Quasi-static compression tests of overwrapped composite pressure vessels under low velocity impact.

Mohammed, Auwalu I.; Raghupathy, Kaarthikeyan; Baltazar, Osvaldo De Victoria Garcia; Onokpasah, Lawson; Carvalho, Roger; Mogensen, Anders; Hassani, Farzaneh; Njuguna, James

Abstract

Pressure vessels are being utilised in different applications that are indispensable, including automobile, aerospace, underwater vehicles, oil and gas, and chemical engineering among others. However, there is a lack of knowledge on the influence of induced damage and the resulting performance of such vessels under quasi-static loading and axial compression. Specifically, the vessels studied in this study are made up of a high-density polyethylene liner and glass fibre overwraps. Therefore, this research investigated the load-bearing capacities and the energy absorbed of the indented vessels in axial and hoop directions, to determine the resistance of the vessels after such damage. The study used damage characterisation microscopy, non-destructive testing and analysis. Quasi-static transverse and axial compression testing was performed on composite cylinders made of polyethylene liner and glass fibre overwraps. Both quasi-static and axial compression tests were performed with the Instron Machine 3382; quasi-static compression was performed at speed of 500 mm/min, while the axial compression test was performed at speed of 2.5 mm/min. The results for the damage profile and the effect on compressive strength of the composite damaged and two non-damaged cylinders were found to be relatively similar. Additionally, the results demonstrate that the quasi-static compression had little or no influence on the axial strength of the cylinders. The microscopic and Dolphicam2 results for damage characterisation on the cylinders revealed fibre break and delamination. On the other hand, visual examination results show local bucking and brooming failure at the bottom of the cylinders.

Citation

MOHAMMED, A.I., RAGHUPATHY, K., BALTAZAR, O.D.V.G., ONOKPASAH, L., CARVALHO, R., MOGENSEN, A., HASSANI, F. and NJUGUNA, J. 2023. Quasi-static compression tests of overwrapped composite pressure vessels under low velocity impact. Composite structures [online], 327, article number 117662. Available from: https://doi.org/10.1016/j.compstruct.2023.117662

• Journal Article Type: Article
• Acceptance Date: Oct 26, 2023
• Online Publication Date: Oct 29, 2023
• Publication Date: Jan 31, 2024
• Deposit Date: Nov 3, 2023
• Publicly Available Date: Nov 3, 2023
• Journal: Composite structures
• Print ISSN: 0263-8223
• Electronic ISSN: 1879-1085
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 327
• Article Number: 117662
• DOI: https://doi.org/10.1016/j.compstruct.2023.117662
• Keywords: Composites; NDT; Damage; Pressure vessel; Compression; Hydrogen
• Public URL: https://rgu-repository.worktribe.com/output/2126646