{"title":"Elastic moduli of first-year sea ice calculated from tests with vibrating beams","authors":"Aleksey Marchenko","doi":"10.1016/j.ocemod.2024.102365","DOIUrl":null,"url":null,"abstract":"<div><p>Thirteen laboratory and field tests were carried out with vibrating sea ice beams to study the dependence of the elastic modulus of sea ice in the spectral range from 1 Hz to 500 Hz. Six full-scale tests with floating fixed ends beams were carried out on the land fast ice of the Spitsbergen fjords. For laboratory testing, smaller ice beams were made sea ice of the same fjords. Three tests with columnar fresh lake ice S2 were conducted to validate the method for calculating of the added mass of a floating beam with fixed ends. A 60% increase in the elastic modulus of columnar sea ice S2 was found due to an increase in the frequency of flexural deformations in the range from 10 Hz to 500 Hz. The paper also discusses the influence of ice structure on the elastic modulus.</p></div>","PeriodicalId":19457,"journal":{"name":"Ocean Modelling","volume":"189 ","pages":"Article 102365"},"PeriodicalIF":3.1000,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ocean Modelling","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1463500324000520","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METEOROLOGY & ATMOSPHERIC SCIENCES","Score":null,"Total":0}
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Abstract
Thirteen laboratory and field tests were carried out with vibrating sea ice beams to study the dependence of the elastic modulus of sea ice in the spectral range from 1 Hz to 500 Hz. Six full-scale tests with floating fixed ends beams were carried out on the land fast ice of the Spitsbergen fjords. For laboratory testing, smaller ice beams were made sea ice of the same fjords. Three tests with columnar fresh lake ice S2 were conducted to validate the method for calculating of the added mass of a floating beam with fixed ends. A 60% increase in the elastic modulus of columnar sea ice S2 was found due to an increase in the frequency of flexural deformations in the range from 10 Hz to 500 Hz. The paper also discusses the influence of ice structure on the elastic modulus.
期刊介绍：
The main objective of Ocean Modelling is to provide rapid communication between those interested in ocean modelling, whether through direct observation, or through analytical, numerical or laboratory models, and including interactions between physical and biogeochemical or biological phenomena. Because of the intimate links between ocean and atmosphere, involvement of scientists interested in influences of either medium on the other is welcome. The journal has a wide scope and includes ocean-atmosphere interaction in various forms as well as pure ocean results. In addition to primary peer-reviewed papers, the journal provides review papers, preliminary communications, and discussions.
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