The effect of accretion temperature on microstructure and bending strength of atmospheric ice

Date

2023-11-02

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Department

Type

Article

ISSN

2352-4928

Format

Free to read from

Citation

Fallon C, Truyen E, Eakins D, et al., (2023) The effect of accretion temperature on microstructure and bending strength of atmospheric ice, Materials Today Communications, Volume 37, December 2023, Article Number 107461

Abstract

Accurate determination of the mechanical response of atmospheric ice is key to understanding the risks associated with ice impact on aircraft during flight. Two types of atmospheric ice which are of particular interest to the aerospace industry are studied. Rime and Glaze ice are each manufactured in an icing wind tunnel facility under controlled conditions. Rime ice is accreted at a temperature of −20◦C, and Glaze ice is accreted at −5 ◦C. Quasi-static threepoint bend tests are performed on both types of ice to understand the effect of accretion temperature, and therefore microstructure, on strength. The results indicate that the ice accretion temperature, and thus microstructure, has a significant influence on the bending strength. On average, the bending strength of Rime ice is 9.0 ± 0.18 MPa compared to 4.4 ± 0.093 MPa for Glaze. The comparatively lower accretion temperature of Rime results in smaller grain sizes and higher bending strength. In contrast, the effective modulus appears insensitive to ice microstructure, with an average value of 3.5±0.12 GPa for Rime compared to 3.6±0.098 GPa for Glaze. Furthermore, the results indicate that both the bending strength and effective modulus are insensitive to the ice storage time.

Description

Software Description

Software Language

Github

Keywords

ice, atmospheric, rime, glaze, bending, flexure

DOI

Rights

Attribution 4.0 International

Relationships

Relationships

Supplements

Funder/s

Innovate UK: 113155 Rolls-Royce plc