Effective Pressures Measured During Indentation Tests in Freshwater Ice
Indentation tests were conducted by pushing flat, vertical indentors of two different widths (50 and 100 mm) against the edges of floating, freshwater ice at different velocities (0.6-150...

Modeling of Floating Ice Sheets
Rectangular finite elements are studied and their suitability to investigate behavior of floating ice sheets is discussed. A simple model of the plate on one parameter, Wrinkler type,...

Application of Ice/Structure Interaction Concepts to a Real Time Ice Risk Assessment Computer Model
The successful and safe operation of an Arctic offshore exploration structure greatly depends on the implementation of alerts procedures. In order to assess alerts levels, a computer model...

Wang's Equation for Ice Forces From a Pressure Ridge
Yung-shih (Tony) Wang has presented an equation for the breaking loads from a multiyear pressure ridge on a conical structure. The three distances that define the position of the plastic...

New Hydrologic Instrumentation in the U.S. Geological Survey
New water-level sensing and recording instrumentation is being used by the U.S. Geological Survey for monitoring water levels, stream velocities, and water-quality characteristics. Several...

The USACRREL Underwater Frazil Ice Detector
A modified underwater frazil ice detector has been developed at USACRREL. This detector, which operates remotely, can automatically start deicing procedures and alert operators to the...

Atomistic Simulation and Visualization of Thermal Disorder in a Crystalline Ice
The process of thermal disorder in crystalline ice has been simulated using a molecular dynamics model. The thermal disorder is induced by raising the temperature of the system. The molecular...

Micro-Damage Process Model for Polycrystalline Ice
This paper presents a micro-damage process model for freshwater polycrystalline ice deforming at the high end of the ductile-to-brittle transitional domain of strain rated. Damage is attributed...

Crack Growth Stability in Ice
The mechanics of stable, time dependent crack growth as a function of geometry and increasing crack length in saline an freshwater columnar ice are examined in this paper. Experimental...

The Weathering of Spilled Crude Oil in Coastal Water Environment
A research project was conducted at the Technical Research Centre of Finland (VTT) in order to study the long-term behaviour of spilled crude oil in the brackish water under cold and icy...

Neashore Sediment Transport by Slush/Brash Ice in Southern Lake Michigan
Bands of mobile ice are common features in the Great Lakes nearshore zone during the winter months. Samples were collected during December, 1989 to determine the sediment content in the...

Erosion and Accretion Along the Arctic Coast of Alaska: The Influence of Ice and Climate
Coastline comparison on 1951 and 1981 charts to determine erosion and accretion showed that ocean-facing coastal bluffs were retreating while deltas were rapidly expanding. Where the coast...

Double Radial Gates for the Brunau Ice-Retention Weir in Switzerland
During the springtime thaw, the River Sihl, which flows from the south into the city of Zurich, Switzerland, carries large quantities of ice flow. In 1968, to protect the footings of a...

Gas Transfer Measurements on an Ice-Covered River
Wasteload allocation for existing and proposed pulp mills in the Athabasca River Basin of northern Alberta, Canada, necessitated measurement of the atmospheric reaeration rate, K2,...

Ice Engineering Design for Marinas
Northern marinas must be designed for the effects of ice and winter conditions. Marina sites, although themselves specific, experience forces and actions that can be predicted and generalized...

Visco-elasticity and the Compressive Failure of Polycrystalline Ice
The analysis of the visco-elasticity of polycrystalline ice is addressed. Experimental results on isotropic and anisotropic polycrystalline ice are presented, which indicate that intracrystalline...

Spray and Ice Measurement Instrumentation for Ships
Bow slamming is the primary water delivery mechanism for ship superstructure icing. Spray flux is largely dependent upon hull dynamics, and cannot be computed numerically with current...

Cold Regions Engineering
This proceedings consists of papers presented at the Cold Regions Engineering Specialty Conference held in West Lebanon, New Hampshire from February 26-28, 1991. The papers cover nine...

Loads and Vibration Induced by Compressive Failure of Ice
In earlier work, attention was focussed on the narrow length of crushed ice adjacent to the structure, which was seen as the seat of vibration associated with ice crushing. Crushed ice...

Test Results on Reinforced and Prestressed Ice

 

 

 

 

Return to search