Abstract
Ice accretion can cause problems on polar ships, ocean platforms, and in other marine industries. It is important to understand the interface debonding behavior between ice and the surface of equipment. In this work, we created a mechanical model to analyze the interface debonding behavior between a square-based ice cuboid and an elastic coating base, using contact mechanics and fracture mechanics. Three-dimensional (3D) finite element (FE) simulation was used to simulate the interface debonding for normal and shear separation. A bilinear cohesive zone model (CZM) was used to simulate the interface between the ice cuboid and the elastic coating. We investigated the effect of the elastic modulus E of an elastic film on the critical detachment force Fc for normal and shear separation. The results showed that Fc increases with an increase of the elastic modulus of the elastic film. When E exceeds a certain level, Fc achieves a constant value and then remains stable. Finally, a series of epoxy/polydimethylsiloxane (PDMS) interpenetrating polymer-network (IPN) gel coatings with different elastic moduli were prepared. The ice tensile and shear adhesion strengths (σice and τice) of the coatings were measured. The results were roughly consistent with the results of the numerical simulation when E < 1 MPa.
Highlights
IntroductionNew shipping routes open in the polar regions. In these regions, sea spray icing or atmospheric icing cause economic as well as safety problems, especially on polar ships and ocean platforms [1,2]
As the climate warms, new shipping routes open in the polar regions
Inspired by the mechanics of fracture, researchers have been interested in soft materials with a low elastic modulus for ice-phobic application in recent years [5,6,7,8,9]
Summary
New shipping routes open in the polar regions. In these regions, sea spray icing or atmospheric icing cause economic as well as safety problems, especially on polar ships and ocean platforms [1,2]. Inspired by the mechanics of fracture, researchers have been interested in soft materials with a low elastic modulus for ice-phobic application in recent years [5,6,7,8,9]. Based on Griffith’s energy criterion, Kendall, [10] decades ago, derived the critical detachment force Fc required to separate a rigid flat cylindrical punch from an elastic film for normal separation. It is distributed under the terms and conditions of the Creative Commons
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