Yield and failure envelope for ice under multiaxial compressive stresses

Nadreau, J.-P.; Michel, B.

doi:10.1016/0165-232x(86)90009-1

Cited by 33 publications

(21 citation statements)

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“…This work is part of a wider study overviewed by Murrell and others (1991) and ice triaxial fracture has also been specifically investigated by Durham and others (1983). Other triaxial studies have concentrated mainly on ductile-type flow in Journal oJ Glaciology confinement Gones, 1982;Cox and Richter-Menge 1986;Nadreau and Michel, 1986), although more recent emphasis has been placed on crack nucleation and damage others, 1989, 1992;Stone and others, 1989).…”

Section: Introductionmentioning

confidence: 99%

Ice triaxial deformation and fracture

Rist¹,

Murrell

1994

J. Glaciol.

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ABSTRACT. An experimental investigation into the mechanical behaviour of polycrystalline ice in triaxial compression has been conducted using conditions generally favourable to brittle fracture and microcracking. Under triaxial stresses at high strain rate, ice failure occurs by abrupt shear fracturing, generally inclined at about 45° to the maximum principal stress. At -20°C, such failure is suppressed by the imposition of a small confining pressure, allowing a transition to ductile-type flow accompanied by distributed microcracking, but at --40°C shear fracture persists under confinement of up to at least 50 MPa. For low confining pressures « 10 MPa), brittle strength is strongly pressure-dependent; above this it is pressure-independent. Evidence is presented that suggests this may reflect a change from a fracture process influenced by friction to fracture initiated by localized yielding. Ductile yield strength is found to be little influenced by confining pressure despite the inhibition of cracking that leads to greatly contrasting observed crack densities. Flow conforms to the well-known power law for ice with Q = 69J mol-1 and n = 4.2 over the temperature range -20° to-45° C. Under these conditions, microcracking in ice appears to remain remarkably stable and non-interacting.

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Section: Introductionmentioning

confidence: 99%

Ice triaxial deformation and fracture

Rist¹,

Murrell

1994

J. Glaciol.

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“…Unlike the latter case, the yield criteria of Tresca and von-Mises are independent of hydrostatic pressure. Tresca's criterion assumes that failure is controlled by the maximum shear stress, which has been identified by Nadreau and Michel (1986) to be relevant to various ice types at very small strain rates and relatively small confining pressures. For higher strain rates and confining pressures, On the basis of the results reported by Jones (1982), Rist and Murrell (1994), Fish et ah (1997), Sunder (1989) and Arakawa (1997), the temperature and strain-rate dependency of ice yield curves are schematically shown in Fig.…”

Section: Yield Envelope For Atmospheric Icementioning

confidence: 99%

“…The fixed parabolic or teardrop curves were proposed by Nadreau and Michel (1986), Jones (1982), Fish et al (1997), and Derradji (2000) as the failure envelope of ice at some ranges of temperature and strain rates. Fish et al (1997) presented their parabolic model on the basis of the formulations of ice parameters like cohesion, friction angle and melting pressure.…”

Section: Introductionmentioning

confidence: 99%

“…Hausler (1983), Nadreau and Michel (1986), Richter-Menge et al (1986), Timco and Frederking (1984), Sinha (1985, Nadreau et al (1991), Rist and Murrell (1994), Gagnon and Gammon (1995), Weiss and Schulson (1995), Fish et al (1997) and others reported the results of a series of confined multiaxial compression tests with various ice types and over a range of loading rates, confinements, and temperatures. They deduced that the confined ice strength could be ten times greater than the uniaxial case.…”

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confidence: 99%

“…Fish et al (1997) fitted a series of parabolic curves for temperature and strain-rate dependency of failure envelopes by using three material parameters: cohesion, friction angle, and melting pressure. On the other hand, Michel and Nadreau (1986), Jones (1982), and Derradji (2000) proposed the teardrop and elliptical functions for pressure dependency of ice failure envelopes in different ranges of temperature and strain rate, mainly in ductile region, see Fig. 2.6b and Fig.…”

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confidence: 99%

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Ice shedding from overhead electrical lines by mechanical breaking :

Eskandarian¹

2005

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The structure and mechanical behavior of ice

Schulson

1999

JOM

265

175

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1983 through a development grant from Mobil Corporation. It was expanded in 1984 through an Army Research Office-URIP, expanded again in 1986 through an Office of Naval Research-URI, and expanded again in 1994 through a second Army Research Office-URIP. The IRL is a materials research facility housed within cold rooms. The laboratory currently consists of ten separate cold rooms, some capable of reaching below -40°C. Situated within are facilities for growing and characterizing ice of different kinds, preparing test specimens, and measuring mechanical and electrical properties.Since icebergs were first proposed as potential aircraft carriers in World War II, Erland M. Schulson research has led to a better understanding of the mechanical behavior of ice. While work remains, especially in relating fracture on the small scale to that on the larger scale and to the appropriate structural features, the groundwork in materials science has been laid. This paper presents an overview of the structure and mechanical behavior of polycrystalline terrestrial ice.

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Yield and failure envelope for ice under multiaxial compressive stresses

Cited by 33 publications

References 3 publications

Ice triaxial deformation and fracture

Ice triaxial deformation and fracture

Ice shedding from overhead electrical lines by mechanical breaking :

The structure and mechanical behavior of ice

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