Thickness-independent fracture in columnar freshwater ice : An experimental study

I. E. Gharamti; W. Ahmad; O. Puolakka; J. Tuhkuri

doi:10.1016/j.engfracmech.2024.109906

Thickness-independent fracture in columnar freshwater ice : An experimental study

I. E. Gharamti^*, W. Ahmad, O. Puolakka, J. Tuhkuri

^*Tämän työn vastaava kirjoittaja

VTT Technical Research Centre of Finland Ltd.

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

4 Sitaatiot (Scopus)

44 Lataukset (Pure)

Abstrakti

Experiments on columnar freshwater ice indicated that there is no detected effect of the ice thickness on the fracture behavior of columnar freshwater S2 ice. The influence of thickness was studied using large laboratory-grown samples. Two series of Mode I fracture tests were carried out using deeply edge-cracked 3-by-6-metre rectangular plates loaded monotonically at 1…100 μm/s. The ice was warm (above −0.5 °C), and the ice thickness varied in the range 10–40 cm. This paper analyzes the second series of tests and compares the results with the first series tests; the analysis of the latter was published in Gharamti et al. (2021) [2,3,4]. The viscoelastic fictitious crack model (VFCM) was applied to analyze the data and calculate the crack profile, fracture energy and the process zone size. The thickness affected only and linearly the values of the measured loads with no influence on the fracture properties: the apparent fracture toughness, fracture energy, crack opening displacements, notch sensitivity and process zone size.

Alkuperäiskieli	Englanti
Artikkeli	109906
Sivumäärä	8
Julkaisu	Engineering Fracture Mechanics
Vuosikerta	298
DOI - pysyväislinkit	https://doi.org/10.1016/j.engfracmech.2024.109906
Tila	Julkaistu - 8 maalisk. 2024
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229 . The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588 ]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu Päivärinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing. This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229. The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu Päivärinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing.

Pääsy asiakirjaan

10.1016/j.engfracmech.2024.109906Lisenssi: CC BY

1-s2.0-S0013794424000699-mainFinal published version, 1,18 MBLisenssi: CC BY

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1 Päättynyt
1 Aktiivinen

ICEFRACTURE: FRACTURE OF ICE
Tuhkuri, J. (Vastuullinen johtaja), Oksala, S. (Projektin jäsen), Ahmad, W. (Projektin jäsen) & Devi, S. (Projektin jäsen)
01/09/2022 → 31/08/2026
Projekti: RCF Academy Project
WindySea: Modelling engine to design, assess environmental impacts, and operate wind farms for ice-covered waters
Polojärvi, A. (Vastuullinen johtaja), Petry, A. (Projektin jäsen), Prasanna, M. (Projektin jäsen), Owen, C. (Projektin jäsen), Stübbe, M. (Projektin jäsen), Lehto, P. (Projektin jäsen), Muchow, M. (Projektin jäsen) & Puolakka, O. (Projektin jäsen)
EU The Recovery and Resilience Facility (RRF)
01/01/2022 → 31/12/2024
Projekti: RCF Academy Project targeted call

Aalto-yliopiston jäätutkimusallas
Puolakka, O. (Manager)
Insinööritieteiden korkeakoulu
Laitteistot/tilat: Facility
Science-IT
Hakala, M. (Manager)
Perustieteiden korkeakoulu
Laitteistot/tilat: Facility

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title = "Thickness-independent fracture in columnar freshwater ice : An experimental study",

abstract = "Experiments on columnar freshwater ice indicated that there is no detected effect of the ice thickness on the fracture behavior of columnar freshwater S2 ice. The influence of thickness was studied using large laboratory-grown samples. Two series of Mode I fracture tests were carried out using deeply edge-cracked 3-by-6-metre rectangular plates loaded monotonically at 1…100 μm/s. The ice was warm (above −0.5 °C), and the ice thickness varied in the range 10–40 cm. This paper analyzes the second series of tests and compares the results with the first series tests; the analysis of the latter was published in Gharamti et al. (2021) [2,3,4]. The viscoelastic fictitious crack model (VFCM) was applied to analyze the data and calculate the crack profile, fracture energy and the process zone size. The thickness affected only and linearly the values of the measured loads with no influence on the fracture properties: the apparent fracture toughness, fracture energy, crack opening displacements, notch sensitivity and process zone size.",

keywords = "Fracture, Freshwater ice, Rate effect, Thickness",

author = "Gharamti, \{I. E.\} and W. Ahmad and O. Puolakka and J. Tuhkuri",

note = "Funding Information: This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229 . The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588 ]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu P{\"a}iv{\"a}rinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing. Funding Information: This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229. The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu P{\"a}iv{\"a}rinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing. Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2024",

month = mar,

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doi = "10.1016/j.engfracmech.2024.109906",

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T1 - Thickness-independent fracture in columnar freshwater ice : An experimental study

AU - Gharamti, I. E.

AU - Ahmad, W.

AU - Puolakka, O.

AU - Tuhkuri, J.

N1 - Funding Information: This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229 . The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588 ]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu Päivärinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing. Funding Information: This work was funded by the Academy of Finland through the project Ice Fracture, decision number 351229. The first author (I.E.G) was supported by the Academy of Finland also through the WindySea project (Special 170 RRF funding for research on key areas of green and digital transition [grant number 348588]). This financial support is gratefully acknowledged. The authors would also like to thank Teemu Päivärinta and Lasse Turja for setup design preparation, Kari Hujanen for actuator manufacturing, and Pauli Lehto for comments on the hydraulics and actuator manufacturing. Publisher Copyright: © 2024 The Author(s)

PY - 2024/3/8

Y1 - 2024/3/8

N2 - Experiments on columnar freshwater ice indicated that there is no detected effect of the ice thickness on the fracture behavior of columnar freshwater S2 ice. The influence of thickness was studied using large laboratory-grown samples. Two series of Mode I fracture tests were carried out using deeply edge-cracked 3-by-6-metre rectangular plates loaded monotonically at 1…100 μm/s. The ice was warm (above −0.5 °C), and the ice thickness varied in the range 10–40 cm. This paper analyzes the second series of tests and compares the results with the first series tests; the analysis of the latter was published in Gharamti et al. (2021) [2,3,4]. The viscoelastic fictitious crack model (VFCM) was applied to analyze the data and calculate the crack profile, fracture energy and the process zone size. The thickness affected only and linearly the values of the measured loads with no influence on the fracture properties: the apparent fracture toughness, fracture energy, crack opening displacements, notch sensitivity and process zone size.

AB - Experiments on columnar freshwater ice indicated that there is no detected effect of the ice thickness on the fracture behavior of columnar freshwater S2 ice. The influence of thickness was studied using large laboratory-grown samples. Two series of Mode I fracture tests were carried out using deeply edge-cracked 3-by-6-metre rectangular plates loaded monotonically at 1…100 μm/s. The ice was warm (above −0.5 °C), and the ice thickness varied in the range 10–40 cm. This paper analyzes the second series of tests and compares the results with the first series tests; the analysis of the latter was published in Gharamti et al. (2021) [2,3,4]. The viscoelastic fictitious crack model (VFCM) was applied to analyze the data and calculate the crack profile, fracture energy and the process zone size. The thickness affected only and linearly the values of the measured loads with no influence on the fracture properties: the apparent fracture toughness, fracture energy, crack opening displacements, notch sensitivity and process zone size.

KW - Fracture

KW - Freshwater ice

KW - Rate effect

KW - Thickness

UR - https://www.scopus.com/pages/publications/85184500430

U2 - 10.1016/j.engfracmech.2024.109906

DO - 10.1016/j.engfracmech.2024.109906

M3 - Article

AN - SCOPUS:85184500430

SN - 0013-7944

VL - 298

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

M1 - 109906

ER -

Thickness-independent fracture in columnar freshwater ice : An experimental study

Abstrakti

Rahoitus

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

ICEFRACTURE: FRACTURE OF ICE

WindySea: Modelling engine to design, assess environmental impacts, and operate wind farms for ice-covered waters

Laitteet

Aalto-yliopiston jäätutkimusallas

Science-IT

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