Cryogenic temperature effects on the tensile strength of various materials

Presenter Information

Ian CheyneFollow

Start Date

April 2025

Location

2nd floor - Library

Abstract

In low temperature applications, the tensile properties of materials has been observed to differ from observations in ambient conditions. The extent at which these properties vary at differing temperature ranges is the topic of explorations. Using a modified Dewar, which has been added to an existing tensile test apparatus, it is possible to submerge a material sample in cryogenic liquids. This will bring the samples to a more uniform temperature, which is important to a consistent result. After applying force to samples, the stress strain analysis can be interpreted to determine the effects of the test temperature on the results. Various materials have been tested. The reproducible manufacturing and testing of these samples have also been explored. Forged Carbon Fiber is a relatively new development, and the low temperature tensile properties have been explored to compare newer material developments to established methods. To build upon these observations, this can apply to the Hydrogen economy. As this economy becomes more viable in both an economic and material sense, research into the effective storage of cryogenic hydrogen is integral to an efficient economy. Being able to determine the best materials for such vessels or utilities will be an important step in optimizing these processes.

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Apr 23rd, 2:15 PM Apr 23rd, 3:15 PM

Cryogenic temperature effects on the tensile strength of various materials

2nd floor - Library

In low temperature applications, the tensile properties of materials has been observed to differ from observations in ambient conditions. The extent at which these properties vary at differing temperature ranges is the topic of explorations. Using a modified Dewar, which has been added to an existing tensile test apparatus, it is possible to submerge a material sample in cryogenic liquids. This will bring the samples to a more uniform temperature, which is important to a consistent result. After applying force to samples, the stress strain analysis can be interpreted to determine the effects of the test temperature on the results. Various materials have been tested. The reproducible manufacturing and testing of these samples have also been explored. Forged Carbon Fiber is a relatively new development, and the low temperature tensile properties have been explored to compare newer material developments to established methods. To build upon these observations, this can apply to the Hydrogen economy. As this economy becomes more viable in both an economic and material sense, research into the effective storage of cryogenic hydrogen is integral to an efficient economy. Being able to determine the best materials for such vessels or utilities will be an important step in optimizing these processes.