Jonas Ringsberg

A voyage planning tool for ships sailing between Europe and Asia via the Arctic

2020

Concept design and performance evaluation of a fossil-free operated cargo ship with unlimited range

Safe and fuel-efficient voyage planning for the northeast passage by combining reliable ship performance, weather and ice forecast models

Wave energy converters in array configurations—Influence of interaction effects on the power performance and fatigue of mooring lines

Comparison of two rapid numerical methods for predicting the performance of multiple rigid wing-sails

Reduced environmental impact of marine transport through speed reduction and wind assisted propulsion

Ship energy performance study of three wind-assisted ship propulsion technologies including a parametric study of the Flettner rotor technology

A comparison of two ship performance models against full-scale measurements on a cargo ship on the Northern Sea Route

Full-scale collapse testing of a steel stiffened plate structure under axial-compressive loading triggered by brittle fracture at cryogenic condition

2020

Experimental and numerical investigation of a taut-moored wave energy converter: a validation of simulated mooring line forces

Ship resistance when operating in floating ice floes: a derivation of empirical equations

Load-carrying characteristics of foam core and joint geometry in sandwich structures

Design of mooring solutions and array systems for point absorbing wave energy devices – methodology and application

Decarbonizing maritime transport: A Ro-Pax case study

Full-scale collapse testing of a steel stiffened plate structure under axial-compressive loading at a temperature of −80°C

Full-scale collapse testing of a steel stiffened plate structure under cyclic axial-compressive loading

Ultimate limit state analysis of a double-hull tanker subjected to biaxial bending in intact and collision-damaged conditions

Analysis of roll damping model scale data

Concept design and performance evaluation of a fossil free operated cargo ship with unlimited range

Mooring forces in a floating point-absorbing WEC system – a comparison between full-scale measurements and numerical simulations

Decarbonizing maritime transport: A Ro-Pax case study

Reduced environmental impact of marine transport through speed reduction and wind assisted propulsion

Improving surface resistance to wear and corrosion of nickel‑aluminum bronze by laser-clad TaC/Co-based alloy composite coatings

2020

Design, operation and analysis of wind-assisted cargo ships

A revisit of the definition of the ship domain based on AIS analysis

Models for design and fatigue analysis of dynamic power cables for wave energy converters

A methodology for design and fatigue analysis of power cables for wave energy converters

Critical Void Volume Fraction Identification Based on Mesoscopic Damage Model for NVA Shipbuilding Steel

Weight optimization of an enclosed stressed skin derrick designed for Arctic regions

2019

Large scale physical model testing on the ultimate compressive strength of a steel stiffened plate structure at cryogenic condition

Comparison between full-scale measurements and numerical simulations of mooring forces in a floating point-absorbing wec system

A comparison of two definitions of ship domain for analysing near ship–ship collisions

An ice material model for assessment of strain rate, temperature and confining pressure effects using finite element method

Experimental and numerical investigation of a taut-moored wave energy converter: a validation of simulated mooring line forces

Analysis of interaction effects between WECs in four types of wave farms

ShipCLEAN – An integrated model for transport efficiency, economics and CO2 emissions in shipping

Computational models for the ultimate compressive strength analysis of a steel stiffened plate structure at cryogenic condition

2019

Large scale physical model testing on the ultimate strength of a steel stiffened plate structure under cyclic compressive loading

2019

A 4 DOF simulation model developed for fuel consumption prediction of ships at sea

Mooring forces in a floating point-absorbing WEC system – a comparison between full-scale measurements and numerical simulations

An ice material model addressing the influence of strain rate, temperature, confining pressure and porosity

Revisiting MARSTRUCT benchmark study on side-shell collision with a combined localized necking and stress-state dependent ductile fracture model

Making effective WEC design choices based on simulation and analysis

A voyage planning tool for ships sailing between Europe and Asia via the Arctic

2019

Computational models for the ultimate compressive strength analysis of a steel stiffened plate structure at cryogenic condition

Large scale physical model testing on the ultimate compressive strength of a steel stiffened plate structure at cryogenic condition

2019

Computational models for the ultimate strength analysis of steel stiffened plate structures under monotonic and cyclic compressive loadings

Nonlinear viscoelastic-plastic material modelling for the behaviour of ice in ice-structure interactions

A voyage planning tool for Arctic transit of cargo ships

Effective use of composite marine structures: reducing weight and acquisition cost

Analysis of the ultimate strength of corroded ships involved in collision accidents and subjected to biaxial bending

2018

Parametric study of the dynamic motions and mechanical characteristics of power cables for wave energy converters

A 4 DOF simulation model developed for fuel consumption prediction of ships at sea

2018

Analysis of uncertainties in the prediction of ships’ fuel consumption – from early design to operation conditions

MARSTRUCT benchmark study on nonlinear FE simulation of an experiment of an indenter impact with a ship side-shell structure

An ice material model for assessment of strain rate, temperature and confining pressure effects using finite element method

Cost and weight of composite ship structures - a parametric study based on DNV rules

ISSC Technical Committee II.1 - Quasi-Static Response

Experimental and numerical investigation of a taut-moored wave energy converter—a validation of simulated buoy motions

Influence of different wave load schematisation on global ship structural response

Comparison of mooring solutions and array systems for point absorbing wave energy devices

2018

Reduction in ultimate strength capacity of corroded ships involved in collision accidents

Influence of different wave load schematization on global ship structural response

Towards holistic performance-based conceptual design of Arctic cargo ships

Wind-assisted propulsion for shipping: status and perspectives

Shock analysis of a stern ramp using dynamic design analysis method

Biofouling on mooring lines and power cables used in wave energy converter systems - analysis of fatigue life and energy performance

Analysis of impact loads on a self-elevating unit during jacking operation

A nonlinear viscoelastic iceberg material model and its numerical validation

A study on the influence of ageing of coatings on their mechanical properties and fracture in ballast tanks

Structural fire integrity testing of lightweight multiple core sandwich structures

A generic energy systems model for efficient ship design and operation

Models and strategies

Reduction in ultimate strength capacity of corroded ships involved in collision accidents

Performance assessment of the crashworthiness of corroded ship hulls

Validation of a temperature-gradient-dependent elastic-plastic material model of ice with finite element simulations

Structural response analysis of slamming impact on free fall lifeboats

Estimation of damping from wave induced vibrations in ships

Analysis of the reduction of uncertainties in the prediction of ships’ fuel consumption – from early design to operation conditions

Structural analysis of node cut-outs in a semi-submersible offshore platform

Sloshing impact response in LNG membrane carriers – a response analysis of the hull structure supporting the membrane tanks

A comparison of coupled and de-coupled simulation procedures for the fatigue analysis of WEC mooring lines

Ageing of organic marine coatings and its influence on their mechanical properties and fracture in ballast tanks

The influence of biofouling on power capture and the fatigue life of mooring lines and power cables used in wave energy converters

Ultimate limit state analysis of FRP composite sandwich plates – development of a semi-analytical method

Characterization of non-crimp fabric laminates: loss of accuracy due to strain measuring techniques

Quasi-static assessment of response to slamming impact on free fall lifeboats

Parametric study of the mechanical characteristics of power cables under dynamic motions

Linear and nonlinear FE analyses of a container vessel in harsh sea state

Steel or composite car deck structure – a comparison analysis of weight, strength and cost

2015

Systems modelling for energy-efficient shipping

State-of-the-art within ship weather routing

A regression and beam theory based approach for fatigue assessment of containership structures including bending and torsion contributions

ISSC Committee II.1 - Quasi-Static Response

Holistic ship energy systems modelling for efficient ship design and operation

An elastic–plastic ice material model for ship-iceberg collision simulations

Analysis of impact loads on a self-elevating unit during jacking operation

ISSC Committee III.2 - Fatigue and fracture

Study of potential benefits of ship route planning considering fuel consumption, ETA and fatigue damage accumulation

A comparative study of fatigue assessments of container ship structures using various direct calculation approaches

Influence of mechanical and probabilistic models on the reliability estimates of fibre-reinforced cross-ply laminates

Crack growth analysis in ship structures using spectral methods

Fatigue failure analysis of fillet welded joints used in offshore structures

An efficient direct calculation approach for fatigue assessment of container ships concerning bending and warping stresses

Lightweight design of offshore platform marine structures - optimisation of weight to strength utilisation of corrugated shell plating

Development of a model for global response of ship hull during ramming of heavy ice features

Modelling approaches for reliability estimations of fibre-reinforced plastic laminates

Analysis of mooring lines for wave energy converters – a comparison of de-coupled and coupled simulation procedures

Uncertainty in stress concentration factor computation for ship fatigue design

Ship security analysis – the effect of ship speed and effective lockout

Analysis of crack retardation effects and crack path in ship structure members on different routes

Procedure for the identification and analysis of vibration characteristics and mode shapes of semi-submersible platforms

Quantitative risk analysis – Ship security analysis for effective risk control options

Assessment of the crashworthiness of a selection of innovative ship structures

A comparison of two wave models and their influence on fatigue damage in ship structures

Comparison of computational methods for evaluation of wave-load-induced fatigue damage accumulation in a containership structure detail

Analysis of fatigue crack initiation and propagation in ship structures

A methodology for comparison and assessment of three crashworthy side-shell structures: the X-core, Y-core and corrugation panel structures

Linear and nonlinear FE analyses of a container vessel in harsh sea state

Time-domain fatigue assessment of ship side-shell structures

Study on the possibility of increasing the maximum allowable stresses in fibre-reinforced plastics

Comparison and assessment of the crashworthiness of three innovative side-shell structures: the X-core, Y-core and corrugation panel structures

Development and analysis of composite car deck structures

Fatigue routing of container ships – assessment of contributions to fatigue damage from wave-induced torsion and horizontal and vertical bending

An extensive study of a ship's survivability after collision – A parameter study of material characteristics, non-linear FEA and damage stability analyses

Effects of matrix cracking on the estimation of operational limits of FRP laminates

Theoretical development and validation of a fatigue model for ship routing

Fatigue variation in ships due to the variability of environmental loads

Application of a ship-routeing fatigue model to case studies of 2800 TEU and 4400 TEU container vessels

A parametric study of joint design in a HSLC composite vessel

A comparison of direct calculation approaches applied on the fatigue strength assessment of a Panamax container ship

What is the potential of using ship fatigue routing in terms of fatigue life extension?

A comparative study of fatigue assessment of a container ship structure using various direct calculation approaches

Research, design, and operations

A method for assessment of the survival time of a ship damaged by collision

Probabilistic risk assessment for integrating survivability and safety measures on naval ships

Assessment of full-scale measurements with regard to extreme hogging and sagging condition of container ships

Survivability analysis of a struck ship with damage opening - influence from model and material properties uncertainties

Optimization of corrugated shell plating for marine structures

Direct calculation of fatigue damage of ship structure details

What can we learn from uncertainty analysis with respect to survivability or time to capsize of a ship struck in collision?

Optimization of composite maritime structures - effects of uncertainties on design criteria limits

Development of a fatigue model useful in ship routing design

A method for assessment of the survival time of a ship damaged by collision

Analysis of free vibration characteristics and mode shapes of a semi-submersible platform

Fatigue damage assessment of container ships concerning wave-induced torsion

Characteristics of material, ship side structure response and ship survivability in ship collisions

Analysis of a struck ship with damage opening - influence from model and material properties uncertainties

Estimation of wave loading induced fatigue accumulation and extreme response of a container ship in severe seas

The effect of whipping/springing on fatigue damage and extreme response of ship structures

Examples of selected research efforts made on characteristics of material, ship side structure response and ship survivability in ship collisions

Development of a fatigue model useful in ship routing design

Comparison between a fatigue model for voyage planning and measurements of a container vessel

Experimental verification of finite element failure criteria with respect to strain state and element size

ISSC Committee III.2 - Fatigue and Fracture

Assessment of uncertainties in life prediction of fatigue crack initiation and propagation in welded rails

A return period based plastic design approach for ice loaded side-shell/bow structures

An experimental and numerical study of the effects of length scale and strain state on the necking and fracture behaviours in sheet metals

Numerical analysis of nonlinear dynamic structural behaviour of ice-loaded side-shell structures

Experimental and numerical investigation of bulb impact with a ship side-shell structure

Holistic assessment of ship survivability and risk after damage

Assessment of uncertainties in life prediction of fatigue crack propagation in welded rails

Meeting a growing need for ship collision safety

Sheet metal fatigue near nuts welded to thin sheet structures

Numerical and experimental investigation of dynamics of vehicle/ship-deck interactions

Assessment of uncertainties in life prediction of fatigue crack initiation in rails – influence of residual stresses from manufacturing

Sheet metal fatigue near nuts welded to thin sheet structures in car bodies

Dynamics of vehicle-deck interactions

Contact Mechanics and Wear of Rail/Wheel Systems

Shear mode growth of short surface-breaking RCF cracks

Fatigue evaluation of surface coated railway rails using shakedown theory, finite element calculations, and lab and field trials

Influence of railway wheel flat impact on crack growth in rails

Investigation of the rolling contact fatigue resistance of laser cladded twin-disc specimens: FE simulation of laser cladding, grinding and a twin-disc test

Fatigue crack growth in welded rails

Two-material rail development: field test results regarding rolling contact fatigue and squeal behaviour

Fatigue crack growth in a welded rail under the influence of residual stresses

Guest editorial

Redistribution of stresses from manufacturing operations during service loads and the effect on fatigue life of built-up structures

On propagation of short rolling contact fatigue cracks

Two-material rail development: Field test results regarding rolling contact fatigue and squeal behaviour

Prevention of RCF damage in curved track through development of the INFRA-STAR two-material rail

Shear mode growth of short surface-breaking RCF cracks

Two-material rail for RCF and noise control

Researchers on the track of wheel-rail interaction

Rolling contact fatigue analysis of railway rails including simulations of the rail manufacturing process and wheel-rail rolling-sliding contact loads

Modelling the behaviour of short crack propagation in rails

Modelling of rolling contact fatigue of rails

Shakedown limits in three-dimensional wheel-rail rolling-sliding contacts

Life prediction of rolling contact fatigue crack initiation

Two-material rail development to prevent rolling contact fatigue and to reduce noise levels in curved rail track

Finite element analyses of rolling contact fatigue crack initiation in railheads

A method for prediction of fatigue crack initiation in railway rails

Cyclic ratchetting and failure of a pearlitic rail steel

Rolling Contact Fatigue of Railway Rails with Emphasis on Crack Initiation

Rolling contact fatigue of rails-finite element modelling of residual stresses, strains and crack initiation

Fatigue life and crack closure in specimens subjected to variable amplitude loads under plane strain conditions

Prediction of fatigue crack initiation for rolling contact fatigue

Assessment of conditions for initiation of cracks in the heads of railway rails due to rolling contact fatigue

On mechanical interaction between steel and coating in stressed and strained exposed locations

On mechanical interaction between steel and coating in welded structures