan, Nurettin, Aydın Turgut, and Erol Sancaktar. "Elasto-Plastic Finite Element Stress Analysis of Thermoplastic-Matrix Symmetric Cross-Ply Plates With Square Hole." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2456.

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Abstract In this study, elasto-plastic stress analysis of symmetric cross-ply reinforced thermoplastic (PVC) matrix composite laminated plates with square hole is presented. A two-dimensional computer program is developed for elasto-plastic stress analysis of laminated plates by FEM. The thermoplastic matrix is reinforced using long stainless steel fibers. The composite plates are manufactured by using molds under the action of 2 MPa pressure, and heating up to 200 °C. The laminated plate with square hole consists of four reinforced layers bonded symmetrically in ([θ/-θ]2) cross-ply configurat

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Zhuang, Songlin, Yue Zhang, and Yanping Huang. "New method for measuring phase factor." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.fo2.

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We propose a new optical method for determining the optical phase term from the intensity distribution. The basic idea of the new method is as follows: Consider a simple Fourier optical setup or 4f system. An object f(x) = |f(x)| exp [jθ(x)] is put in the object plane, and the detector is inserted in the image plane. Obviously the intensity distribution I(x′) determined here does not include any phase information. However, if we use a spatial filter to modulate the spectrum distribution of the object function, the new intensity I(x′) will be related not only to the amplitude term |f (x)| but a

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Ominsky, Michael S., Philippe K. Zysset, and Steven A. Goldstein. "Elastic Properties of 3D Cells for Trabecular Bone: Digital vs. Structural Finite Element Models." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0201.

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Abstract Characterizing morphological and elastic properties of trabecular bone is a critical step towards understanding bone fragility. Idealized 3D cells for trabecular bone based on a tetrakaidecahedral geometry have been previously described to study morphology and its relationship to mechanical properties [1,2]. Two types of cells have been proposed: an open cell consisting of rectangular beams and a closed cell with hexagonal plates [Fig. 1]. The morphology of the cell is quantified by measures of structural density (SD) and mean intercept length (MIL). Structural density is mainly contr

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Scano, D. "Analysis of composite beams, plates, and shells using Jacobi polynomials and NDK models." In Aerospace Science and Engineering. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902677-22.

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Abstract. In this work, hierarchical Jacobi-based expansions are explored for the static analysis of multilayered beams, plates, and shells as structural theories as well as shape functions. Jacobi polynomials, denoted as P_p^((γ,θ) ), belong to the family of classical orthogonal polynomials and depend on two scalars parameters 𝛾 and 𝜃, with p being the polynomial order. Regarding the structural theories, layer wise and equivalent single-layer approaches can be used. It is demonstrated that the parameters 𝛾 and 𝜃 of the Jacobi polynomials are not influential for the calculations. These polynom

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Fernandes, Antonio Carlos, Sina Mirzaei Sefat, Fabio Moreira Coelho, and Mario Ribeiro. "Towards the Understanding of Manifold Fluttering During Pendulous Installation: Flow Induced Rotation of Flat Plates in Uniform Flow." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20950.

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The pendulous installation method of a manifold has a first phase that can be considered as a free fall in water. Of course, this is not free due to the fluid action. The consequence is that the manifold may oscillate rotationally which characterizes a fluttering behavior. However, the manifold is a complex body with non-uniform shape, several modules, porosity etc. Hence, in order to improve the understanding of the fluttering, this work presents advances in the observation of flow induced rotation on a flat plate in uniform flow. This has been started experimentally and subsequently numerica

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Rezaei, Amir Abbas, Masoud Ziabasharhagh, Tooraj Yousefi, and Mehran Ahmadi. "Experimental Study of Free Convection Heat Transfer From a Fin Attached Cylinder Confined Between Tilt and Low Conductive Plates." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24070.

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Steady state and two-dimensional natural convection heat transfer flow around a horizontal and isothermal cylinder with a longitudinal fin attached to it that is located between two tilt and very low conductive plates is studied experimentally by using a Mach-Zehnder interferometer. Effects of the plates slope angel (θ) on heat transfer from the tube is investigated for Rayleigh number ranging from 1000 to 15500. Experiments are done for a fin attached cylinder placed between two low conductive plates. Two different diameter tubes with diameters of D=10 and 20mm are utilized for broad Rayleigh

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Bianco, Nicola, Oronzio Manca, Sergio Nardini, and Vincenzo Naso. "Radiation Effects on Natural Convection in Air in a Divergent Channel With Uniformly Heated Plates." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47135.

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Nowadays trends in natural convection heat transfer are oriented toward either the seeking of new configurations to enhance the heat transfer parameters or the optimization of standard configurations. An experimental investigation on air natural convection in divergent channels with uniform heat flux at both the principal walls is presented in this paper to analyze the effect of radiative heat transfer. Results in terms of wall temperature profiles as a function of the walls diverging angle, the interwall spacing, the heat flux are given for two value of the wall emissivity. Flow visualization

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Dong, Wei, Shengbao Zhang, Zhiqiang Guo, and Xiao Yu. "Experimental Investigation on the Flow and Heat Transfer of an Air-Air Primary Surface Heat Exchanger." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75991.

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The primary surface heat exchanger (PSHE) is a kind of small size, light weight, high integration heat exchanger. The characteristics of the complex internal structure, complex flow pattern and the flow interaction have a great influence on the heat transfer of the air-air primary surface heat exchanger. Five cross-corrugated air-air primary surface heat exchangers with different core configurations are designed and fabricated applying additive manufacturing technology. The cross angle θ of upper and lower corrugated plates is 0°, 15°, 30°, 45°, respectively. An experimental investigation on t

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