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

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Christian Woitzik

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

Series: Mechanik/Bruchmechanik

Volume 356 2021

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Introduction S. 1-5

„… operation of a ship. A double hull structure is a widely used design for tankers, bulk carries, container …” „… on the design of a double hull structure. To put the empty space into a good use, granules are …” „… . Considering the collision safety of double hull structures, changes in the structural design can be …”

Titelei/Inhaltsverzeichnis S. I-VIII

„… absorber for double hull structures M.Sc. Christian Woitzik, Hamburg BAND 1|1 VOLUME 1|1 NR. 356 REIHE …” „… simulation of granules as crash absorber for double hull structures M.Sc. Christian Woitzik, Hamburg NR …” „… testing and numerical simulation of granules as crash absorber for double hull structures …”

Numerical investigation S. 88-112

„… double hull structure and 147000 elements for the granules. Due to the nonsymmetric rupture of the plates …” „… stiffness of the double hull structure. Looking at the two different material models, the Mohr-Coulomb is …” „… for the double hull structure filled with granules using Poraver with the Mohr-Coulomb material model …”

Experimental investigation S. 64-87

„… 5.1: Model of the considered double hull structure with a box to contain the granules and a small …” „… therefore the double hull structure, slides in horizontal direction. In total, a horizontal movement of 30 …” „… mm cutout 120 mm Figure 5.21: Model of the double hull structure with stiffener (left) and specimen …”

Bibliography S. 119-136

„… design of double hull tanker structures against collision, in: Proceedings of The Annual Meeting of The …” „… of scaled double hull structures under collision load in finite element simulations, Procedia …” „… simulation of granules as crash absorber for double hull structures M.Sc. Christian Woitzik, Hamburg BAND …”

Conclusions and Outlook S. 113-115

„… granules as a filling material for double hull stuctures. The investigation began with the identification …” „… experimental testing. A simplified side hull structure was designed in order to confine the granules in a box …” „… surrounding structure. In addition, a change in rupture mechanism is observed. The outer hull is clamped …”

Selection of granules and description of single grains S. 24-39

„… partner. 3.1 Selection of granules The material used inside a double hull structure has to fulfil …” „… create an uplift and can be collected from the surface if they are discharged from the double hull …” „… results for a simplified side hull structure filled with particles [111]. 36 3.2 Determination of grain …”

Determination of bulk particle properties S. 40-63

„… Tensile testDouble hull structure Damage parameters for steel Double hull structure Experiments …” „… same elements will be used for the double hull structure as well. A similar approach was used in [146 …” „… double hull structure. A S235 ship building steel is used, with a minimum yield strength of 235 MPa. All …”

Constitutive equations and numerical implementation S. 6-23

„… behaviour in the double hull experiments. The derived constitutive equations are approximated by the finite …” „… crystalline structure of metals, see Figure 2.9 and, secondly, shearing due to localisation of shear stress …” „… kinematic relations of a deformable structure, a body Ω in the three-dimensional space is considered. The …”

doi.org/10.51202/9783186356185

Marcel König - Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

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Marcel König

Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

Series: Mechanik/Bruchmechanik

Volume 351 2018

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Benchmark Problems S. 158-217

„… propagate further into the hull structure [118, p. 191]. In the design stage, the hydrodynamically induced …” „… pimpleDyMFoam solver, which is part of the opensource CFD package OpenFOAM [123]. For the structure, we employ …” „… number of degrees of freedom at the fluid-structure interface. Snapshots of the pressure and the velocity …”

doi.org/10.51202/9783186351180

Werner Lang - PLEA 2013 Munich: Sustainable Architecture for a Renewable Future.

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Werner Lang (ed.)

PLEA 2013 Munich: Sustainable Architecture for a Renewable Future.

2013

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Session I.5 Regions, Cities, Neighborhoods: Quality Control S. 160-190

„… had ‘standard’ physical interventions such as double glazing and energy efficient …” „… majority of households have loft insulation (to recommended levels) and double glazing. In terms of …” „… on my ceiling.” And; “RF: I’ve got double glazing and I’ve wall insulation…to keep the heat from …”

doi.org/10.51202/9783816790549

Herwig Unger, Wolfgang A. Halang - Autonomous Systems 2017

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Herwig Unger (ed.), Wolfgang A. Halang (ed.)

Autonomous Systems 2017

Series: Informatik/ Kommunikation

Volume 857 2017

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Gerhard Sartorius Data Preprocessing and Outlier Detection in Multivariate Data S. 105-140

„… structure in an artificial neural network for the classification of objects consists of different signal …” „… sources do not have the same structure; rather, they have a different number of dimensions and they can be …” „… these values to the input structure of the artificial network, different methods were used. Sensor …”

doi.org/10.51202/9783186857101

Benjamin Schleich - Skin Model Shapes: A new Paradigm for the Tolerance Analysis and the Geometrical Variations Modelling in Mechanical Engineering

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Benjamin Schleich

Skin Model Shapes: A new Paradigm for the Tolerance Analysis and the Geometrical Variations Modelling in Mechanical Engineering

Series: Konstruktionstechnik/Maschinenelemente

Volume 438 2017

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A comprehensive Framework for the Computer-Aided Tolerance Analysis based on Skin Model Shapes S. 85-156

„… convex hull methods, in [RABL11] based on genetic optimization algorithms, in [SZ12] using four different …” „… at a minimum. In order to compute the flatness tolerance zone for a plane feature, the convex hull of …” „… the plane is computed [Roy95], e. g. employing the `ickHull algorithm [BDH96]. Following that, the …”

doi.org/10.51202/9783186438010

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