Under the background of polar resource development and shipping demand, underwater explosion ice-breaking technology is of great value to improve the operation capacity of icebreakers. In the existing research, little consideration is given to the actual different glacier forms in nature, such as polar underwater glaciers, ice ridges, and ice nails. Here, the damage mechanism of underwater explosion bubble load on different forms of ice is studied by coupled Eulerian–Lagrangian (CEL) numerical simulation and experiments of spark bubble generation. We used an underwater spark generator to generate bubbles, and the interaction and explosion results of bubbles on a horizontal ice plate, a perforated ice plate, and a vertical ice plate were recorded and analyzed. The CEL model is in good agreement with the experiment, and the error of bubble parameters is less than 10%. Under the horizontal ice plate, with the increase in the distance between the two bubbles, the bubble interaction is weakened, and the displacement and damage range of the ice plate are expanded. The increase in the hole size of the perforated ice plate will aggravate the crack propagation on the ice surface and reduce the structural strength. The damage degree of the vertical ice plate is enhanced by the decrease in the distance between the two bubbles, and the bubble fusion can improve the ice-breaking efficiency. Here, we provide a basis for parameter optimization for polar ice-breaking exploration projects.
Zhang et al. (Thu,) studied this question.