Investigation Of The Critical Zone Of CFRPType-V Pressure Vessels For H2 Storage In The Transportation Sector

Richards, Ryan (2024) Investigation Of The Critical Zone Of CFRPType-V Pressure Vessels For H2 Storage In The Transportation Sector. [USQ Project]

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Abstract

This paper aims to investigate and optimize the critical zone of carbon-fibre reinforced polymer type V pressure vessels used for hydrogen storage in the transportation sector. The critical zone is identified as one of two possible locations for failure and therefore is crucial for maintaining safety under high internal pressures. Despite its promise, the use of hydrogen as a sustainable energy source is limited by existing storage technologies.

The study begins with an extensive literature review to establish the current state of knowledge on CFRP type V pressure vessels. Key publications are used to define design parameters and develop a theoretical model. Finite element simulations were conducted utilizing ANSYS software to analyze the effects of varying polar boss width, flange length, and angle on stress and strain distributions.

Reducing polar boss width showed variable effects on the stress concentration factor whilst the introduction of a flange was found to decrease localized stress and strain concentrations. Increasing the angle of the flange significantly reduced localized stress and strain concentrations in the critical zone and improved stress distribution across the entire vessel. The optimal design parameters were found to be a reduced boss width of 63 mm coupled with an 8 mm flange orientated at 7.5°.

The findings from this research contribute to the design and development of safer and more reliable type V pressure vessels and will aid in the widespread adoption into the transportation sector.


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Item Type: USQ Project
Item Status: Live Archive
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Supervisors: Yousif, Belal
Qualification: Bachelor of Engineering (Honours) (Mechanical)
Date Deposited: 17 Mar 2026 05:56
Last Modified: 17 Mar 2026 05:56
Uncontrolled Keywords: carbon-fibre reinforced polymer; transportation; hydrogen storage
URI: https://sear.unisq.edu.au/id/eprint/53156

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