Numerical modelling of ice

Numerical modelling of ice: Mechanical behaviour of ice under high strain rates

Ma, Dayou (Northwestern Polytechnical University; Politecnico di Milano)
Li, X. (TU Delft Structural Integrity & Composites; Northwestern Polytechnical University)
Manes, Andrea (Politecnico di Milano)
Li, Yulong (Northwestern Polytechnical University)

2023

Ice impact is quite common and may become critical especially if it involves the transportation sector. Simulation tools may help in the structural design phase to increase the ability to withstand this kind of impact and/or to analyse the effect under extreme weather conditions. Such tools require an accurate description of the mechanical behaviour and therefore a detailed investigation about the dynamic mechanical properties of ice is of great interest. In the present work, material characterizations of ice, including tensile and compressive tests, were carried out under different strain rates. Two different material models (i.e., the modified Johnson-Cook model and Johnson-Holmquist II model) were calibrated. Then, impact tests using ice as a projectile with aluminium panels as a target were conducted to validate the material models of ice under impact loading. Furthermore, the replication effect of ice projectiles was investigated under different impact energies based on the mechanical responses and damage phenomena of ice for both models. Results showed that while both models are able to provide reliable predictions of the impact behaviour of ice projectiles, the Johnson-Holmquist II model presents a better performance as impact energy increases.

Ballistic impact
Damage phenomena
Ice projectile
Johnson-Cook model
Johnson-Holmquist II model

http://resolver.tudelft.nl/uuid:3606e6c9-110e-47cb-b776-fd7b2e545728

https://doi.org/10.1016/j.ijimpeng.2022.104375

2023-07-01

0734-743X

International Journal of Impact Engineering, 172

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Dayou Ma, X. Li, Andrea Manes, Yulong Li