Experimental and Numerical Analysis of the Effect of Filament Curvature Pattern on the Internal Hydrostatic Threshold of GFRP Composite Cylinder Made by Filament Winding Process
Document Type : Original Article
Authors
1
Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
2
Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran
Abstract
The filament winding process is one of the most important and widely used processes in the manufacture of composite structures in order to achieve high strength and rigidity. In this process, there are important parameters such as fiber tension, how the fibers are twisted, the effect of layering, twisting angle, fiber twisting pattern of fibers, type of material suitable for twisting, etc. , which can play a significant role in this the strength of the processstructure. In this regard, the twisting pattern has been less studied by researchers less than other parameters. In this research, the effect of fiber twisting pattern on the hydrostatic pressure threshold of epoxy glass cylinder has been investigated. For this purpose, first, glass/epoxy cylinders with 4 four different twisting patterns were made with ± 54 arrangement and subjected to hydrostatic test with internal pressures of 5-50 bar, where the amount of radial displacement in the middle of the cylinder was measured experimentally. In the following, the amount of radial displacement of cylinders due to the internal pressure was is also modeled using numerical analysis (Abaqus) and compared with experimental results. In order to validate the experimental and numerical results, theoretical model was used and the results were compared. All of the results obtained were in acceptable limits and showed that the twist pattern having with finer texture has a higher compressive strength. Also, the simulation results showed a good agreement with the experimental results
Keywords
Subjects
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Volume 2, Issue 2
February 2023Pages 60-77
- Receive Date 21 October 2022
- Revise Date 27 November 2022
- Accept Date 05 December 2022