Huy-Hong-Quan Dinh, D. Giannakis, J. Slawinska, G. Stadler
{"title":"Phase-field models of floe fracture in sea ice","authors":"Huy-Hong-Quan Dinh, D. Giannakis, J. Slawinska, G. Stadler","doi":"10.5194/tc-17-3883-2023","DOIUrl":null,"url":null,"abstract":"Abstract. We develop a phase-field model of brittle fracture to model fracture\nin sea ice floes. Phase fields allow for a variational formulation of\nfracture by using an energy functional that combines a linear elastic\nenergy with a term modeling the energetic cost of fracture. We study\nthe fracture strength of ice floes with stochastic thickness\nvariations under boundary forcings or displacements. Our approach models refrozen cracks or other linear\nice impurities with stochastic\nmodels for thickness profiles. We find that the orientation of thickness variations is an important factor for the strength of ice\nfloes, and we study the distribution of critical stresses leading to\nfracture. Potential applications to discrete element method (DEM) simulations and field data from the ICEX 2018 campaign are discussed.\n","PeriodicalId":56315,"journal":{"name":"Cryosphere","volume":" ","pages":""},"PeriodicalIF":4.4000,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cryosphere","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.5194/tc-17-3883-2023","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOGRAPHY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract. We develop a phase-field model of brittle fracture to model fracture
in sea ice floes. Phase fields allow for a variational formulation of
fracture by using an energy functional that combines a linear elastic
energy with a term modeling the energetic cost of fracture. We study
the fracture strength of ice floes with stochastic thickness
variations under boundary forcings or displacements. Our approach models refrozen cracks or other linear
ice impurities with stochastic
models for thickness profiles. We find that the orientation of thickness variations is an important factor for the strength of ice
floes, and we study the distribution of critical stresses leading to
fracture. Potential applications to discrete element method (DEM) simulations and field data from the ICEX 2018 campaign are discussed.
期刊介绍：
The Cryosphere (TC) is a not-for-profit international scientific journal dedicated to the publication and discussion of research articles, short communications, and review papers on all aspects of frozen water and ground on Earth and on other planetary bodies.
The main subject areas are the following:
ice sheets and glaciers;
planetary ice bodies;
permafrost and seasonally frozen ground;
seasonal snow cover;
sea ice;
river and lake ice;
remote sensing, numerical modelling, in situ and laboratory studies of the above and including studies of the interaction of the cryosphere with the rest of the climate system.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
