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Computers and Concrete Volume 25, Number 5, May 2020 , pages 411-425 DOI: https://doi.org/10.12989/cac.2020.25.5.411 |
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Computer-aided approach for modelling of FG cylindrical shell sandwich with ring supports |
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Muzamal Hussain, Muhammad Nawaz Naeem, Muhammad Shabaz Khan and Abdelouahed Tounsi
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| Abstract | ||
| In this paper, the shell material has been taken as functionally graded material and their material quantity is located by the exponential volume fraction law. Moreover, the impact of ring supports around the shell circumference has been examined for their various positions along the shell axial length. These rings support restraints the radial displacement in the transverse direction. While the axial modal deformation functions have been estimated by characteristic beam functions and nature of materials used for construction of cylindrical shells. The fundamental natural frequency of cylindrical shell of parameter versus ratios of length- and height-to-radius for a wide range has been reported and investigated through the study. In addition, by increasing height-to-radius ratio resulting frequencies also increase and frequencies decrease on ratio of length-toradius. Though the trends of frequency values of both ratios are converse to each other with three different boundary conditions. Also it is examined the position of ring supports with length-to radius ratio, height-to-radius ratio and varying the exponent of volume fraction. MATLAB software package has been utilized for extracting shell frequency spectra. The obtained results are confirmed by comparing with available literature. | ||
| Key Words | ||
| Galerkin\'s method; Lagrangian functional; ring supports; MATLAB; CSs | ||
| Address | ||
| Muzamal Hussain, Muhammad Nawaz Naeem, Muhammad Shabaz Khan: 1Department of Mathematics, Govt. College University Faisalabad, 38000, Faisalabad, Pakistan Abdelouahed Tounsi: Materials and Hydrology Laboratory, University of Sidi Bel Abbes, Algeria Faculty of Technology, Civil Engineering Department, Algeria; Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, 31261 Dhahran, Eastern Province, Saudi Arabia | ||