Local Zooming Analysis of LNGC CCS under Sloshing Impact Loading

Every effort was tried to demonstrate the procedure of the structural safety assessment of MARK III membrane type Cargo Containment System (CCS) with corrugated membrane under sloshing impact loading using local zooming analysis technique of LS-DYNA code in the last study. Big discrepancy was found in the pressure responses between local zooming analysis and full-scale 3D one layer global sloshing simulation. In this study, wet drop and shooting water impact analyses of Mark III membrane-type CCS with flat membrane were performed together with full-scale global sloshing ones with 70% filling level for the investigation of their big discrepancy, considering diverse constraint parameters of coupling algorithm and mesh size.