STUDY OF DEFORMATION PROCESSES IN PHYSICAL MODELS WITH TECHNOLOGICAL CAVITIES UNDER QUASI-STATIC LOADING
V. I. Vostrikov, S. Yu. Gavrilov, P. A. Tsoi
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Физическая модель, стенд, квазистатическое нагружение, деформация, тепловое поле, Physical model, test bench, quasi-static loading, deformation, thermal field
Abstract
Physical modeling was carried out to study deformation processes on plexiglass models with cylindrical cavity under quasistatic loading. Thermal and strain fields were measured during the experiments. The thermal field analysis revealed four regions in the model: two of them are located to the left and to the right of the cavity (those receiving the main load), and two are above and below the cavity. The high temperature values recorded on the lateral surfaces of the cavity indicated their significant deformation. When the applied load was taken off, the model temperature decreased sharply (due to reverse deformation) to the extent that it became lower than the ambient temperature, and then gradually increased.
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