Compressive strength of natural sea ice in horizontal loading

Eila Lehmus; Tuomo Kärnä; Akio Tanabe; Minoru Yoshizawa; Yoshitsugu Ishibashi; William Sackinger

Compressive strength of natural sea ice in horizontal loading

Eila Lehmus, Tuomo Kärnä, Akio Tanabe, Minoru Yoshizawa, Yoshitsugu Ishibashi, William Sackinger

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Samples of natural sea ice obtained from shorefast ice were loaded in compression, in the horizontal direction, both parallel and perpendicular to the C-axis, at a constant strain rate of 10 power in -3 sec power in -1. The average compressive strength parallel to the C-axis was 7.23 MPa at 10°C and 6.77 MPa at -20°C. This is in fair agreement with published values; the smaller strength at 20°C is attributed to the formation of internal microcracks upon thawing of the sodium chloride dihydrate in the brine inclusions, and the annealing of the microcracks prior to testing at the higher temperature.

Original language	English
Title of host publication	The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference
Editors	Jin S. Chung
Place of Publication	Golden
Publisher	International Society of Offshore and Polar Engineers ISOPE
Pages	285-290
Volume	2
ISBN (Print)	978-1-880653-24-1
Publication status	Published - 1996
MoE publication type	A4 Article in a conference publication
Event	6th International Offshore and Polar Engineering Conference (ISOPE) - Los Angeles, United States Duration: 26 May 1996 → 31 May 1996

Conference

Conference	6th International Offshore and Polar Engineering Conference (ISOPE)
Country/Territory	United States
City	Los Angeles
Period	26/05/96 → 31/05/96

Keywords

natural sea ice
compressive strength
horizontal loading
parallel to c-axis
strain rate
laboratory tests

Cite this

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title = "Compressive strength of natural sea ice in horizontal loading",

abstract = "Samples of natural sea ice obtained from shorefast ice were loaded in compression, in the horizontal direction, both parallel and perpendicular to the C-axis, at a constant strain rate of 10 power in -3 sec power in -1. The average compressive strength parallel to the C-axis was 7.23 MPa at 10°C and 6.77 MPa at -20°C. This is in fair agreement with published values; the smaller strength at 20°C is attributed to the formation of internal microcracks upon thawing of the sodium chloride dihydrate in the brine inclusions, and the annealing of the microcracks prior to testing at the higher temperature.",

keywords = "natural sea ice, compressive strength, horizontal loading, parallel to c-axis, strain rate, laboratory tests",

author = "Eila Lehmus and Tuomo K{\"a}rn{\"a} and Akio Tanabe and Minoru Yoshizawa and Yoshitsugu Ishibashi and William Sackinger",

year = "1996",

language = "English",

isbn = "978-1-880653-24-1",

volume = "2",

pages = "285--290",

editor = "Chung, {Jin S.}",

booktitle = "The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference",

publisher = "International Society of Offshore and Polar Engineers ISOPE",

address = "United States",

note = "6th International Offshore and Polar Engineering Conference (ISOPE) ; Conference date: 26-05-1996 Through 31-05-1996",

}

Lehmus, E, Kärnä, T, Tanabe, A, Yoshizawa, M, Ishibashi, Y & Sackinger, W 1996, Compressive strength of natural sea ice in horizontal loading. in JS Chung (ed.), The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference. vol. 2, International Society of Offshore and Polar Engineers ISOPE, Golden, pp. 285-290, 6th International Offshore and Polar Engineering Conference (ISOPE), Los Angeles, California, United States, 26/05/96.

Compressive strength of natural sea ice in horizontal loading. / Lehmus, Eila; Kärnä, Tuomo; Tanabe, Akio et al.
The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference. ed. / Jin S. Chung. Vol. 2 Golden: International Society of Offshore and Polar Engineers ISOPE, 1996. p. 285-290.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Compressive strength of natural sea ice in horizontal loading

AU - Lehmus, Eila

AU - Kärnä, Tuomo

AU - Tanabe, Akio

AU - Yoshizawa, Minoru

AU - Ishibashi, Yoshitsugu

AU - Sackinger, William

PY - 1996

Y1 - 1996

N2 - Samples of natural sea ice obtained from shorefast ice were loaded in compression, in the horizontal direction, both parallel and perpendicular to the C-axis, at a constant strain rate of 10 power in -3 sec power in -1. The average compressive strength parallel to the C-axis was 7.23 MPa at 10°C and 6.77 MPa at -20°C. This is in fair agreement with published values; the smaller strength at 20°C is attributed to the formation of internal microcracks upon thawing of the sodium chloride dihydrate in the brine inclusions, and the annealing of the microcracks prior to testing at the higher temperature.

AB - Samples of natural sea ice obtained from shorefast ice were loaded in compression, in the horizontal direction, both parallel and perpendicular to the C-axis, at a constant strain rate of 10 power in -3 sec power in -1. The average compressive strength parallel to the C-axis was 7.23 MPa at 10°C and 6.77 MPa at -20°C. This is in fair agreement with published values; the smaller strength at 20°C is attributed to the formation of internal microcracks upon thawing of the sodium chloride dihydrate in the brine inclusions, and the annealing of the microcracks prior to testing at the higher temperature.

KW - natural sea ice

KW - compressive strength

KW - horizontal loading

KW - parallel to c-axis

KW - strain rate

KW - laboratory tests

M3 - Conference article in proceedings

SN - 978-1-880653-24-1

VL - 2

SP - 285

EP - 290

BT - The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference

A2 - Chung, Jin S.

PB - International Society of Offshore and Polar Engineers ISOPE

CY - Golden

T2 - 6th International Offshore and Polar Engineering Conference (ISOPE)

Y2 - 26 May 1996 through 31 May 1996

ER -

Compressive strength of natural sea ice in horizontal loading

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Keywords

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