An ice material model for assessment of strain rate, temperature and confining pressure effects using finite element method
Artikel i vetenskaplig tidskrift, 2018

This paper addresses an investigation of ice constitutive laws modeling with strain rate, temperature and confining pressure effects of interest in modeling ice compressive behaviour. For the proposed phenomenological model consisting of elastic, delayed elastic and viscous components, strain rate is taken into account by introducing a viscous term based on Glen’s law. The effects of temperature and confining pressure are also included in the ice model. With the consideration that the viscous term and delayed elastic term are affected by temperature, the pressure hardening and pressure softening phenomena are embedded in the constitutive model. The proposed three-dimensional constitutive model is implemented in explicit LS-DYNA as a user-defined material model, and the numerical simulations of constant strain rate and creep experiments are conducted to verify the proposed ice material model. Ice strength and strain-time curves at different strain rates, temperatures and confining pressures are obtained and compared with experimental results.

Ice constitutive material model

strain rate effect

confining pressure

finite element method

temperature

Författare

Ying Xu

Shanghai Jiao Tong University

Zhiqiang Hu

Newcastle University

Jonas Ringsberg

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Gang Chen

Shanghai Jiao Tong University

Xiangyin Meng

Newcastle University

Ships and Offshore Structures

1744-5302 (ISSN) 1754-212X (eISSN)

1-12

Chalmers styrkeområde Transport – finansiering 2018

Chalmers, 2018-01-01 -- 2018-12-31.

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Materialvetenskap

Ämneskategorier

Teknisk mekanik

Annan materialteknik

Metallurgi och metalliska material

Fundament

Grundläggande vetenskaper

DOI

10.1080/17445302.2018.1553134

Mer information

Senast uppdaterat

2019-01-28