Application of rigid-plastic theory method in ship-ice collision

Statistical prediction and sensitivity analysis of kinetic rate constants for efficient thermal valorization of plastic waste into combustible oil and gases

“…This difference leads to 60%–74% oil yield production. This trend is attributed to sufficient activation energy and, indeed, the frequency factor, both of which are important in kinetic processes [ 30 ]. The collusion hypothesis states that the reaction will proceed slowly if the activation energy is significantly more than the sum of the molecular kinetic energies.…”

On risk management of shipping system in ice-covered waters: Review, analysis and toolbox based on an eight-year polar project

“…Outside the project, two models which consider the contact between ship and a big ice floe or iceberg are found. Cai et al (2022) presented an approximate analytical plastic damage prediction method for ship plate. Obisesan and Sriramula (2018) proposed an approach considering both collision probability with iceberg and consequence.…”

A New Plastic Design Approach for the Vertical-Side-Plating Thickness of Ice-Strengthened Ships Suffering from Ice Floe Impacts

“…Based on the rigid-plastic assumption, Guo et al [27] established a theoretical model to analyze the plastic mechanical behavior of metal-foam-sandwich beams suffering from repeated impacts by applying the membrane factor method, and they analyzed the effects of the core strength and the face thickness on the deflection response of sandwich beams. Different from the rigid-mass impact in the above research, Cai et al [28] considered the energy dissipation caused by ice failure and derived the formulas of plastic deformation and maximum collision force for ship plates impacted by ice floe by combining the rigid-plastic theory and the energy approach of ice crushing.…”

“…After the impact, the elastic energy absorbed by the ship plate will be released, which will produce a rebound phenomenon. Therefore, according to the energy conservation law, the energy-dissipation equation of the impact between the ice floe and ship plate [28] can be expressed as…”

“…Based on the rigid-plastic theory, which considers the influence of ice damage and the elastic effect of material, the theoretical method of dynamic response of the ship plate under ice floe impact is developed. The deformation mode of the ship plate under ice impact refers to the experimentally obtained deformation mode of the plate under wedge-shaped-ice impact [28]. The plastic-dynamic-response equation for the ship plate is expressed as…”