Experimental investigation of an accidental ice impact on an aluminium high speed craft

Start Page
697
End Page
704
Citation
Progress in the Analysis and Design of Marine Structures: 697-704 (2017-05)
Contribution to Conference
6th International Conference on Marine Structures, MARSTRUCT 2017 
Publisher DOI
10.1201/9781315157368-80
Scopus ID
2-s2.0-85034959046
High speed vessels are constructed according to the high speed craft codes. These codes enable very light ship structures, which are necessary for effective operation of fast vessels without taking ice loads into account. In the given case a conventional aluminium structure of a high speed ferry designed according to the DNV-GL HSLC code for an operation in Stockholm is investigated. For the determination of the consequences of an impact between a high speed craft and a single ice floe an analytical impact model and a series of drop tests with conical ice specimens against full-scale aluminium panels of the given vessel are presented. Plastic deformations are only observed at the stiffeners and the outer shell. The structural integrity is still given after the tests. The influence of the structural stiffness as well as the limited change in the maximum force at different energy levels during the impact is discussed.