PSI - Issue 59

Mykola Holotiuk et al. / Procedia Structural Integrity 59 (2024) 531–537 Holotiuk et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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e

f

Fig. 4. The process of destruction of an ice block by an experimental model of a wedge-shaped destructive element: (a) the beginning of the formation of a stressed state of the sample; (b) crack formation; (c), (d) shearing in the horizontal plane; (e), (f) layered shearing in a vertical plane. The result of determining the depth of the destructive element immersion into the ice with changes in thickness and temperature is graphically presented in Fig 5.

Fig. 5. Dependence of the conventional depth of a wedge-shaped destructive element h у on ice thickness at different temperatures:1- t =-5 ° C; 2- t =-15 ° C; 3- t =-10 ° C.

One can see that the immersion depth of the destructive element changes nonlinearly with the ice thickness, which is explained by the increase in the conditional resistance to detachment of the volume of the destroyed ice. The destruction process is also affected by temperature, which decreases the immersion depth of the destructive wedge-shaped element. However, it should be noted that in the temperature range chosen for the study, the difference in the immersion depth is insignificant. Taking into account the experimental results, we obtained a functional dependence of the immersion depth of the destructive element on the thickness of the ice block