Jonas Ringsberg

A comparison of approaches integrating power take-off systems into wave energy converters simulations

2025

An FMI-based co-simulation framework for simulations of wave energy converter systems

Size optimization of a tripod-shaped support structure for weight-efficient offshore wind turbines

Structural integrity analysis of marine dynamic cables: water trees and fatigue

2025

Probabilistic analysis of ship-bridge allisions when designing bridges

2024

Hydrodynamic interactions and enhanced energy harnessing amongst many WEC units in large-size wave parks

ISSC 2025 Committee III.1 - Compressive test of a transversely stiffened thin-plated structure with expected early nonlinear response prior to the ultimate capacity. Preliminary comparison of the numerical results

2024

Unsteady RANS and IDDES studies on a telescopic crescent-shaped wingsail

2024

Zero-emission propulsion system featuring, Flettner rotors, batteries and fuel cells, for a merchant ship

Structural integrity analysis of marine dynamic cables

A Dynamics-Constrained Rapid Path-Planning Method for Shipping in Arctic Waters

2024

Performance analysis of two generations of heaving point absorber WECs in farms of hexagon-shaped array layouts

2024

Rapid aerodynamic method for predicting the performance of interacting wing sails

Sea trials vs prediction by numerical models—Uncertainties in the measurements and prediction of WASP performance

Next-generation structural insights: advanced empirical models for ultimate compressive strength of ships and offshore plates

2024

A combined experimental and numerical approach to predict ship resistance and power demand in broken ice

2024

Manoeuvring modelling and control design of autonomous vessels on inland waterways

2024

System identification of a physics-informed ship model for better predictions in wind conditions

A Pilot Study on Modelling of the Human Body Loading as a Function of Ship Motion for Crew Safety in Seakeeping

2024

Physics-guided metamodel for vertical bending-induced fatigue damage monitoring in container vessels

On the lightweight design of laminated insulating glass units in cruise ships

The effects of sea-state on optimal generator parameters for a wave energy converter

2024

Towards autonomous inland shipping: a manoeuvring model in confined waterways

Fluid-structure interaction analysis of crescent-shaped wingsails

2024

The impact of wind farms on winter navigation

Development and performance analysis of a crescent-type sail for WASP applications

Experimental study on structure responses of triple wing sails to turbulence flows at multiple apparent wind angles

2023

A comparison of two wave energy converters’ power performance and mooring fatigue characteristics – One WEC vs many WECs in a wave park with interaction effects

2023

Propulsive performance of a rigid wingsail with crescent-shaped profiles

Fatigue of mooring lines in wave energy parks

2023

Fatigue assessment comparison between a ship motion-based data-driven model and a direct fatigue calculation method

2023

Cost–benefit analysis of a trans-arctic alternative route to the Suez canal: a method based on high-fidelity ship performance, weather, and ice forecast models

2023

Retrofitting WASP to a RoPax vessel - design, performance and uncertainties

Characteristics and mechanisms of low-alloy high-strength steel corrosion behavior under barnacle adhesion based on a comparison experiment

FSI simulations and analyses of a non-resonant buoyant wave energy converter

Structure analysis of lightweight sail structures for wind-assisted ship propulsion

2023

Consequence analyses of collision-damaged ships - damage stability, structural adequacy and oil spills

Predicting failure of dynamic subsea cables by electrical insulation breakdown due to water treeing

2023

A comparison of ship manoeuvrability models to approximate ship navigation trajectories

2023

Influence of the design constraints on the thickness optimization of glass panes to achieve lightweight insulating glass units in cruise ships

Evaluation of an electro-mechanical model of vented water tree inception in polyethylene insulation

The Ext-3DJPS algorithm for ship path planning in the Arctic

2023

Development of a ship performance model for power estimation of inland waterway vessels

Analysis of how the conditions in a collision scenario affect the size of a struck vessel’s damage opening and ultimate strength

2023

Characterization of the mechanical properties of low stiffness marine power cables through tension, bending, torsion, and fatigue testing

2023

Wind-assisted, electric, and pure wind propulsion - the path towards zero-emission RoRo ships

Data-driven ship fatigue assessment based on pitch and heave motions

Analysis of uncertainties in the prediction of fuel savings from WASP installations

Crack propagation in dynamic power cables

Thickness optimization of insulating glass unit in cruise ships

2022

On the thickness determination of rectangular glass panes in insulating glass units considering the load sharing and geometrically nonlinear bending

Propulsive performance of a novel crescent-shaped wind sail analyzed with unsteady RANS

Hull structural response prediction using distortion base modes

A comparison of the performance and characteristics of two generations Waves4Power WaveEL wave energy converters

ISSC Technical Committee III.1 - Ultimate Strength

Performance analysis of two generations of heaving point absorber WECs in farms of hexagon-shaped array layouts

2022

Uncertainty of ship hull girder ultimate strength in global bending predicted by Smith-type collapse analysis

Ultimate compressive strength of steel stiffened-plate structures triggered by brittle fracture under cryogenic conditions

Unsteady RANS and IDDES study on a telescopic crescent-shaped windsail

2022

Effects of dynamic axial stiffness of elastic moorings for a wave energy converter

2022

System identification of Vessel Manoeuvring Models

2022

Mechanical reliability analysis of flexible power cables for marine energy

Fatigue damage analysis of dynamic power cables by laboratory testing and FE analysis

2021

Methodology for the simulation of a ship’s damage stability and ultimate strength conditions following a collision

Benchmark study on slamming response of flat-stiffened plates considering fluid-structure interaction

2021

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: derivation, validation, and application of an empirical equation

Assessment of VIV fatigue of subsea template jumper by using a time domain model

Fatigue damage analysis of dynamic power cables by laboratory testing and FE analysis

2021

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

2021

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

Opportunities with renewable wave energy and challenges in the design of floating wave energy converter systems

A 3D ultimate limit state surface for intact and collision-damaged ship hulls

Mechanical reliability of flexible power cables for marine energy

2021

Analysis of roll damping model scale data

Assessment of VIV fatigue of subsea template jumper by using a time domain model

Performance prediction and design of wind-assisted propulsion systems

Prediction of roll motion using fully nonlinear potential flow and Ikeda’s method

A 3D ultimate limit state surface for intact and collision-damaged ship hulls

2021

The ISSC 2022 Committee III.1-Ultimate Strength benchmark study on the ultimate limit state analysis of a stiffened plate structure subjected to uniaxial compressive loads

Performance assessment of a tether component installed on elastic mooring lines for floating wave energy converters

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

2021

A method for risk analysis of ship collisions with stationary infrastructure using AIS data and a ship manoeuvring simulator

2021

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

An Arctic ship performance model for sea routes in ice-infested waters

A comparison of ship maneuverability models to approximate ship navigation trajectories

Hull structural response prediction using distortion base modes

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

ISSC 2022 Committee III.1 – Ultimate Strength Benchmark Data

2020

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

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

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

2020

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

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

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

2020

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

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

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

2020

Design, operation and analysis of wind-assisted cargo ships

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

Decarbonizing maritime transport: A Ro-Pax case study

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

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

2020

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

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

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

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

2019

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

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

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

Proceedings of the 8th International Conference on Computational Methods in Marine Engineering, MARINE 2019

2019

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

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

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

Computational models for the ultimate compressive strength analysis 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

2019

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

2019

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

Influence of different wave load schematisation on global ship structural response

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

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

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

Making effective WEC design choices based on simulation and analysis

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

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

2019

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

A voyage planning tool for Arctic transit of cargo ships

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

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

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

2018

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

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

ISSC Technical Committee II.1 - Quasi-Static Response

2018

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

Influence of different wave load schematization on global ship structural response

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

2018

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

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

Towards holistic performance-based conceptual design of Arctic cargo ships

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

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

Foreword

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

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

Wind-assisted propulsion for shipping: status and perspectives

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

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

Shock analysis of a stern ramp using dynamic design analysis method

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

A nonlinear viscoelastic iceberg material model and its numerical validation

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

Models and strategies

A generic energy systems model for efficient ship design and operation

Performance assessment of the crashworthiness of corroded ship hulls

Structural fire integrity testing of lightweight multiple core sandwich structures

Estimation of damping from wave induced vibrations in ships

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

Structural response analysis of slamming impact on free fall lifeboats

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

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

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

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

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

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

2015

Systems modelling for energy-efficient shipping

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

State-of-the-art within ship weather routing

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

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

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

Holistic ship energy systems modelling for efficient ship design and operation

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

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

ISSC Committee III.2 - Fatigue and fracture

Crack growth analysis in ship structures using spectral methods

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

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

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

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

Uncertainty in stress concentration factor computation for ship fatigue design

Fatigue failure analysis of fillet welded joints used in offshore structures

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

Analysis of fatigue crack initiation and propagation in ship structures

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

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

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

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

Assessment of the crashworthiness of a selection of innovative ship structures

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

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

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

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

Theoretical development and validation of a fatigue model for ship routing

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

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

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

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

A parametric study of joint design in a HSLC composite vessel

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

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

Development and analysis of composite car deck structures

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

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

Research, design, and operations

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

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

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

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

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

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

Development of a fatigue model useful in ship routing design

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?

Fatigue damage assessment of container ships concerning wave-induced torsion

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

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

Development of a fatigue model useful in ship routing design

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

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

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

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

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

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

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

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

ISSC Committee III.2 - Fatigue and Fracture

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

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

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

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 a welded rail under the influence of residual stresses

Guest editorial

Contact Mechanics and Wear of Rail/Wheel Systems

Shear mode growth of short surface-breaking RCF cracks

Influence of railway wheel flat impact on crack growth in rails

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

Fatigue crack growth in welded rails

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

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

Two-material rail for RCF and noise control

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

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

On propagation of short rolling contact fatigue cracks

Researchers on the track of wheel-rail interaction

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

Modelling of rolling contact fatigue of rails

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

Modelling the behaviour of short crack propagation in rails

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

Life prediction of rolling contact fatigue crack initiation

A method for prediction of fatigue crack initiation in railway rails

Finite element analyses of rolling contact fatigue crack initiation in railheads

Prediction of fatigue crack initiation for rolling contact fatigue

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

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

Cyclic ratchetting and failure of a pearlitic rail steel

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