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Relevant bibliographies by topics / Orthotropic shell of inhomogeneous thickness with holes

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Academic literature on the topic 'Orthotropic shell of inhomogeneous thickness with holes'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Orthotropic shell of inhomogeneous thickness with holes"

1

Valentin, Salo, Nechiporenko Vladimir, Rakivnenko Valeriia, Horielyshev Stanislav, Gleizer Natalia, and Kebko Alexander. "Calculation of the spherical elements of non-uniform thickness for structures with holes based on the variational RVR-method." Eastern-European Journal of Enterprise Technologies 6, no. 7 (108) (2020): 36–42. https://doi.org/10.15587/1729-4061.2020.217091.

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This paper proposes a theoretically substantiated and universal new method to calculate the three-dimensional stressed-strained state of the statically loaded multi-link orthotropic shell of arbitrary thickness, made of heterogeneous material (a composite). The numerical-analytical RVR method used in this work is based on the Reissner principle, Vekua method, the R-function theory, as well as the algorithm of two-way assessment of the accuracy of approximate solutions to variational problems. In contrast to the classical principles by Lagrange and Castigliano, the application of the mixed vari

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2

Ismayilov, H. K. "FORCED VIBRATIONS OF A INHOMOGENEOUS ORTHOTROPIC CYLINDRICAL SHELL STIFFENED WITH A CROSS-SYSTEM OF RIBS IN LIQUID." Проблеми обчислювальної механіки і міцності конструкцій 2, no. 32 (2020): 132–43. http://dx.doi.org/10.15421/4220021.

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In the paper we study forced vibrations of an orthotropic cylindrical shell inhomogeneous in thickness and stiffened with a cross-system of ribs in liquid under the action of inner radial pressure pulsating in time. Based on Hamilton – Ostrogradsky variational principle, we construct a system of equations to determine the displacements of the mid-surface points of an orthotropic cylindrical shell inhomogeneous in thickness and stiffened with a cross-system of ribs under dynamical interaction with liquid. Surface loads acting on the cylindrical shell inhomogeneous in thickness and stiffened wit

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3

Noraliev, Nurilla, Bakhrom Ishniyazov, Bunyod Safarov, and Oybek Saparov. "Stress-strain state of spherical shells with two unequal holes." E3S Web of Conferences 258 (2021): 09085. http://dx.doi.org/10.1051/e3sconf/202125809085.

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This article presents the results of a numerical study of the stress concentration around two equal and unequal holes in an orthotropic spherical shell made of composite materials under the action of internal pressure. The influence of geometric (hole radii, shell thickness, distance between holes) characteristics, as well as material orthotropy and shear stiffness, on the stress state of spherical shells made of composite materials is studied. A numerical algorithm based on the finite element method has been developed and a software package has been implemented on a computer that allows solvi

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4

Valentin, Salo, Rakivnenko Valeriia, Nechiporenko Vladimir, et al. "CALCULATION OF STRESS CONCENTRATIONS IN ORTHOTROPIC CYLINDRICAL SHELLS WITH HOLES ON THE BASIS OF A VARIATIONAL METHOD." Eastern-European Journal of Enterprise Technologies 3, no. 7(99) (2019): 11–17. https://doi.org/10.15587/1729-4061.2019.169631.

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A variational numerical-analytical method (called the RVR method) is suggested for calculating the strength and stiffness of statically loaded non-thin orthotropic shell structures weakened by holes (stress concentrators) of arbitrary shapes and sizes. The theoretically substantiated new method is based on the Reissner variational principle and the method of I. N. Vekua (the method of decomposing the desired functions into the Fourier series of the orthogonal Legendre polynomials with respect to the coordinate along the constant shell thickness). In this case, the use in the proposed

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5

Guliyev, Etibar, Rashad Allahverdiyev, and Qezale Kheyrabadi. "Identification of the patterns of influence the number of reinforcing elements and the inhomogeneity parameter of the shell material on frequencies of a reinforced inhomogeneous orthotropic spherical shell with a medium." Eastern-European Journal of Enterprise Technologies 5, no. 7 (119) (2022): 35–43. http://dx.doi.org/10.15587/1729-4061.2022.266166.

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Spherical shells are used in many areas of the national economy. Spherical domes are widely used in the construction of various structures (technoparks, testing laboratories, entertainment complexes, reservoirs, etc.). They are also used in aircraft, ship structures, radar antennas and other structures. It is known that coatings have sufficient strength and durability even with a small thickness. However, to increase the working life of coatings, to ensure their long-term operation, as well as to increase their hardness, it is necessary to strengthen them on the surface or inside with rods. So

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6

Etibar, Guliyev, Allahverdiyev Rashad, and Kheyrabadi Qezale. "Identification of the patterns of influence the number of reinforcing elements and the inhomogeneity parameter of the shell material on frequencies of a reinforced inhomogeneous orthotropic spherical shell with a medium." Eastern-European Journal of Enterprise Technologies 5, no. 7(119) (2022): 35–43. https://doi.org/10.15587/1729-4061.2022.266166.

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Spherical shells are used in many areas of the national economy. Spherical domes are widely used in the construction of various structures (technoparks, testing laboratories, entertainment complexes, reservoirs, etc.). They are also used in aircraft, ship structures, radar antennas and other structures. It is known that coatings have sufficient strength and durability even with a small thickness. However, to increase the working life of coatings, to ensure their long-term operation, as well as to increase their hardness, it is necessary to strengthen them on the surface or inside with rods. So

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7

Krivenko, Olha, Yurii Vorona, and Andrii Kozak. "Finite element analysis of nonlinear deformation, stability and vibrations of elastic thin-walled structures." Strength of Materials and Theory of Structures, no. 107 (October 29, 2021): 20–34. http://dx.doi.org/10.32347/2410-2547.2021.107.20-34.

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Thin-walled shell-type structures are widely used in various branches of technology and industry. Such structures under operating conditions are usually exposed to various loads, including thermomechanical ones. Real shell structures, as a rule, have a complex shapes. To increase reliability, reduce material consumption, for technological reasons, they are designed as inhomogeneous systems in thickness. This causes a great and constant interest of engineers and designers in the problems of investigating the behavior of elastic thin-walled shell structures. The work is devoted to the meth

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8

Krivenko, Olga, Petro Lizunov, Yurii Vorona, and Oleksandr Kalashnikov. "Application of the finite element moment scheme to the investigation of thin elastic shells of inhomogeneous structure." Management of Development of Complex Systems, no. 53 (March 17, 2023): 52–62. http://dx.doi.org/10.32347/2412-9933.2023.53.52-62.

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The work is devoted to the problem of developing a universal method for studying the deformation, buckling, postbuckling behavior and vibrations of thin and medium-thickness shells of complex shape and structure under the action of mechanical and thermal loads. A wide class of shells is considered: of constant and smooth-variable thickness, with ribs and cover plates, channels and cavities, holes, sharp bends of the mid-surface, and with a multilayer structure of the material. The method is based on the positions of the 3D geometrically nonlinear theory of thermoelasticity without the use of s

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9

Krivenko, Olga, and Petro Lizunov. "Investigation of nonlinear deformation, buckling and natural vibrations of elastic shells under thermomechanical loads using a universal three-dimensional finite element." Strength of Materials and Theory of Structures, no. 114 (April 25, 2025): 35–43. https://doi.org/10.32347/2410-2547.2025.114.35-43.

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The article presents the fundamentals and features of the method for solving static problems of nonlinear deformation, buckling, post-buckling behavior and natural vibrations of a wide class of thin elastic inhomogeneous shells of various shapes and structures under the action of thermomechanical loads. The method is developed from the unified positions of the three-dimensional geometrically nonlinear theory of thermoelasticity based on the finite element method. A universal 3D finite element is used. The distinctive feature of the finite element is the presence of its additional variable para

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10

Pradeep Mohan, R. Ramesh Kumar, and S. Anil Lal. "Analytical Approach for Large Size Reinforced Square Hole With Rounded Corners in Orthotropic Circular Cylindrical Shells." Journal of Aerospace Sciences and Technologies, July 28, 2023, 84–95. http://dx.doi.org/10.61653/joast.v73i2.2021.92.

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Full field tangential stress distribution in a uniaxially loaded composite circular cylindrical shell with various laminate sequences with reinforced square hole with rounded corners is achieved and good agreement is obtained with finite element results. Available solution for stress distribution in an infinite plate with square hole under axial load is suitably modified with unknown coefficients in the power series of hole shape parameter, ε and curvature parameter, β (orthotropic plate solution + trigonometric terms as a function of πβ2 /2). The reinforcement thickness for a desired target S

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