Author(s): Brian Veitch
Linked Author(s):
Keywords: No Keywords
Abstract: Propeller-ice impacts occur frequently on ships that navigate in ice. The impact process raises a strength issue for propeller design. Laboratory experiments designed to investigate the ice failure mechanisms involved in propeller-ice contact are described and the main results are summarized. The experiments consisted of cutting stationary ice blocks with simple planar cutting tools that represented the suction and pressure sides of a propeller blade section. Measurements were made of cutting forces, ice fragment size distributions, and tool-ice contact area patterns. In terms of propeller blades, the tests indicated that contact on the suction side results in mainly crushing failure, and that the extent of contact on the pressure side is limited by cracks that propagate from near the leading edge.
Year: 1994