Author(s): Robert Frederking; Mohamed Sayed
Linked Author(s):
Keywords: No Keywords
Abstract: Stresses were measured on the contact face of a flat indentor during tests carried out at Hobson's Choice Ice Island in 1989. The geometry of the indentor and ice surface produced a plane-strain condition in the ice. From the local stresses, spatial distributions or gradients were determined. The tests showed typical cycling of force-time records. Parts of the cycles have been related to stages of the indentation processes such as crushing, extrusion of crushed ice, and indentor's contact with intact ice. In this paper, stress gradients and shapes of the spatial stress distributions are related to assumed material behaviour and used to identify stages of the ice indentation process.
Year: 1992