An analysis of the viscoelastic fracture toughness and crack growth in ice

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“…Although unusual, the toughness increases with decreasing temperature. Similar behavior has been noted before [6,10]…”

Section: Resultssupporting

confidence: 90%

A Micromechanical View of the Fracture Toughness of Ice

Nixon

Schulson

1987

J. Phys. Colloques

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Dynamical Fracture in Ice I_h as Modeled by TIP4P/Ice and mW Water Potentials

Moreira

2020

Annalen der Physik

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Fracture in ice Ih is simulated with molecular dynamics utilizing two potential fields, TIP4P/Ice and mW, and in different temperature conditions. The simulations produce propagating crack speeds over a large range of fracture energies. Terminal crack speed simulated with TIP4P/Ice potential can reach more than 200 m/s befitting experimental results. On the other hand, for mW potential, crack speed is around 5 m/s. The TIP4P/ice model suggests a brittle ice while mW potential describes a much more ductile material. The computational simulations are designed to permit direct comparison with experiments which can be performed in the hereafter. This comparison could provide a sensitive test to interatomic potentials.

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Thermal Stresses From Large Volumetric Expansion During Freezing of Biomaterials

Shi

Datta

Mukherjee³

1998

Journal of Biomechanical Engineering

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Thermal stresses were studied in freezing of biomaterials containing significant amounts of water. An apparent specific heat formulation of the energy equation and a viscoelastic model for the mechanics problem were used to analyze the transient axi-symmetric freezing of a long cylinder. Viscoelastic properties were measured in an Instron machine. Results show that, before phase change occurs at any location, both radial and circumferential stresses are tensile and keep increasing until phase change begins. The maximum principal tensile stress during phase change increases with a decrease in boundary temperature (faster cooling). This is consistent with experimentally observed fractures at a lower boundary temperature. Large volumetric expansion during water to ice transformation was shown to be the primary contributor to large stress development. For very rapid freezing, relaxation may not be significant, and an elastic model may be sufficient.

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An analysis of the viscoelastic fracture toughness and crack growth in ice

Cited by 3 publications

References 6 publications

A Micromechanical View of the Fracture Toughness of Ice

A Micromechanical View of the Fracture Toughness of Ice

Dynamical Fracture in Ice I_h as Modeled by TIP4P/Ice and mW Water Potentials

Thermal Stresses From Large Volumetric Expansion During Freezing of Biomaterials

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An analysis of the viscoelastic fracture toughness and crack growth in ice

Cited by 3 publications

References 6 publications

A Micromechanical View of the Fracture Toughness of Ice

A Micromechanical View of the Fracture Toughness of Ice

Dynamical Fracture in Ice Ih as Modeled by TIP4P/Ice and mW Water Potentials

Thermal Stresses From Large Volumetric Expansion During Freezing of Biomaterials

Contact Info

Product

Resources

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Dynamical Fracture in Ice I_h as Modeled by TIP4P/Ice and mW Water Potentials