Infrared thermal wave detection and compression experiment of accreted ice

Abstract

Icing environment incurs great inconvenience to production and life. In order to study the physical characteristics of accreted ice, an experimental platform for ice detection is performed in this paper, and the influence of icing parameters is analyzed by using active infrared thermal wave nondestructive detection system and universal mechnical testing machine, we analyze the influence of icing parameters are icing height, icing diameter and freezing time. With the help of the logarithmic function of temperature difference and time in infrared thermal wave experiment, the relationship between the inflection point of stress-strain curve in compression strength tests and icing parameters is discussed. Results show that larger icing height, smaller icing diameter and longer freezing time will delay the turning point of logarithmic temperature difference curve with time; whereas larger icing height, appropriate freezing time and larger icing diameter will enhance the compressive strength of accreted ice. In addition, the strain level is also one of the factors closely related to the compressive strength. These conclusions lay the foundation for further research on the physical characteristics of the infrared detection of ice.