Compressive strength of atmospheric ice

Kermani, Majid; Farzaneh, M.; Gagnon, R.

doi:10.1016/j.coldregions.2007.05.003

Cited by 34 publications

(11 citation statements)

References 12 publications

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“…A similar trend could be observed for the uniaxial compression strength which was found to be lower than reported by the only available source in literature for winter Antarctic sea ice, albeit land-fast, by Urabe and Inoue (1988). For pancake ice, the uniaxial compression strength linearly increased with depth as opposed to the consolidated pack ice which decreased with depth as typically reported in literature (Han et al, 2015;Kermani et al, 2007). A distinct directional dependency of the elastic moduli in vertical and horizontal directions, respectively, has been found, in particular for consolidated pack ice.…”

Section: Discussionsupporting

confidence: 87%

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Physical and mechanical properties of winter first-year ice in the Antarctic marginal ice zone along the Good Hope Line

Skatulla

Audh

Cook

et al. 2021

Preprint

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Abstract. As part of the 2019 Southern oCean seAsonal Experiment (SCALE) Winter Cruise of the South African icebreaker SA Agulhas II first-year ice was sampled at the advancing outer edge of the Antarctic marginal ice zone along a 150 km-Good Hope Line transect. Ice cores were extracted from four solitary pancake ice floes of 1.83–2.95 m diameter and 0.37–0.45 m thickness as well as a 12 × 4 m2 pancake ice floe of 0.31–0.76 m thickness part of a larger consolidated pack ice domain. The ice cores were subsequently analyzed for temperature, salinity, texture, anisotropic elastic properties and compressive strength. All ice cores from both, solitary pancake ice floes and consolidated pack ice, exhibited predominantly granular textures. The vertical distributions of salinity, brine volume and mechanical properties were significantly different for the two ice types. High salinity values of 12.6 ± 4.9 PSU were found at the topmost layer of the solitary pancake ice floes but not for the consolidated pack ice. The uniaxial compressive strength for pancake ice and consolidated pack ice were determined as 2.3 ± 0.5 MPa and 4.1 ± 0.9 MPa, respectively. The Young’s and shear moduli in longitudinal core direction of solitary pancake ice were obtained as 3.7 ± 2.0 GPa and 1.3 ± 0.7 GPa, and for consolidated pack ice as 6.4 ± 1.6 GPa and 2.3 ± 0.6 GPa, respectively. Comparing Young’s and shear moduli measured in longitudinal and transverse core directions, a clear directional dependency was found, in particular for the consolidated pack ice.

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Section: Discussionsupporting

confidence: 87%

“…It is known from literature, that a decrease in ice temperature results in a higher compressive strength (Han et al, 2015;Kermani et al, 2007). This linkage can be confirmed for the tested consolidated pack ice considering the depth-evolution of both, the increasing temperature illustrated in Fig.…”

Section: Compressive Strengthsupporting

confidence: 81%

Physical and mechanical properties of winter first-year ice in the Antarctic marginal ice zone along the Good Hope Line

Skatulla

Audh

Cook

et al. 2021

Preprint

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“…One category deals with the problem of ice failure under different loading conditions. For example, Kermani et al [2] have recently carried out an experimental work in order to measure the compressive strength of atmospheric ice at different strain rates and temperatures. The other category concems the deformation of ice, about which many studies have been carried out.…”

Section: Introductionmentioning

confidence: 99%

Contribution of Primary Creep in Modeling the Mechanical Behavior of Polycrystalline Ice

Aryanpour¹,

Farzaneh

2013

Journal of Offshore Mechanics and Arctic Engineering

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In most of the models proposed for deformation of ice, in addition to instantaneous elastic and viscoelastic parts, a viscoplastic part is also considered. An expression used for material secondary creep is usually employed to describe the viscoplastic component. In this study, however, another viscoplastic deformation of primary creep type is also considered in addition to the secondary creep. Therefore the permanent contribution of deformation is suggested to consist of primary and secondary creep parts. The existence of the primary creep contribution is investigated and characterized by using experimental results reported in the literature. The identified primary creep contribution is then validated by other available experimental results. Finally, the significance of primary creep in the inelastic behavior will be discussed.

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“…Over the last decades several experiments have been performed in order to understand the ice load on the structures. Such experiments fall into two categories: large-scale tests to quantify realistic ice loads [1,2,3,4], and medium or small-scale experiments to understand the material behavior of ice under compression [5,6,7,8]. The loads observed in the small-scale experiments can not be scaled straightforwardly to predict the ice loads on offshore structures [9].…”

Section: Introductionmentioning

confidence: 99%

A Lattice Model to Simulate Ice-Structure Interaction

Dorival

Metrikine

Simone

2008

Volume 3: Pipeline and Riser Technology; Ocean Space Utilization

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The interaction between ice sheets and offshore structures is of key importance in the design of offshore platforms in the Arctic. Unfortunately, due to the complexity of ice material the use of small-scale experiments is problematic if one aims at drawing some conclusions about the forces exerted on large-scale structures such as oil rigs. As a preliminary work this paper proposes a discrete numerical model to investigate the interaction between an ice sheet and a rigid structure. The behavior of ice is modelled by a two dimensional lattice model, in which inhomogeneity and possible failure of ice are incorporated. According to the numerical results such a model seems able to capture the main trends involved in ice sheets cracking. This is an essential step towards predicting interaction forces between ice and structure.

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Compressive strength of atmospheric ice

Cited by 34 publications

References 12 publications

Physical and mechanical properties of winter first-year ice in the Antarctic marginal ice zone along the Good Hope Line

Physical and mechanical properties of winter first-year ice in the Antarctic marginal ice zone along the Good Hope Line

Contribution of Primary Creep in Modeling the Mechanical Behavior of Polycrystalline Ice

A Lattice Model to Simulate Ice-Structure Interaction

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