A Mark III panel subjected to a flip-through wave impact: results from the Sloshel project
Author L. Brosset, W. Lafeber, H. Bogaert, M. Marhem, P. Carden, J. Maguire
Title A Mark III panel subjected to a flip-through wave impact: results from the Sloshel project
Conference/Journal ISOPE 21th International Offshore and Polar Engineering Conference, Maui, USA
Paper no. FD02
Month June
Year 2011

Abstract
Within the Sloshel Joint Industrial Project, a new full scale wave impact test campaign has been carried out in April 2010. Unidirectional focused waves were generated in a flume in order to impact a rigid wall in which an instrumented Mark III LNG containment system panel had been embedded. The wall was entirely covered with the Mark III corrugated membrane in the same way as on board a LNG carrier.
During one of the last tests of the campaign a flip-through type of impact was generated and very high local pressures were measured. The horizontal small corrugations of the membrane were significantly deformed but no permanent deformation of the foam was observed by initial visual inspection. After removing the Mark III panel and cutting it into small blocks, no discernible cracking, no discernible permanent deformation and no discernible change of the initial properties were observed.
This paper describes the main lessons obtained from this flip-through impact, through measurements related to the hydrodynamic loads, and through the structural response of the different components of the Mark III panel. with respect to a quasi-static interaction.

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