Affect of Finite Element Modelling on Static Behavior of Underwater Shell

Year : 2025 | Volume : 13 | Special Issue 02 | Page : 154 163
    By

    Jayanth Datta Thota,

  • Navaneeth Manikonda,

  • Venkateswararao Mendol,

  • Balakrishna Murthy Vallabhaneni,

  1. UG Student, Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Siddhartha Academy of Higher Education (Deemed to be University), Vijayawada, Andhra Pradesh, India
  2. UG Student, Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Siddhartha Academy of Higher Education (Deemed to be University), Vijayawada, Andhra Pradesh, India
  3. UG Student, Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Siddhartha Academy of Higher Education (Deemed to be University), Vijayawada, Andhra Pradesh, India
  4. Professor, Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Siddhartha Academy of Higher Education (Deemed to be University), Vijayawada, Andhra Pradesh, Andhra Pradesh, India

Abstract

The objective of the present study is to compare and contrast different numerical models based on their mesh quality and material properties in predicting the response of an underwater shell under an external pressure of 1 MPa. Two different mesh qualities with the same element size are developed for solid geometries without and with slicing the solids at geometric discontinuities to enhance the element quality. From the static response of the structure from both the solid models, variation in deformation and stresses is observed due to changes in element quality for the same size. The observed difference of around 2.5% in the results between the converged sliced model and the corresponding non-sliced model highlights the impact of mesh quality and modeling approach on the accuracy of the simulation. Extending the analysis by replacing the aluminum shell casing with carbon-epoxy composite (CFRP) introduces an additional layer of complexity due to the material properties and behavior of CFRP compared to aluminum. The comparison between the results obtained from the sliced model with CFRP and aluminum shell casings will provide insights into how the change in a material affects the structural response under external pressure. The entire process is executed using ANSYS software.

Keywords: Resin, epoxy, underwater capsule, element quality, mechanical properties, solid-shell model, FEA.

[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]

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How to cite this article:
Jayanth Datta Thota, Navaneeth Manikonda, Venkateswararao Mendol, Balakrishna Murthy Vallabhaneni. Affect of Finite Element Modelling on Static Behavior of Underwater Shell. Journal of Polymer and Composites. 2025; 13(02):154-163.
How to cite this URL:
Jayanth Datta Thota, Navaneeth Manikonda, Venkateswararao Mendol, Balakrishna Murthy Vallabhaneni. Affect of Finite Element Modelling on Static Behavior of Underwater Shell. Journal of Polymer and Composites. 2025; 13(02):154-163. Available from: https://journals.stmjournals.com/jopc/article=2025/view=198584


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Special Issue Subscription Original Research
Volume 13
Special Issue 02
Received 01/05/2024
Accepted 21/10/2024
Published 22/01/2025
Publication Time 266 Days
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