Experimental testing and numerical simulation of granules as crash absorber for double hull structures

Abstract

\n In the maritime sector, the collision safety is an essential aspect of ship operation. Aiming at further \xadimprovements,\xadthe\xadfilling\xadof\xadthe\xadcavity\xadin\xada\xaddouble\xadhull\xadstructure\xadwith\xadgranular\xadmaterial\xadis\xadinvestigated\xadin\xadthis\xad \xadthesis.\xad In\xadorder\xadto\xaddo\xadso,\xadthe\xadpotential\xadof\xaddifferent\xadgranules\xadis\xaddetermined\xadexperimentally,\xadalong\xadwith\xadthedescription of their material parameters as particles and as a bulk material, respectively. Furthermore, a \xadsimplified\xadside\xadhull\xadstructure\xadis\xaddesigned\xadfor\xadexperimental\xadtesting,\xadfollowed\xadby\xada\xadnumerical\xadstudy\xadof\xaddifferentmaterial models for the granules. This leads to the simulation of a realistic collision scenario, showing the potential in the maritime industry.\n Contents\n 1 Introduction 1\n 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1\n 1.2 State of the art . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2\n 1.3 Purpose and scope of this thesis . . . . . . . . . . . . . . . . . . . . . . . . 4\n 1.4 Outline of this thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5\n 2 Constitutive equations and numerical implementation 6\n 2.1 Constitutive equations . . . . . . . ....