Author(s): R. S. Taylor; R. M. W. Frederking; I. J. Jordaan
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Abstract: In determining design loads for structures in ice, understanding and modeling the nature of high pressure zones (hpzs) during compressive failure is key. Medium-scale field indentation tests carried out by the Japan Ocean Industries Association (JOIA) provide pressure data at a resolution previously not available. Measurement data were collected for global and local segmented panel loads using conventional load cells; high resolution interfacial pressures were measured using Tekscan tactile pressure sensors. The aim of this paper is to enhance understanding of the tactile sensor data, how failure processes may be interpreted from these data and guide future efforts to identify and characterize individual hpzs. Qualitative and quantitative descriptions of local failure events have been provided. Analysis results, along with a discussion of implications for design load methodology are included.
Year: 2008