Hafiz Muhammad Waqas 1, Dongyan Shi 1, Muhammad Imran1, Sohaib Z Khan2, Elsayed Fathallah3, and Mahmoud Helal4,5    

1College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, 150001, China
2Department of Mechanical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah 41411, Saudi Arabia
3Civil Engineering Department, MTC Kobry Elkobba, Egypt Ships and Submarines Engineering Department, Military Technical College, Cairo 11787, Egypt
4Department of Mechanical Engineering, Faculty of Engineering, Taif University, Box P.O 1109, Taif 21944, Saudi Arabia
5Production and Mechanical Design Dept., Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt


Received: July 9, 2022
Accepted: October 17, 2022
Publication Date: December 14, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202309_26(9).0010  

The main purpose of this research was to use wood as a core material of composite sandwiched submersible pressure hulls to reduce weight and increase stability under hydrostatic pressure. This task presents design optimization for a submersible pressure hull by means of Finite Element Analysis (FEA). Different composite materials were implemented, and various kinds of woods were consumed as a core. Genetic Algorithm (GA) was used to conduct the optimization process. The ply layer numbers and core thickness, for pressure hulls have been optimized for the configuration of [0l/90m/0n/0c/0o/90p/0q]. The objective function was to decrease the buoyancy factor and to increase the buckling factor. The material failure criteria, and buckling factor were selected as constraints for the optimization process. A comparison was made between the steel pressure hull and promising results were achieved comparatively in favor of using composite material with the combination of wood core.

Keywords: Sandwich Structures; Submersible pressure hulls; Parametric analysis, Optimization, Genetic Algorithm

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