Journal of Cold Regions Engineering

This work evaluated the performance attributes and impacts of several alternative deicers along with traditional chloride-based deicers. Four Strategic Highway Research Program tests were conducted to evaluate the ice melting, ice penetration, and ice undercutting capabilities of the deicers of interest, and also their impact to the freeze-thaw resistance of portland cement concrete. Three additional novel methods were utilized to assess the friction coefficient of deiced concrete surfaces, thermal properties of the deicers, and corrosion effects of deicers to metals. The laboratory data shed light on the complexity and challenges in evaluating various deicers. To facilitate scientifically sound decision-making, the writers propose a systematic approach to integrate the information available regarding various aspects of deicers, and to incorporate agency priorities, which is expected to aid agencies in selecting or formulating their snow and ice control chemicals.

To investigate the effect of the presence of surrounding ice sheet on the stochastic response of offshore wind turbines subjected to random seismic excitation, this research uses a three-dimensional, numerical, finite-element model that includes viscous boundaries. The model of the ice–seawater–offshore wind turbine–soil interaction system uses the Lagrangian fluid (displacement-based) and solid-quadrilateral-isoparametric finite elements. Random seismic excitation from a filtered white-noise model and applied to each support point of the three-dimensional finite-element model of the coupled interaction system provides the experimental environment. A parametric study examines the effects of both the presence of and variation in mechanical and geometric properties of the surrounding ice sheet on the stochastic response of offshore wind turbines. The investigation also includes the effect of the wind turbine’s wall thickness in relation to the ice sheet on the stochastic seismic response of the coupled interaction system.