Journal articles: 'Laminated composite cylinder'

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Teshnizi, S. H. Sharifi, S. S. R. Koloor, G. Sharifishourabi, Amran Bin Ayob, and Yahya Mohd Yazid. "Effect of Ply Thickness on Displacements and Stresses in Laminated GFRP Cylinder Subjected to Radial Load." Advanced Materials Research 488-489 (March 2012): 367–71. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.367.

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The superior feature of composites such as high stiffness against low density have impelled engineers to use this material in automotive, aerospace and building industries. In the past few decades, composites shell has found applications in storage tanks and transmission pipelines. Designing laminated composite shells is challenging because of the complex mechanical behavior when combining laminate and shell theories. In this paper, the study is focused on the effect of lamina thickness on performance of the GFRP cylinder. For this purpose two 12-ply GFRP cylinders are considered with ply sequences of [0/90/45]s. The lamina thicknesses of the composite shell are assumed to be 0.1, 0.5, 1 and 1.5 mm, to evaluation of the mechanical behaviors of the cylinders and identifying one with the highest strength. The 250 mm diameter cylinders are subjected to a uniform radial patch load. A code is written for the solution based on the shell theory and classical mechanics of laminated composite using MATLAB software. The results are validated by comparing the present results with those found in literature. A good correlation justifies the study being extended to include the study on the effect of ply and shell thickness. The procedure is recommended for design and optimization for strength of various sizes of composite pipes

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Rattanawangcharoen, N., A. H. Shah, and S. K. Datta. "Reflection of Waves at the Free Edge of a Laminated Circular Cylinder." Journal of Applied Mechanics 61, no. 2 (1994): 323–29. http://dx.doi.org/10.1115/1.2901448.

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A wave function expansion method is employed to solve the reflection problem of time-harmonic elastic waves incident upon the free edge of a semi-infinite laminated circular cylinder. Wave functions are obtained using a propagator matrix approach for laminated isotropic cylinders and by a Rayleigh-Ritz type approximation for laminated composite cylinders. The least-square technique as well as the variational method are employed to evaluate the complex amplitudes and the energy flux associated with the reflected waves. To validate the solutions and present algorithm, results are compared with analytical solutions whenever available. Examples include free-end reflection of waves in an isotropic solid rod, a two-layered isotropic cylinder, and a four-ply [ + 15/ −15/ +15/ −15] graphite/epoxy cylinder. Numerical experimentation shows that the least-square method provides poor results for the laminated anisotropic cylinder compared to those obtained through the variational technique.

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Serhat, Gokhan. "Design of Circular Composite Cylinders for Optimal Natural Frequencies." Materials 14, no. 12 (2021): 3203. http://dx.doi.org/10.3390/ma14123203.

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This study concerns optimizing the eigenfrequencies of circular cylindrical laminates. The stiffness properties are described by lamination parameters to avoid potential solution dependency on the initial assumptions of the laminate configurations. In the lamination parameter plane, novel response contours are obtained for the first and second natural frequencies as well as their difference. The influence of cylinder length, radius, thickness, and boundary conditions on the responses is investigated. The lamination parameters yielding the maximum response values are determined, and the first two mode shapes are shown for the optimum points. The results demonstrate that the maximum fundamental frequency points of the laminated cylinders mostly lie at the inner lamination parameter domain, unlike the singly curved composite panels. In addition, the second eigenfrequency shows a nonconvex response surface containing multiple local maxima for several cases. Moreover, the frequency difference contours appear as highly irregular, which is unconventional for free vibration responses.

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Rouhi, Mohammad, Hossein Ghayoor, Suong V. Hoa, and Mehdi Hojjati. "The effect of the percentage of steered plies on the bending-induced buckling performance of a variable stiffness composite cylinder." Science and Engineering of Composite Materials 22, no. 2 (2015): 149–56. http://dx.doi.org/10.1515/secm-2014-0258.

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AbstractThe fiber steering capability of automated fiber placement machines offers the designers more room to fully exploit the directional properties of composite materials. Circumferential stiffness tailoring by fiber steering can considerably increase the bending-induced buckling performance of laminated composite cylinders. The potential structural improvement resulting from fiber steering depends on different design parameters such as the number of plies considered for fiber steering in a laminate. In this study, the buckling performance improvement of a variable stiffness (VS) composite cylinder is investigated for different percentages of plies considered for fiber steering in a multilayered composite laminate. A surrogate-based modeling along with a multi-step optimization is used in the design procedure of this study. The improvements in the buckling performance are shown and verified using finite element analysis in ABAQUS software. The mechanisms leading to buckling performance improvement of VS composites are also investigated and presented for different percentages of fiber-steered plies.

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Ahmadi, Isa. "Edge stresses analysis in laminated thick sandwich cylinder subjected to distributed hygrothermal loading." Journal of Sandwich Structures & Materials 20, no. 4 (2016): 425–61. http://dx.doi.org/10.1177/1099636216657681.

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The boundary layer hygrothermal stresses in the thick sandwich cylinder with laminated face are investigated. Uniform and through the thickness steady-state distribution for temperature and moisture content can be considered in the analysis. A displacement based layer-wise formulation is presented for analysis of thick sandwich composite cylinders subjected to hygrothermal loading conditions. Considering a general displacement field and employing a displacement based layer-wise theory, the governing equations of thick laminated sandwich cylinder are obtained. The displacement based formulation is derived for thick sandwich cylinder, which is subjected to non-uniform hygrothermal loading conditions. The faces of the sandwich cylinder are made of laminated composite with general layer stacking. The governing equations of the system include a set of coupled differential equations on the displacement components of the numerical surfaces. A semi-analytical solution is developed and the governing equations are solved for free edge boundary conditions. The accuracy of the numerical results is validated by the results of the finite element simulation and good agreements are seen between the predicted results. The free edge interlaminar stresses distributions are presented for thin and thick sandwich composite cylinders for uniform and non-uniform loading conditions. It is concluded that the presented layer-wise formulation is efficient and accurate method for analysis of thermal and hygroscopic stresses in thick and thin sandwich cylinders with general layer stacking.

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Petreli, A. S., and N. G. Tsouvalis. "A Parametric Study of the Effect of Geometric Imperfections on the Buckling Behaviour of Composite Laminated Cylinders." Advanced Composites Letters 11, no. 3 (2002): 096369350201100. http://dx.doi.org/10.1177/096369350201100302.

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This paper presents the results of a parametric study about the type and magnitude of initial imperfections on the buckling behaviour of composite laminated cylinders under external hydrostatic load. Using the FE method, cylinders with two particular types of initial imperfections are non-linearly analysed. Results show that significant improvement of the cylinder buckling strength is observed when initial imperfections have a selected shape and magnitude, which induces a final cylinder deflected shape different from the modeshape of the geometrically perfect cylinder.

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Xi, Z. C., G. R. Liu, K. Y. Lam, and H. M. Shang. "A Strip Element Method for Analyzing Wave Scattering by a Crack in an Axisymmetric Cross-Ply Laminated Composite Cylinder." Journal of Applied Mechanics 67, no. 2 (1999): 427–29. http://dx.doi.org/10.1115/1.1303800.

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A strip element method is presented for analyzing waves scattered by a crack in an axisymmetric cross-ply laminated composite cylinder. The cylinder is at the outset discretized as axisymmetric strip elements through the radial direction. The application of the Hamilton variational principle develops a set of governing ordinary differential equations. The particular solutions to the resulting equations are found using a modal analysis approach in conjunction with the Fourier transform technique. The complementary solutions are formulated by the superposition of eigenvectors, the unknown coefficients of which are determined from axial stress boundary conditions at the tips of the crack. The summation of the particular and complementary solutions gives the general solutions. Numerical examples are given for cross-ply laminated composite cylinders with radial cracks. The results show that the present method is effective and efficient. [S0021-8936(00)00202-6]

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Teshnizi, S. H. Sharifi, S. S. R. Koloor, G. Sharifishourabi, Amran Bin Ayob, and Yahya Mohd Yazid. "Mechanical Behavior of GFRP Laminated Composite Pipe Subjected to Uniform Radial Patch Load." Advanced Materials Research 488-489 (March 2012): 542–46. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.542.

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Cylindrical vessels are widely used for storage and transportation of fluids. Using composites shells can improve the corrosion resistance of the product and reduce weight therefore investigation of the mechanical behavior is important. For this purpose cylinders with 6, 12 and18-ply of GFRP , with symmetric ply sequence of [90/0/90]s, [90/0/90/0/90/0]s and, [90/0/90/0/90/0/90 /0/90]s with layer thickness 1.3 mm and mean radius 250 mm, are considered under uniform radial patch load. The analysis was based on the shell theory and classical mechanics of laminated composites. A code was written using MATLAB software to compute stress and deflection of the cylinder shell. In numerical simulation, each unidirectional composite ply is treated as an equivalent elastic and orthotropic panel. Analysis is focused on the area of cylinder where the patch load is applied. The results show that the analytical prediction compares well with numerical responses of previous literature. The procedure can be used to predict maximum stress and displacement in a multi-layer shell for various types of similar loading.

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SHAH, NAZIM SULTAN, and HARSHAL AHER. "Free Vibration Characteristics Investigation in Composite Laminated Open Cylindrical Shells." Mazedan Transactions on Engineering Systems Design 5, no. 2 (2024): 22–24. https://doi.org/10.5281/zenodo.14452000.

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The shell vibration problem is of continuing interest due to their rampant use as structural members. Often these shells are made of laminated composites. These laminated shells have a very wide range of applications, particularly in aerospace, military hardware, marine ships, and civil constructions, as well as an integral part of machines where they are subjected to dynamic loading hence their vibratory analysis, is important for efficient, reliable and failure-proof design. Composite laminated open shells in these applications are employed with various boundary conditions. Understanding the vibration characteristics of these shell components is particularly important for engineers to design suitable structures with low vibration and noise radiation characteristics. The present work investigates the free vibration characteristics of composite laminated open cylindrical shells for general boundary conditions using a unified Chebyshev-Ritz formulation. The Rayleigh-Ritz method based on the energy functional of the open cylindrical shell has been used to obtain solutions. The method has been validated with standard reference and a convergence test of this method has also been done. A parametric study has been done including the effect of aspect ratio, lamination scheme, width-to-radius ratio, thickness-to-radius ratio, and boundary conditions. The analytical results have also been compared with the numerical results obtained using finite element solver ANSYS.

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Хасанова, Г. А. "СОЗДАНИЕ МНОГОСЛОЙНОГО КОМПОЗИТА С ИСПОЛЬЗОВАНИЕМ УГЛЕРОДНЫХ ВОЛОКОН НА ОСНОВЕ МОДЕЛИ ВЫПУЧИВАНИЯ КОМПОЗИТНОГО ЦИЛИНДРА". ИЗВЕСТИЯ ВУЗОВ КЫРГЫЗСТАНА, № 3 (29 червня 2024): 3–8. https://doi.org/10.26104/ivk.2024.27.84.001.

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Высококачественные композиционные материалы используются в различных областях науки и техники. Поиск легких, прочных, теплопроводных и недорогих композитных материалов – это потребность времени. Композитные материалы используются для снижения веса кораблей, транспортных средств, строительных конструкций и самолетов. Композиционный материал из эпоксидной смолы из углеродного волокна обладает превосходной химической стойкостью и термостойкостью. Еще одной характеристикой армированных волокном материалов является свойство анизотропии. В последние годы большое внимание уделяется процессам расслоения, деформации, вызванными остаточными напряжениями в многослойных композитах, поскольку эти параметры имеют важное значение для качества материала. С помощью COMSOL Multiphysics мы создали ламинированный композитный цилиндр из углеродных волокон с учетом изменения углы вращения симметричного ламината, симметричного поперечно-слоистого ламината и антисимметричного углового ламината. Жогорку сапаттагы композиттик материалдар илим менен техниканын ар кандай тармактарында колдонулат. Жеңил, бекем, жылуулук өткөрүмдүү, арзан баадагы композиттик материалдарды табуу замандын талабы. Композиттик материалдар кемелерде, транспортто, курулуш конструкцияларында, учактарда салмакты азайтуу максатында колдонулат. Көмүртек буласынан эпоксиддик чайырдан жасалган копозиттик материал мыкты химиялык туруктуулукка, каршылыкка ээ жана ысыкка чыдамдуу. Була менен бекемделген материалдардын дагы бир өзгөчөлүгү анизотропия касиетине ээ. Акыркы жылдарда көп катмарлуу композиттерде калдык чыңалуудан келип чыккан деламинация жана деформация процесстерине көп көңүл бурулууда, анткени бул параметрлер материалдын сапаты үчүн маанилүү. COMSOL Multiphysics программасын колдонуп, биз симметриялык ламинаттын, симметриялык кайчылаш ламинаттын жана антисимметриялык бурч ламинаттын айлануу бурчтарын өзгөртүү аркылуу ламинатталган көмүртек буласынан жасалган композиттик цилиндрди түздүк. High-quality composite materials are used in various fields of science and technology. Finding lightweight, strong, heat-conducting, low-cost composite materials is the need of the hour. Composite materials are used to reduce weight in ships, vehicles, building structures, and aircraft. Carbon fiber epoxy resin composite material has excellent chemical resistance, resistance and heat resistance. Another characteristic of fiber-reinforced materials is the property of anisotropy. In recent years, much attention has been paid to the processes of delamination and deformation caused by residual stresses in multilayer composites, since these parameters are important for the quality of the material. Using COMSOL Multiphysics, we created a laminated carbon fiber composite cylinder by varying the rotation angles of a symmetric laminate, a symmetric cross-laminated laminate, and an antisymmetric corner laminate.

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Kovalovs, Andrejs, Andris Chate, and Vladimir Kulakov. "The modal analysis of laminated composite cylinders under axial tension loading in ANSYS." MATEC Web of Conferences 396 (2024): 05007. http://dx.doi.org/10.1051/matecconf/202439605007.

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Natural frequencies and vibration modes of laminated composite cylinders were calculated under axial tension loading by the finite element method using ANSYS Mechanical software package. Two types of axial tensile load were modelled: a suspended weight and a static axial load in the zone of weight attachment into the cylinder. The features of the modal analysis of a prestressed system depending on the type of applied tensile load were analyzed. The numerical results obtained were compared and the possible reasons for their discrepancy were explained.

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Muayad, M. Idan* Nabil H. Hadi. "RESPONSE ANALYSIS OF LAMINATED COMPOSITES PRESSURE VESSEL SUBJECTED TO LOW VELOCITY IMPACT." Global Journal of Engineering Science and Research Management 4, no. 9 (2017): 111–20. https://doi.org/10.5281/zenodo.897752.

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Composite materials most of the time used in the industry of marine and aerospace, the study care in understanding the response caused by the shock load in low velocity impact. The composite materials define as mixing two different materials to get good properties and light weight. The study involved impact load testing and a numerical analysis with Abaqus/Standard was used to compare with the experimental results, of many various variables of modeling, including(3)weight of impactor for open and closed end cylinders, three different thicknesses of layers of laminated composite cylinder. Various models are tested and results showed that the deflection and force with time are affected for these different models. Experimental and theoretical results showed good agreement for impact response magnitudes as well as contact forces with max. Percentage error of (7.5%).

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Braga, Arthur M. B., Paul E. Barbone, and George Herrmann. "Wave Propagation in Fluid-Loaded Laminated Cylindrical Shells." Applied Mechanics Reviews 43, no. 5S (1990): S359—S365. http://dx.doi.org/10.1115/1.3120841.

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Harmonic waves propagating in a fluid-loaded, composite circular cylinder are investigated. The solid in this case is composed of perfectly bonded, isotropic, linearly elastic, cylindrical layers stacked radially to form a laminated cylinder. The surface impedance of the laminated shell is calculated using a recursive invariant-imbedding algorithm. This algorithm is numerically stable for a wide range of frequencies and circumferential mode numbers. Particular attention is given to the study of subsonic interface waves which propagate unattenuated along a fluid-solid interface. Results are presented which show the effects of layering and curvature on the dispersion spectrum of the subsonic interface waves.

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Firouzabadi, Farzin, Amran Bin Ayob, M. Moradpour, R. Heidarpour, and Nayeleh Deirram. "Dynamic Response of Laminated Composite Cylindrical Shell Subjected to Pure Impact." Applied Mechanics and Materials 229-231 (November 2012): 2577–81. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2577.

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In contrast with all advantages of composite materials, susceptibility of these materials to impact damage became a major concern recently. The aim of this research is to investigate the dynamic response of laminated composite cylindrical shell subjected to pure impact numerically. For this purpose, the impact of a steel ball on composite cylinder is modeled in Abaqus software as a point load and the amount of radial deflection and contact force of the contact point on cylinder surface is recorded for whole period of contact motion. To validate the obtained results they were compared with the exactly the same model in published data. According to obtained results, both of radial deflection and contact force have a parabolic variation during the impact motion. The maximum radial deflection occurs when the striker has its maximum penetration and bouncing back motion is just about to start.

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Hmoud, Amina, Hadi Obaid Mery, and Osamah Malik Mohammed. "Numerical analysis of heat transfer in annulus composite material at different operation conditions." Wasit Journal of Engineering Sciences 12, no. 4 (2024): 122–32. https://doi.org/10.31185/ejuow.vol12.iss4.598.

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In this article natural air convection in an inclined annular cage in three dimensions is investigated numerically. This study will examine the impact of the radius ratio of an annulus on heat transfer employing two distinct methods to optimizing effective thermal conductivity: minimizing and maximizing. The annulus is built of graphite/epoxy laminated composite material. There are 12 fins attached to the inner cylinder of the two concentric cylinders that make up the annulus enclosure, which is filled with porous medium. Regarding the annulus's inclination angle “δ”, two scenarios—a horizontal annulus and a vertical annulus—are considered. Constant walls temperature boundary condition and steady state conditions apply to the system with 0.2, 0.3, 0.4 and 0.5 different radius ratio, inclination angle (0o and 90o), and modified Rayleigh number “Ra*” ranged from 10 to 500, The Nusselt number decreased for all parameters as the radius ratio Rr decreased, indicating a wider cold outer cylinder gap. For large values of modified Rayleigh number, the average Nu number ”Nuavg.” decreases with an increase in δ, and increases with a rise in the modified Rayleigh number; for low values of Ra*, δ has no effect. For horizontal, and vertical states “δ=0 o, and 90o respectively, at higher and lower thermal conductivity, the divergence of the average Nusselt is 5.1% and 10%, respectively. In horizontal cylinder adding fins on the inner cylinder is more substantial for due to its impeding effect, and NuL increases with cylinder length. For the outer cold cylinder, a link between Ra* and δ and the average Nusselt number has been established.

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Liu, Xueshu, Hanyang Xin, and Huifeng Jiao. "Analysis of composite cylinders under external pressure load." Journal of Physics: Conference Series 2888, no. 1 (2024): 012004. http://dx.doi.org/10.1088/1742-6596/2888/1/012004.

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Abstract Composites have been increasingly used when weight is an essential factor to be considered. Composite structures have been proposed in deep sea field as competitive replacement of traditional steel structures. So, it is very important to evaluate the mechanical performance of composite structures under high external pressure in order to avoid potential failure or over conservative designs. In this study, solution is proposed for multi-layered composite cylinder based on the classical laminated-plate theory and detailed stress-strain responses are investigated by using the proposed analytical method. It was found that the cylinder is more sensitive to external pressure than internal pressure and the difference between axial stresses is up to 8.2%. In addition, the stacking sequence has great influence on stress distribution through the thickness direction and the sequence of [45/0] may change the stress from tensile to compressive for two adjacent layers. Finally, the difference between hoop stresses at the internal and external surfaces is not affected by the ratio of radius to thickness.

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Yee, K. C., and T. J. Moon. "Plane Thermal Stress Analysis of an Orthotropic Cylinder Subjected to an Arbitrary, Transient, Asymmetric Temperature Distribution." Journal of Applied Mechanics 69, no. 5 (2002): 632–40. http://dx.doi.org/10.1115/1.1491268.

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A closed-form, analytical solution is presented for the transient, plane thermal stress analysis of a linearly elastic, homogeneously orthotropic hollow cylinder subjected to an arbitrary temperature distribution. The thermoelastic solution, obtained by a stress function approach, can be used as the basis for the corresponding thermoviscoelastic solution for thermorheologically simple viscoelastic materials by invoking the viscoelastic Correspondence Principle. This solution can also be directly extended to the class of weakly inhomogeneously orthotropic cylinders using perturbation methods. The transient asymmetric temperature field is characterized by Fourier-Bessel eigenfunction expansions. The analytically derived stress function satisfies a linear, fourth-order inhomogeneous partial differential equation and the Cesaro integral conditions, which assure the existence of a single-valued displacement field. The corresponding thermal stresses are then computed by the stress-stress function relations. A key feature of the analytical solution is that the hoop, radial, and shear stresses, due to the transient arbitrary temperature distribution, are expressed explicitly in terms of the scalar temperature field. A polymer composite example is presented to validate the current method and to qualitatively illustrate the distribution of thermal stresses due to an asymmetric temperature distribution. Numerical results are presented for the thermally driven hoop, radial and (interlaminar) shear stresses in a hollow, hoop-wound glass/epoxy cylinder. This analysis demonstrates that potentially debilitating interlaminar shear stresses can develop in laminated composites when subjected to an even modest transient asymmetric temperature distribution. Their magnitudes depend on the severity of the spatial and temporal thermal gradients in the circumferential direction. While still relatively low compared to the hoop stress, the shear stress may cause thermal failure due to the typically low interlaminar shear strengths of laminated composite materials.

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Manconi, Elisabetta, Brian R. Mace, and Rinaldo Garziera. "Wave Propagation in Laminated Cylinders with Internal Fluid and Residual Stress." Applied Sciences 13, no. 9 (2023): 5227. http://dx.doi.org/10.3390/app13095227.

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Numerical computation of wave propagation in laminated cylinders with internal fluid and residual stress is obtained using a Wave Finite Element formulation for 2D waveguides. Only a very small segment of the system is modelled, resulting in a very low-order finite element (FE) model to which the theory of wave propagation in 2D periodic structures is applied. The method uses standard FE formulations and exploits the capability of commercial FE software to model both fluid and structure and their interaction, resulting in a very large reduction in computational time. The presented approach is general, and can be applied without the need to make assumptions related to shell theory or low-frequency analysis. In particular, the laminated structure is discretised using 3D solid elements, thus representing the through-thickness dynamics with high accuracy. Residual radial and hoop stresses are included in the model by adding the FE pre-stress stiffness matrix to the original stiffness matrix of the system. The method provides simultaneously a very substantial reduction of computational cost, accurate solutions up to very high frequency and prediction of the dispersion curves for selected circumferential orders without the need for any further analysis. Here, the formulation of the method is introduced and its application to laminated cylinders filled with an acoustic fluid is presented. A composite, reinforced rubber cylinder, pre-stressed by a circumferential tension, is also shown as an example of a laminated pipe for high-pressure applications.

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Ahmed, Bassam Ali. "Optimization of fatigue life in laminated composite plates." Curved and Layered Structures 9, no. 1 (2022): 425–41. http://dx.doi.org/10.1515/cls-2022-0183.

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Abstract With the development of fiber technology on which the composite materials depend mainly was necessary to improve the rigidity, durability, and heat transfer in the areas of heating and cooling technologies. The effect of the fatigue phenomenon on composite materials using carbon fibers is studied. In this research paper, work was performed to study the improvement in the bearing capacity of the stress test sample with the addition of carbon fibers at different angles. The stresses affecting the test specimen are cylindrical with a length of 10 cm. The results proved that the best arrangement of the carbon fibers in the form of triple layers starting from the center of the cylinder circle to the outside was the share of the arrangement layer 45, 0, 0, where the lowest value was the number of fatigue life cycles, 2349 cycles in the bending test, as the amount of stress that this case reached was 6.1×108 Pa compared to the rest of the studied cases.

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Gnoli, Daniel, Sajjad Babamohammadi, and Nicholas Fantuzzi. "Homogenization and Equivalent Beam Model for Fiber-Reinforced Tubular Profiles." Materials 13, no. 9 (2020): 2069. http://dx.doi.org/10.3390/ma13092069.

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The current work presents a study on hollow cylinder composite beams, since hollow cylinder cross-sections are one of the principal geometry in many engineering fields. In particular, the present study considers the use of these profiles for scaffold design in offshore engineering. Composite beams cannot be treated as isotropic ones due to couplings mainly present among traction, torsion, bending and shear coefficients. This research aims to present a simple approach to study composite beams as they behave like isotropic ones by removing most complexities related to composite material design (e.g., avoid the use of 2D and 3D finite element modeling). The work aims to obtain the stiffness matrix of the equivalent beam through an analytical approach which is valid for most of the laminated composite configurations present in engineering applications. The 3D Euler–Bernoulli beam theory is considered for obtaining the correspondent isotropic elastic coefficients. The outcomes show that negligible errors occur for some equivalent composite configurations by allowing designers to continue using commercial finite element codes that implement the classical isotropic beam model.

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Tzeng, Jerome T., and Kou-Ta Hsieh. "Electromagnetic analysis of composite structures subjected to transient magnetic fields." Journal of Composite Materials 54, no. 6 (2019): 745–52. http://dx.doi.org/10.1177/0021998319868005.

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When carbon composites are exposed to a transient electromagnetic field, a rapid temperature increase can be observed due to joule heating from magnetic induction. The electromagnetic induction heating and heat transfer in the composite are anisotropic and concentrated upon the carbon fiber orientation and distribution. In addition, the strength and frequency of transient electromagnetic fields have great influence on the final quality of the composite. A computational model has been developed by solving coupled Maxwell’s and heat transfer equations. The analysis accounts for the three-dimensional transient electromagnetic field and electrical conductivity of the composite material. This paper will illustrate the derived formulation and numerical solution based on finite element methods. The developed code is validated with a 2D closed-form solution. Numerical simulations of a cylinder and a flat laminated plate are conducted to illustrate the computational capability. The induction heating for composite manufacture is also discussed for current Army’s applications.

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Li, Bin, Wenjian Kuang, Wenjie Yan, Ying Tian, Ning Wang, and Jun Wu. "Research on sound insulation performance and noise reduction optimization of composite laminated cylindrical shells in the low and middle-frequency bands." Journal of Mechanics 40 (2024): 783–95. https://doi.org/10.1093/jom/ufae059.

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ABSTRACT A composite laminated cylindrical shell noise experimental device is constructed to address sound insulation issues in low and middle-frequency bands. The composite cylindrical shell's sound insulation performance is tested within the 100–1000 Hz frequency range, obtaining the cavity's noise spectrum. The LMS Virtual.Lab Acoustic software for simulation is utilized to generate a corresponding finite-element model, which is subsequently verified by comparing it to the experimental data to ensure its accuracy. The study investigates the impact of composite fiber type, layer angle and material thickness on the acoustic insulation properties of a cylindrical shell. Additionally, the genetic algorithm is used to optimize the layer angle of the composite laminated cylinder shell. The results suggest that the insulation efficiency of the composite cylindrical shell improves as the fiber's modulus of elasticity and the material's thickness increase throughout the frequency ranging from 100 to 1000 Hz. The impact of the layer angle of the composite material on the sound transmission loss varies with the frequency. Furthermore, optimizing the layer angle of the fiber employing a genetic algorithm dramatically improves the sound insulation performance within the specified frequency range of 400–1000 Hz.

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TANG, Qian. "STACKING SEQUENCE OPTIMIZATION OF LAMINATED COMPOSITE CYLINDER SHELL FOR MAXIMAL BUCKLING LOAD." Chinese Journal of Mechanical Engineering (English Edition) 21, no. 04 (2008): 31. http://dx.doi.org/10.3901/cjme.2008.04.031.

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Firouzabadi, Farzin, Amran Bin Ayob, S. Sharifi Teshnizi, and G. Sharifishourabi. "Mechanical Response of Laminated Composite Cylindrical Shell Subjected to Radial Patch Loading." Applied Mechanics and Materials 229-231 (November 2012): 292–96. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.292.

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Due to significant amount of applications in industries, composite materials and structures are subjected to many different types of loading. One of the most common types of these loading is radial patch loading. Due to the complexity, calculation of radial shell deflection is the main character of the cylinder behavior when subjected to patch loading. The aim of this study is to investigate the mechanical behavior of composite cylindrical shell subjected to radial patch loading. The radial deflection of the laminated shell is investigated in detail where analytical and finite element methods (FEM) are used. The results through both approaches are compared to validate the accuracy of the analytical method. This is followed by a parametric study to determine the effect of some operation parameters on radial displacement. The results show close agreement between the analytical and numerical methods.

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LIMI, Bao, Masayuki SAKURAI, and Akihiro TAMURA. "1208 The Effect on Torsional Damping by the Elastic Modulus of Laminated Composite Cylinder." Proceedings of Conference of Hokuriku-Shinetsu Branch 2001.38 (2001): 385–86. http://dx.doi.org/10.1299/jsmehs.2001.38.385.

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Argyris, John, Lazarus Tenek, Ioannis Andreadis, Michalis Athanasiou, and Georgios Pavlos. "On Chaotic Oscillations of a Laminated Composite Cylinder Subject to Periodic Application of Temperature." Chaos, Solitons & Fractals 9, no. 9 (1998): 1529–54. http://dx.doi.org/10.1016/s0960-0779(97)00134-3.

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Lamba, Navneet Kumar, and K. C. Deshmukh. "Hygrothermoelastic response of a finite solid circular cylinder." Multidiscipline Modeling in Materials and Structures 16, no. 1 (2019): 37–52. http://dx.doi.org/10.1108/mmms-12-2018-0207.

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Purpose In this paper, a solid circular cylinder of finite length occupying the space 0⩽r⩽1, 0⩽z⩽h is considered. The purpose of this paper is to adopt a linear hygrothermal effect to analyze the unsteady state responses in a finite long solid cylinder subjected to axisymmetric hygrothermal loading T=TR and C=CR at the surface. The analytical solution of temperature, moisture and thermal stresses is obtained by using the integral transform technique. The coupling and uncoupling effects of temperature, moisture and thermal stresses are discussed for a graphite fiber-reinforced epoxy matrix composite material (T300/5208). The numerical results of transient response hygrothermoelastic field are presented graphically. Design/methodology/approach In the present problem, hygrothermoelastic response of a finite solid circular cylinder has been investigated by integral transform technique consisting of Laplace transform, Hankel transform and Fourier-cosine transform. The problem is investigated subjected to prescribed sources. Numerical algorithm has been developed for numerical computation. Findings The analytical solution of temperature, moisture and thermal stresses is obtained by using the integral transform technique. The coupling and uncoupling effects of temperature, moisture and thermal stresses are discussed for a graphite fiber-reinforced epoxy matrix composite material (T300/5208). The numerical results of transient response hygrothermoelastic field are presented graphically. Research limitations/implications The work presented here is mostly hypothetical in nature and totally mathematical. Practical implications It may be useful for composite materials, composite laminated plates in hygrothermal environment. Also it is having the applications in hygrothermal field where porous media exposed to heat and moisture. The problem investigated will be beneficial for the researcher working in the field thermoelastic diffusion and hygrothermoelastic materials. Originality/value Till date, the other authors did the research work on hygrothermal effect of an infinitely long cylinder without thickness. In this paper, the authors consider finite solid cylinder with finite length and discuss the hygrothermal effect within a small range. Second, the material properties are both homogenous and isotropic and are independent of both temperature and moisture.

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Kheirkhah Barzoki, Parvaneh, Masoud Latifi, and Amir Masoud Rezadoust. "Response surface methodology optimization of electrospinning process parameters to fabricate aligned polyvinyl butyral nanofibers for interlaminar toughening of phenolic-based composite laminates." Journal of Industrial Textiles 49, no. 7 (2018): 858–74. http://dx.doi.org/10.1177/1528083718798635.

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In this study and for the first time, aligned nanofibers were produced from low molecular weight polyvinyl butyral. Using response surface methodology, the preparation condition of aligned nanofiber was optimized in terms of nanofiber diameter and its structural stability. Central composite design as a response surface methodology was employed and the effects of process variables and their influence on nanofiber diameter were investigated. Based on a statistical analysis, the use of a model, which was used to determine the nanofiber diameter, proved to be successful because of its low probability value (0.0073) and high correlation coefficient (0.9619). A high-speed cylinder collector was used to fabricate aligned polyvinyl butyral nanofibers. The optimum conditions of 17.5 kV voltage, 10 cm collector distance, 13% solution concentration, and 2100 r/min rotational speed were obtained from experiments. The least diameter of 158.6 nm along with a stable structure was determined for polyvinyl butyral nanofiber prepared under the optimum conditions. An aligned polyvinyl butyral nanoweb was applied on the mid-layer of glass-phenolic laminated composites as an interlaminar reinforcement. The fracture behavior of the laminates was determined by end-notched flexure tests. Excellent toughening property which was observed for the aligned polyvinyl butyral nanofibers caused the mode-II fracture toughness and its maximum force to increase by 25.2 and 40.8%, respectively.

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Yildirm, V. "A Numerical Study on the Free Vibration of Symmetric Cross-Ply Laminated Cylindrical Helical Springs." Journal of Applied Mechanics 66, no. 4 (1999): 1040–43. http://dx.doi.org/10.1115/1.2791780.

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The free-vibration problem of (0°/90°/90°/0°) laminated composite cylindrical helical springs is modeled theoretically as a continuous system. The first-order shear deformation theory is employed in the mathematical model. The free-vibration equations are solved by the transfer matrix method. A nondimensional parametric study is performed to investigate the effects of the number of active coils, the ratio of the diameter of the cylinder to the thickness of section, the helix pitch angle, and material types on the first six natural frequencies of helical springs with square section and fixed-fixed ends.

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Samuel, W. Chung, and Ju Hyun-ho. "Application of Uniformly Valid Shell Theory." Engineering and Technology Quarterly Reviews 4, no. 1 (2021): 10–23. https://doi.org/10.5281/zenodo.4529496.

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For the purpose of demonstrating the applicability of the previously derived theories, the problem of a laminated circular cylindrical shell under internal pressure and edge loadings will be examined.  The cylinder is assumed to consist of boron/epoxy composite layers.  Each layer is taken to be homogeneous but anisotropic with an arbitrary orientation of the elastic axes.  We need not consider the restriction of the symmetry of the layering due to the non-homogeneity considered in the original development of the theory expressed by the constitutive equations.  Thus, each layer can possess a different thickness.

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Yang, Zilong, Wusheng Li, and Fujiang Yang. "Study on buckling of thin-walled composite cylinder under C-SS boundary condition." Journal of Physics: Conference Series 2775, no. 1 (2024): 012011. http://dx.doi.org/10.1088/1742-6596/2775/1/012011.

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Abstract The spigot is a common connecting method for composite containers with thin walls. The fixture is closer to the thin-walled cylindrical shell with one end clamped and one end supported (C-SS) than the boundary conditions of typical pressure vessels, which are supported (SS-SS) or clamped (C-C) at both ends. Under the boundary condition, there are very few calculations and experimental research. A buckling model of the thin-walled composite vessel was built, and the critical load was determined using the energy technique and the classical thin-walled theory. Using nonlinear numerical analysis and FEM, the buckling mode was simulated. Numerical examples were used to examine the impacts of the spigot’s length, boundary conditions, layup thickness, and sequencing on the critical load. The findings indicate that a shorter spigot, a thicker layup, and a small-angle layer closer to the center all increase the critical load. The boundary conditions of SS-SS, C-S, and C-C experienced increasing critical loads in that order; the latter was around 1.5~2 times more than the former. Ultimately, external pressure tests were used to evaluate the buckling critical loads of two distinct laminated thin-walled composite vessels, confirming the correctness of both the FEM results and the theoretical model. The variance for the former was 15%, while the latter was 8%. The findings can serve as guidelines for designing interference and winding pre-stress spigots and the structural stability study of thin-walled composite vessels.

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Wen, Wei Dong, Jian Li, Hai Tao Cui, Ying Xu, and Hong Jian Zhang. "Strain Characteristic of Filament Wound Composite Cylinder under Axial Loading." Advanced Materials Research 415-417 (December 2011): 395–98. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.395.

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Experimental investigations were performed on strain characteristic of filament wound composite cylinder. Cylinders are wound with S-1 glass fiber and epoxy resin, and then subjected to an axial tension. During loading, strains at three fiber crossing position and one laminate region on cylinder’s surface are measured by gauges for better understanding strain field. For all specimens, strains at fiber crossing positions are larger than that of laminate region. This indicates that fiber undulation caused by winding process affects mechanical response of filament wound composites.

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Svoboda, Pavel, and Alexander N. Kravtsov. "Mathematical Model of Seismoexplosion in Tunnel Surrounding." Applied Mechanics and Materials 744-746 (March 2015): 1021–26. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1021.

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The construction of objects of critical infrastructures such as a new roads, utility tunnels, communication networks, underground parks and other structures is associated by the way with generation of vibrations in the vicinity of the underground structures, and not only human lives can be lost but also extensive material damage can be expected due to technological and natural hazards based on vibrations. This paper presents the general governing equations for coupled thermo-hydromechanical process in the tunnel surrounds. Modeling and analysis of laminated composite cylinder applied for the objective analysis of shock wave propagation in the soils and possibilities to estimates of the tunnel structure damage.

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LUO, Zhong. "Structure Size Interval of Sinmilar Test Model of the Laminated Composite Thin-wall Short Cylinder Shell." Journal of Mechanical Engineering 51, no. 17 (2015): 43. http://dx.doi.org/10.3901/jme.2015.17.043.

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35

Wang, LL, ZS Shao, and YZ Chang. "Theoretical investigation into the thermo-mechanical stresses in cross-ply laminated composite cylinder with finite length." Journal of Thermoplastic Composite Materials 26, no. 1 (2011): 44–59. http://dx.doi.org/10.1177/0892705711417657.

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36

OOTAO, Yoshihiro. "910 Transient Piezohygrothermoelastic Problem of a Composite Hollow Cylinder Composed of Piezoelectric and Anisotropic Laminated Materials." Proceedings of Conference of Kansai Branch 2008.83 (2008): _9–10_. http://dx.doi.org/10.1299/jsmekansai.2008.83._9-10_.

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OOTAO, Yoshihiro, and Takashi FUKADA. "P018 Thermoelastic Analysis of a Laminated Composite Hollow Cylinder with an Interlayer of Functionally Graded Material." Proceedings of the Materials and Mechanics Conference 2007 (2007): 631–32. http://dx.doi.org/10.1299/jsmemm.2007.631.

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Yuan, Chongxin, Bert Roozen, Otto Bergsma, and Adriaan Beukers. "The sound insulation of composite cylindrical shells; a comparison between a laminated and a sandwich cylinder." Journal of the Acoustical Society of America 131, no. 4 (2012): 3270. http://dx.doi.org/10.1121/1.4708221.

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Miramini, Seyed Mohammad, and Abdolreza Ohadi. "Three-Dimensional Vibration of Fluid-Conveying Laminated Composite Cylindrical Shells with Piezoelectric Layers." International Journal of Structural Stability and Dynamics 19, no. 03 (2019): 1950026. http://dx.doi.org/10.1142/s0219455419500263.

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Cylindrical shells containing flowing fluid have wide applications in various industries. They can be enhanced as smart structures through inclusion of piezoelectric layers, of which the dynamic behavior, however, has not been fully understood. In this paper, the vibration and dynamic analysis of a laminated composite hollow cylinder with piezoelectric layers, subjected to an internal incompressible fluid flow is investigated. It is assumed that the shell is simply supported and the fluid is inviscid and irrotational. The differential equations of the elastic layers, piezoelectric layers, and flowing fluid are derived by the three-dimensional (3D) theory of elasticity, theory of piezoelectricity, and potential flow theory, respectively. A well-known recursive method is applied and extended for the first time to solve the fluid-conveying pipes using 3D theory. This approach makes it possible for the solutions to converge to the exact ones with reasonable computational cost. After validating the results against those available in the literature, the vibrational behavior of the system is examined for various cases with the effect of each parameter investigated. Also, the influence of fluid on the vibration and stability of the shell has been analyzed. The present method can be used to analyze and design hybrid shells conveying fluid with high accuracy and low computational cost.

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Černe, B., Z. Bergant, R. Šturm, J. Tavčar, and D. Zorko. "Experimental and numerical analysis of laminated carbon fibre-reinforced polymer gears with implicit model for coefficient-of-friction evaluation." Journal of Computational Design and Engineering 9, no. 1 (2022): 246–62. http://dx.doi.org/10.1093/jcde/qwab083.

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Abstract Laminated composites have so far received little attention as a potential material for gear drive applications. In the presented study, the thermomechanical performance of a newly developed type of epoxy impregnated, autoclave-cured carbon fibre-reinforced polymer gear—running in pair with a steel pinion—was analysed, using a combination of experimental and numerical approaches. The employed methods enabled the identification of the composite’s mechanical, thermal, and tribological characteristics, as related to the studied gear pair application. A newly proposed, finite-element-analysis-based iterative procedure enabled an implicit evaluation of the analysed material pair’s coefficient of friction (COF), which is a key parameter in determining the gear pair’s thermomechanical characteristics. For the considered material pair, a value of 0.34 was identified for the coefficient in the quasi-steady region. As the coefficient is strongly correlated with frictional heat generation and significantly affects the surface shear stress, it can consequently have a meaningful influence on the composite’s wear rate. The developed COF identification procedure was validated using a reciprocating cylinder-on-flat tribological test method. The composite gear’s service life was additionally tested at various running loads, resulting in pitch contact pressures ranging between 400 and 540 MPa. Lifetime gear test results showed a markedly superior performance compared to the high-temperature thermoplastic polyether ether ketone, which is typically employed in the most demanding polymer gear applications. Several methods are additionally proposed that could further improve the developed composite gears’ performance.

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41

Swanson, Stephen R., and Matt Offolter. "Analysis of a Fiber Composite Cylinder Laminated with an Elastic-Plastic Aluminum Liner under Internal Pressure Loading." Journal of Thermoplastic Composite Materials 11, no. 5 (1998): 466–77. http://dx.doi.org/10.1177/089270579801100506.

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42

FUKADA, Takashi, and Yoshihiro OOTAO. "701 Transient Thermoelastic Analysis of a Laminated Composite Hollow Cylinder with an Interlayer of Functionally Graded Material." Proceedings of Conference of Kansai Branch 2008.83 (2008): _7–1_. http://dx.doi.org/10.1299/jsmekansai.2008.83._7-1_.

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43

Yousuf, Louay S. "Largest Lyapunov Exponent Parameter of Stiffened Carbon Fiber Reinforced Epoxy Composite Laminated Plate Due to Critical Buckling Load Using Average Logarithmic Divergence Approach." Mathematics 10, no. 12 (2022): 2020. http://dx.doi.org/10.3390/math10122020.

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The purpose of this study is to calculate the bending deflection which is used to investigate the largest Lyapunov exponent due to buckling load. The design methodology is to calculate the largest Lyapunov exponent parameter at different thickness ratios and different fiber volume fractions using one and two stiffeners in order to reduce the chaotic phenomenon. The practical implication is to find the bending deflection using a strain gauge through a strain meter, in which this bending deflection is used in the algorithm of average logarithmic divergence to calculate the largest Lyapunov exponent experimentally. The experiment set up is carried out using Southwell plot when the upper head of the servo hydraulic cylinder moves downward. There are no limitations to this research, since it works on all kinds of composite materials, different thickness ratios, and different number of layers, different fiber volume fractions, and different boundary conditions. The findings of this work will allow us to detect the chaotic phenomenon in a stiffened carbon fiber reinforced epoxy composite laminated plate using the conception of the largest Lyapunov exponent parameter. The higher order shear deformation theory (HOSDT) of plates is used to analytically calculate the set of data of the bending deflection against time. All the systems used in this paper have non-periodic motion and chaos because the value of the Lyapunov parameter is above zero. The originality of this paper is the use of the algorithm code of average logarithmic divergence to investigate the value of the largest Lyapunov exponent parameter in the presence of stiffeners based on the bending deflection of a carbon epoxy composite laminated plate.

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Kumar, M. Ashok, A. M. K. Prasad, and D. V. Ravishankar. "Effect of Quasi-Static Loading on the Composite Laminates." Advanced Engineering Forum 20 (January 2017): 10–21. http://dx.doi.org/10.4028/www.scientific.net/aef.20.10.

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The low velocity impact is a common phenomenon which occurs in fiber reinforced polymer composite products like LPG cylinders, fighter aircraft fuel drop tanks, aircraft wing surfaces, sports goods etc. The consequences of low velocity impact will create a considerable damage and ultimately lead to a premature failure of the structure. Hence the polymer composites for engineering applications must be provided with a better design solution. From the literature survey it is observed that, the response of composite laminates subjected to quasi-static loading, exhibits similar results as that of low velocity impact. Polymer reinforced composites are poor in damage tolerance with better strength to weight ratio than conventional materials. However composite materials can be tailored to meet the design requirements by manipulating fiber orientations and laminae stacking sequence. In the present paper, principles of classical laminate theory are considered for analysis. FEM is implemented for thorough understanding of the failure mechanism of each laminate by layer wise. Simulated quasi-static loading tests and observed the layer wise distribution of transverse strain intensity. The experimental setup is designed and fabricated as per ASTM D 6264 standards. The E-glass/epoxy composite laminate is quasi-statically loaded at its center by a steel ball indenter of diameter 8.7mm and its response is measured by the degree of opacity or translucency in terms of interlaminar and intra-laminar damage area. The stacking sequence of composite laminates are chosen as [00/600]12, [00/750]12 and [00/900]12. The damage areas obtained from numerical analysis are in good agreement with experimental results.

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Xi, Z. C., G. R. Liu, K. Y. Lam, and H. M. Shang. "A strip-element method for analyzing wave scattering by a crack in an immersed axisymmetric laminated composite cylinder." Journal of the Acoustical Society of America 108, no. 1 (2000): 175–83. http://dx.doi.org/10.1121/1.429454.

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Rudakov, Konstantin, and Yurii Dyfuchyn. "Determination of influence factores and stress concentration factor for express strength calculations of single-cut bolted connections of layered composite plates. Message 1." Mechanics and Advanced Technologies 8, no. 4(103) (2024): 373–84. https://doi.org/10.20535/2521-1943.2024.8.4(103).311624.

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When designing bolted joints (BJ), it is necessary, in particular, to carry out their verification calculations for strength. At the same time, it is desirable to use express analysis: calculations by simple formulas of sufficient accuracy. For BJ of plates made of layered polymer composite materials (PCM), the problem has not been solved yet. Objective. To revise, to rethink and structure the formulas for the express calculation of the maximum stress when the hole is in contact with a rigid cylinder (bolt). Carry out a review on contrasting examples of materials and schemes of PCM plate reinforcement, taking into account possible lateral bolt/hole clearances in a practically relevant range, based on previously obtained and new results. Numerical calculations were carried out using the finite element method (contact problem) for the BJ plate made of laminated PCM. 3D orthotropy of each monolayer was assumed. Several simple express analysis formulas were checked, and their structuring was carried out. The results are summarized in a table, illustrations are given. Five factores influencing the value of the maximum tensile stress near the hole in the laminated PCM plate are separated. Numerical estimates were obtained that characterize the degree of influence on the stress concentration on the surface of the hole: material characteristics, reinforcement scheme, and bolt/hole gap sizes in the laminated PCM plate, as well as the accuracy of the considered formulas. A change in the material and scheme of reinforcement of the layered PCM leads to a significant change in the values of the maximum stresses and stress concentration factor (SCF) in the bolt-loaded hole in the cross-section of the plate weakened by the hole. The considered express analysis formulas have insufficient accuracy for contrasting cases of materials and plate reinforcement schemes. Additional research is needed, especially for the reinforcement scheme [φ/-φ]2s at 0<φ<90.

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A, Thirunavukkarasu, Shanmugasundaram K, and Latha G. "Hybrid Composites for the Design and Development of Pressure Vessel for Underwater Applications." Defence Science Journal 74, no. 01 (2023): 108–18. http://dx.doi.org/10.14429/dsj.74.19184.

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The study’s main objective is to design and develop pressure vessels in underwater applications using Hybrid composites-Fibre Metal Laminates (FML) so that the weight will be reduced. The proposed pressure vesselaccommodates electronics in the underwater ambient noise measurement system under an external hydrostatic pressure of 1 MPa (10 bar). The research study aims initially to design and develop a pressure vessel with stainless steel 316 L and subsequently design a pressure vessel with hybrid composites with a combination of composite materials of E-glass and carbon/epoxy materials with a metal alloy stainless steel 316 L. The pressure vessel has been optimised with varying metal and composite percentage combinations. The cylinder’s wall thickness has been pivotal in optimizing pressure vessel design. Classical Laminate Theory (CLT) transforms the FML pressure vessel or cylinder into a rectangular plate. As preliminary measures, FML specimen with a size of 0.45 m square laminate and 0°orientation has been developed with 50 % metal layer and 50 % fibre composites, and corresponding mechanical tests have been carried out as per the standards. The tensile strength of the developed FML is 420 MPa compared to base metal (SS316 L) strength of 556 MPa, and similarly, Flexural and Impact properties have shown a higher level when compared to other types of FMLs.

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FUKADA, Takashi, and Yoshihiro OOTAO. "816 Transient Thermoelastic Analysis of a Laminated Composite Hollow Cylinder with an Interlayer of Functionally Graded Material : Generalized Plane Strain Problem." Proceedings of Conference of Kansai Branch 2009.84 (2009): _8–16_. http://dx.doi.org/10.1299/jsmekansai.2009.84._8-16_.

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Zhao, Hong Jin, Zhu Shan Shao, and Min Zhe Wu. "Analysis of Thermo-Mechanical Stresses in Laminated Hollow Circular Cylinder with Finite Length." Key Engineering Materials 462-463 (January 2011): 1182–87. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.1182.

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Thermo-mechanical stresses analysis of laminated hollow circular cylinder with finite length are carried out in this study based on the theory of laminated composites. The hollow circular cylinders with finite length are simply supported at four edges and are subjected to nonuniform thermal and mechanical loadings on the inner and outer surfaces. Analytical solutions of temperature distribution and thermo-mechanical stress fields are derived by using variable separation approach and series solving method. A four -layer laminated hollow circular cylinder with finite length is numerically analyzed by using the present method. All results are graphically presented and briefly discussed.

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Stedile Filho, Paulo, José Humberto S. Almeida, and Sandro C. Amico. "Carbon/epoxy filament wound composite drive shafts under torsion and compression." Journal of Composite Materials 52, no. 8 (2017): 1103–11. http://dx.doi.org/10.1177/0021998317722043.

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Composite cylinders to be used as half shafts must satisfy several requirements, such as critical speed, critical buckling torque, and load carrying ability. This study focused on the investigation of carbon fiber reinforced epoxy composite cylinders produced by filament winding to be used as half shafts. A preliminary torsional test in a [±45]5 cylinder was performed and three other laminates were chosen for the study: [±22/±45], [±89/±45], and [±45/±45]. Radial and longitudinal compression tests were performed. Mechanical analysis has been carried out using analytical and numerical approaches, and good correlation was found between them and the experimental values. The [±45/±45] cylinder showed the best performance under torsional loading, as expected, as well as radial and longitudinal compression, but not critical buckling torque.

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Journal articles on the topic 'Laminated composite cylinder'

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