Jonas Ringsberg

Professor at Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics

Jonas Ringsberg is the deputy head of department of Shipping and Marine Technology, and the head of Division of Marine Technology at Chalmers. He teaches and is responsible for courses in the international master’s programme in Naval Architecture and Ocean Engineering (MPNAV) on Chalmers. Besides his own research, he supervises and is the examiner of several PhD students. Research is focussed on computational mechanics, material mechanics and reliability analysis. His research interest and experience comprises material mechanics, fatigue (HCF, LCF, fracture mechanics, multiaxial fatigue, residual stresses and welds), probabilistic methods and risk analysis, composite mechanics and materials, and Arctic engineering. Research activities are applied on collision and grounding, lightweight structures, fatigue of marine structures, dynamic response, marine renewable energy, risk analysis and risk assessment, Arctic engineering, ship energy and transport efficiency modelling, safety and security.Jonas Ringsberg’s research is of interest and is connected to Chalmers Area of Advance Energy, Materials Science and Transport. He is member of the Nordic Committee for Safety at Sea, Associate Editor of the Journal of Offshore Mechanics and Arctic Engineering, member of The Editorial Boards of “The International Journal of Ships and Offshore Structures” and “Marine Structures”, member of the Steering Committee of Marstruct Virtual Institute, member of The Society of Naval Architects and Marine Engineers (SNAME) and in The Royal Institution of Naval Architects (RINA). Jonas Ringsberg is also member of The International Ship and Offshore Structures Committee (ISSC): the Technical Committee III.2 (Fatigue and Fracture) between 2006 and 2012, followed by the Technical Committee II.1 (Quasi-static Response) from 2012 acting as the committee chair.

Source: chalmers.se

Projects

2016–2016

Enhanced safety of ice-strengthened ship hulls in the Baltic Sea (ICEULTIMATE)

Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
European Commission (EC)

2015–2017

R&D of dynamic low voltage cables between the buoy and floating hub in a marine energy system

Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Energy Agency

2016–2018

Simulation model for operation and maintenance strategy of floating wave energy converters - analysis of fatigue, wear, and influence of biofouling for effective and profitable energy harvesting

Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Energy Agency

2012–2017

Modeling environmental loads and structural responses

Igor Rychlik Department of Mathematical Sciences, Mathematical Statistics
Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Research Council (VR)

3 publications exist
2012–2015

Ocean Energy Centre - Durability analysis of cables and moorings used in systems for harvesting of renewable ocean energy

Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Shun-Han Yang Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Erland Johnson Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Energy Agency

2014–2015

Undersökning av koncept, tillgängliga modeller och metoder användbara för prediktering, uppföljning och förbättring av fartygs energieffektivitet

Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Energy Agency

There might be more projects where Jonas Ringsberg participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2017

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

Chu Shi, Zhiqiang Hu, Jonas Ringsberg et al
Cold Regions Science and Technology. Vol. 133 (1), p. 15-25
Scientific journal article - peer reviewed
2016

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

Shun-Han Yang, Jonas Ringsberg, Erland Johnson et al
Progress in Renewable Energies Offshore – Proceedings of RENEW 2016, the Second International Conference on Renewable Energies Offshore, Lisbon, Portugal, October 24-26, (Editor C. Guedes Soares), p. 711-722
Conference paper - peer reviewed
2016

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

Jonas Ringsberg,
Ships and Offshore Structures, p. 10
Scientific journal article - peer reviewed
2016

A generic energy systems model for efficient ship design and operation

Fabian Tillig, Jonas Ringsberg, Wengang Mao et al
Journal of Engineering for the Maritime Environment, p. 10
Scientific journal article - peer reviewed
2016

A nonlinear viscoelastic iceberg material model and its numerical validation

Chu Shi, Zhiqiang Hu, Jonas Ringsberg et al
Journal of Engineering for the Maritime Environment, p. 10
Scientific journal article - peer reviewed
2016

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

Jonas Ringsberg,
Proceedings of the International Conference on Ships and Offshore Structures (ICSOS 2016) in Hamburg, Germany, August 31 – September 2, 2016, p. 464-478. (ICSOS2016-031)
Conference paper - peer reviewed
2016

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

Jonas Ringsberg, Niklas Blomgren, Matej Prevc et al
Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) in Busan, Korea, June 19-24, 2016, p. 11
Conference paper - peer reviewed
2016

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

Jonas Ringsberg, Daniel Karlsson, Mårten Forser et al
Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) in Busan, Korea, June 19-24, 2016, p. 10
Conference paper - peer reviewed
2016

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

Jonas Ringsberg, André Liljegren, Ola Lindahl et al
Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) in Busan, Korea, June 19-24, 2016, p. 10
Conference paper - peer reviewed
2016

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

Shun-Han Yang, Jonas Ringsberg, Erland Johnson et al
Ocean Engineering. Vol. 117 (1), p. 332-345
Scientific journal article - peer reviewed
2016

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

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Journal of Testing and Evaluation. Vol. 44 (6), p. 2321-2337
Scientific journal article - peer reviewed
2015

Holistic ship energy systems modelling for efficient ship design and operation

Fabian Tillig, Jonas Ringsberg, Wengang Mao et al
Proceedings of the RINA International Conference on Energy Efficient Ships, Rotterdam, The Netherlands, November 4, p. 7-16
Conference paper - peer reviewed
2015

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

Shun-Han Yang, Jonas Ringsberg, Erland Johnson et al
Proceedings of the 11th European Wave and Tidal Energy Conference (EWTEC 2015) in Nantes, France, September 6-11, 2015, p. 11
Conference paper - peer reviewed
2015

ISSC committee II.1 - Quasi-static respose

Jonas Ringsberg, Berend Bohlmann, Hui-Lung Chien et al
Proceedings of the Nineteenth International Ship and Offshore Structures Congress (ISSC 2015) in Cascais, Portugal, September 7-10, 2015. Vol. Vol 1, p. 141-207
Conference paper - peer reviewed
2015

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

Jonas Ringsberg, Viktor Daun, Fredrik Olsson et al
Proceedings of the ASME Thirty-fourth International Conference on Ocean, Offshore and Arctic Engineering (OMAE2015) in St John's, Newfoundland and Labrador, Canada, May 31-June 5, 2015., p. 13 (pp)
Conference paper - peer reviewed
2015

State-of-the-art within ship weather routing

Martin Hjorth Simonsen, Erik Larsson, Wengang Mao et al
Proceedings of the ASME Thirty-fourth International Conference on Ocean, Offshore and Arctic Engineering (OMAE2015) in St John's, Newfoundland and Labrador, Canada, May 31-June 5, 2015., p. 11(pp.)
Conference paper - peer reviewed
2015

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

Svein Erling Heggelund, Zhiyuan Li, Beom-Seon Jang et al
Proceedings of the ASME Thirty-fourth International Conference on Ocean, Offshore and Arctic Engineering (OMAE2015) in St John's, Newfoundland and Labrador, Canada, May 31-June 5, 2015. , p. 10
Conference paper - peer reviewed
2015

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

Yan Gao, Zhiqiang Hu, Jonas Ringsberg et al
Ocean Engineering. Vol. 102 (1), p. 27-39
Scientific journal article - peer reviewed
2015

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

Jonas Ringsberg, Zhiyuan Li, Andrea Tesanovic et al
Ships and Offshore Structures. Vol. 10 (1), p. 20-30
Scientific journal article - peer reviewed
2015

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

Jonas Ringsberg,
Analysis and Design of Marine Structures - Proceedings of the Fifth International Conference on Marine Structures (MARSTRUCT2015), Southampton, UK, March 25-27, (Editors C. Guedes Soares and R.A. Ajit)., p. 647-658
Conference paper - peer reviewed
2015

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

Wengang Mao, Zhiyuan Li, Viktor Ogeman et al
Marine Structures. Vol. 41 (1), p. 244-266
Scientific journal article - peer reviewed
2015

Systems modelling for energy-efficient shipping

Fabian Tillig, Wengang Mao, Jonas Ringsberg et al
Report
2014

Crack growth analysis in ship structures using spectral methods

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the 7th International Conference on Thin-Walled Structures (ICTWS2014) in Busan, Korea, 28th September - 2nd October, 2014, p. 9
Conference paper - peer reviewed
2014

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

Jonas Ringsberg, Wengang Mao,
Proceedings of the 7th International Conference on Thin-Walled Structures (ICTWS2014) in Busan, Korea, 28th September - 2nd October, 2014, p. 10
Conference paper - peer reviewed
2014

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

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Structural Safety. Vol. 51 (1), p. 35-46
Scientific journal article - peer reviewed
2014

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

Shun-Han Yang, Jonas Ringsberg, Erland Johnson et al
Proceedings of the ASME Thirty-third International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014) in San Francisco, California, USA, June 8-13, 2014. Vol. 4A
Conference paper - peer reviewed
2014

Uncertainty in stress concentration factor computation for ship fatigue design

Viktor Ogeman, Wengang Mao, Jonas Ringsberg et al
Proceedings of the ASME Thirty-third International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014) in San Francisco, California, USA, June 8-13, 2014. Vol. 4A
Conference paper - peer reviewed
2014

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

Zhiyuan Li, Jonas Ringsberg, Wengang Mao et al
Proceedings of the ASME Thirty-third International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014) in San Francisco, California, USA, June 8-13, 2014. Vol. 4A
Conference paper - peer reviewed
2014

Modelling approaches for reliability estimations of fibre-reinforced plastic laminates

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Proceedings of the ASME Thirty-third International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014) in San Francisco, California, USA, June 8-13, 2014. Vol. 4A
Conference paper - peer reviewed
2014

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

Jonas Ringsberg, Per Nordqvist, Mathias Broman et al
33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014; San Francisco; United States; 8 June 2014 through 13 June 2014. Vol. 10
Conference paper - peer reviewed
2014

Fatigue failure analysis of fillet welded joints used in offshore structures

Jonas Ringsberg, Djan Eirik Djavit, Strande Erik et al
Proceedings of the ASME Thirty-third International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014) in San Francisco, California, USA, June 8-13, 2014. Vol. 4A
Conference paper - peer reviewed
2014

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

Jonas Ringsberg, Hüseyin Sağlam, Md Asaduzzaman Sarder et al
Ships and Offshore Structures. Vol. 9 (1), p. 38-53
Scientific journal article - peer reviewed
2014

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

Zhiyuan Li, Wengang Mao, Jonas Ringsberg et al
Ocean Engineering. Vol. 82 (1), p. 65-74
Scientific journal article - peer reviewed
2013

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

Jonas Ringsberg, Per Ernholm, Love Hagström et al
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. Vol. 227 (4), p. 314-325
Scientific journal article - peer reviewed
2013

Time-domain fatigue assessment of ship side-shell structures

Zhiyuan Li, Jonas Ringsberg, Gaute Storhaug et al
International Journal of Fatigue. Vol. 55 (1), p. 276-290
Scientific journal article - peer reviewed
2013

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

Fredhi Agung Prasetyo, Wengang Mao, Tomohei Kobayashi et al
Proceedings of the Thirteenth International Conference on Fracture (ICF13) in Beijing, China, June 16-21, 2013, p. 9
Conference paper - peer reviewed
2013

Analysis of fatigue crack initiation and propagation in ship structures

Wengang Mao, Jonas Ringsberg,
Proceedings of the Thirteenth International Conference on Fracture (ICF13) in Beijing, China, June 16-21, 2013, p. 10
Conference paper - peer reviewed
2013

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

Jonas Ringsberg, Per Hogström,
Proceedings of the Sixth International Conference on Collision and Grounding of Ships (ICCGS6) in Trondheim, Norway, June 17-19, 2013 (Editors J. Amdahl, S. Ehlers and B.J. Leira), p. 323-330
Conference paper - peer reviewed
2013

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

Wengang Mao, Fredhi Agung Prasetyo, Jonas Ringsberg et al
Proceedings of the ASME Thirty-second International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2013) in Nantes, France, June 9-13, 2013. Vol. 2 A
Conference paper - peer reviewed
2013

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

Hans Liwång, Jonas Ringsberg,
Proceedings of the ASME Thirty-second International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2013) in Nantes, France, June 9-13, 2013, p. 10 (OMAE2013-10166)
Conference paper - peer reviewed
2013

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

Viktor Ogeman, Wengang Mao, Jonas Ringsberg et al
Proceedings of the Fifth International Conference on Computational Methods in Marine Engineering (MARINE 2013) in Hamburg, Germany, May 29-31, 2013 (Editors B. Brinkmann and P. Wriggers), International Center for Numerical Methods in Engineering (CIMNE), Barcelona, Spain, p. 342-353
Conference paper - peer reviewed
2013

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

Hans Liwång, Jonas Ringsberg, Martin Norsell et al
Safety Science. Vol. 58 (1), p. 98-112
Scientific journal article - peer reviewed
2013

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

Jonas Ringsberg, Zhiyuan Li, Andrea Tesanovic et al
Analysis and Design of Marine Structures - Proceedings of the Fourth International Conference on Marine Structures (MARSTRUCT2013), Helsinki, Finland, March 25-27, 2013 (Editors C. Guedes Soares and J. Romanoff), p. 485-496
Conference paper - peer reviewed
2013

Assessment of the crashworthiness of a selection of innovative ship structures

Per Hogström, Jonas Ringsberg,
Ocean Engineering. Vol. 59 (1), p. 58-72
Scientific journal article - peer reviewed
2013

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

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Journal of Composite Materials. Vol. 47 (16), p. 1931-1941
Scientific journal article - peer reviewed
2012

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

Martin Schreuder, Per Hogström, Jonas Ringsberg et al
Transactions - Society of Naval Architects and Marine Engineers. Vol. 119 (1), p. 603-619
Scientific journal article - peer reviewed
2012

ISSC committee III.2 - Fatigue and fracture

Agnes-Marie Horn, Jonas Ringsberg, Shuji Aihara et al
Proceedings of the Eighteenth International Ship and Offshore Structures Congress (ISSC 2012) in Rostock, Germany, September 9-13, 2012. Vol. Vol 1, p. 365-434
Conference paper - peer reviewed
2012

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

Zhiyuan Li, Wengang Mao, Jonas Ringsberg et al
Proceedings of the International Conference on Maritime Technology (ICMT2012) in Harbin, Heilongjiang, P. R. China, June 25-28, 2012, p. 405-409 (No. H95)
Conference paper - peer reviewed
2012

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

Zhiyuan Li, Jonas Ringsberg, Wengang Mao et al
Proceedings of the ASME Thirty-first International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) in Rio de Janeiro, Brazil, July 1-6, 2012. Vol. 2, p. 185-192 (OMAE2012-83332)
Conference paper - peer reviewed
2012

Fatigue variation in ships due to the variability of environmental loads

Wengang Mao, Zhiyuan Li, Jonas Ringsberg et al
Proceedings of the ASME Thirty-first International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) in Rio de Janeiro, Brazil, July 1-6, 2012. Vol. 2, p. 145-154 (OMAE2012-83293)
Conference paper - peer reviewed
2012

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

Jonas Ringsberg, Per Hogström,
Proceedings of the ASME Thirty-first International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) in Rio de Janeiro, Brazil, July 1-6, 2012. Vol. 2, p. 15-24 (OMAE2012-83033)
Conference paper - peer reviewed
2012

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

Wengang Mao, Zhiyuan Li, Jonas Ringsberg et al
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. Vol. 226 (3), p. 222-234
Scientific journal article - peer reviewed
2012

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

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Proceedings of the Fifteenth European Conference on Composite Materials (ECCM15) in Venice, Italy, June 24-28, 2012, p. 8
Conference paper - peer reviewed
2012

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

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the Twentysecond International Offshore and Polar Engineering Conference (ISOPE2012) on Rhodes, Greece, June 17-22, 2012. Vol. 4, p. 681-687
Conference paper - peer reviewed
2012

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

Hans Liwång, Jonas Ringsberg, M. Norsell et al
International Journal of Maritime Engineering. Vol. 154, p. A21-A30
Scientific journal article - peer reviewed
2012

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

Zhiyuan Li, Jonas Ringsberg,
Ships and Offshore Structures. Vol. 7 (2), p. 119-131
Scientific journal article - peer reviewed
2012

Research, design, and operations

Margareta Lützhöft, Jonas Ringsberg,
The Society of Naval Architects and Marine Engineers (SNAME) - Marine Technology. Vol. April 2012, p. 80-83
Journal article - popular science
2012

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

Per Hogström, Jonas Ringsberg,
Marine Structures. Vol. 27 (1), p. 1-28
Scientific journal article - peer reviewed
2012

Development and analysis of composite car deck structures

Peter Andersson, Dan Öisjöen, Jonas Ringsberg et al
Proceedings of the Second International Conference on Light Weight Marine Structures (LIWEM2012) in Gothenburg, Sweden, March 27-29, 2012 (Published on CD-ROM), p. 11
Conference paper - peer reviewed
2012

A parametric study of joint design in a HSLC composite vessel

Christian Näslund, Osman Ozan Uyanik, Jonas Ringsberg et al
Proceedings of the Second International Conference on Light Weight Marine Structures (LIWEM2012) in Gothenburg, Sweden, March 27-29, 2012 (Published on CD-ROM), p. 13
Conference paper - peer reviewed
2012

Theoretical development and validation of a fatigue model for ship routing

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Ships and Offshore Structures. Vol. 7 (4), p. 399-415
Scientific journal article - peer reviewed
2011

Development of a fatigue model useful in ship routing design

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
The Society of Naval Architects and Marine Engineers (SNAME) - TRANSACTIONS. Vol. 118 (1), p. 497-511
Scientific journal article - peer reviewed
2011

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

Wengang Mao, Jonas Ringsberg, Zhiyuan Li et al
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 2, p. 325-333 (OMAE2011-49456)
Conference paper - peer reviewed
2011

Direct calculation of fatigue damage of ship structure details

Zhiyuan Li, Jonas Ringsberg,
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 2, p. 551-558 (OMAE2011-49758)
Conference paper - peer reviewed
2011

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

Per Hogström, Jonas Ringsberg,
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 2, p. 43-51 (OMAE2011-49081)
Conference paper - peer reviewed
2011

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

Jonas Ringsberg, Per Ernholm, Love Hagström et al
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 1, p. 67-74 (OMAE2011-49088)
Conference paper - peer reviewed
2011

Optimization of corrugated shell plating for marine structures

Jonas Ringsberg, Hüseyin Sağlam, Md Asaduzzaman Sarder et al
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 1, p. 769-778 (OMAE2011-50216)
Conference paper - peer reviewed
2011

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

Per Hogström, Jonas Ringsberg, Erland Johnson et al
Ships and Offshore Structures. Vol. 6 (4), p. 339-354
Scientific journal article - peer reviewed
2011

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

Martin Schreuder, Per Hogström, Jonas Ringsberg et al
Journal of Ship Research. Vol. 55 (2), p. 86-99
Scientific journal article - peer reviewed
2011

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

Luis Felipe Sánchez-Heres, Jonas Ringsberg, Erland Johnson et al
Advances in Marine Structures - Proceedings of the Third International Conference on Marine Structures (MARSTRUCT2011), Hamburg, Germany, March 28-30, 2011 (Editors C. Guedes Soares and W. Fricke), p. 707-714
Conference paper - peer reviewed
2010

Development of a fatigue model useful in ship routing design

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Journal of Ship Research. Vol. 54 (4), p. 281-293
Scientific journal article - peer reviewed
2010

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

Jonas Ringsberg, Erland Johnson, Martin Schreuder et al
Proceedings of the Fifth International Conference on Collision and Grounding of Ships (ICCGS5) in Helsinki, Finland, June 14-16, 2010 (Editors S. Ehlers and J. Romanoff), p. 25-33
Conference paper - peer reviewed
2010

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

Wengang Mao, Zhiyuan Li, Thomas Galtier et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 133-141 (OMAE2010-20125)
Conference paper - peer reviewed
2010

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

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 123-131 (OMAE2010-20124)
Conference paper - peer reviewed
2010

Fatigue damage assessment of container ships concerning wave-induced torsion

Zhiyuan Li, Jonas Ringsberg, Wengang Mao et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 151-158 (OMAE2010-20140)
Conference paper - peer reviewed
2010

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

Per Hogström, Jonas Ringsberg, Erland Johnson et al
Proceedings of the ASME Twenty-ninth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 51-58 (OMAE2010-20052)
Conference paper - peer reviewed
2010

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

Jonas Ringsberg,
Ships and Offshore Structures. Vol. 5 (1-2), p. 51-66
Scientific journal article - peer reviewed
2009

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

Zhibin Jia, Jonas Ringsberg, Junbo Jia et al
International Journal of Steel Structures. Vol. 9 (3), p. 219-230
Scientific journal article - peer reviewed
2009

ISSC committee III.2 - Fatigue and fracture

Agnes-Marie Horn, Jonas Ringsberg, Marco Biot et al
Proceedings of the Seventeenth International Ship and Offshore Structures Congress (ISSC 2009) in Seoul, Korea, August 16-21, 2009. Vol. Vol 1, p. 475-586
Conference paper - peer reviewed
2009

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

Per Hogström, Jonas Ringsberg, Erland Johnson et al
Proceedings of the Twelfth International Conference on Fracture (ICF12) in Ottawa, Canada, July 12-17, 2009, p. 10
Conference paper - peer reviewed
2009

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

Jonas Ringsberg, Lennart Josefson,
Proceedings of the Twelfth International Conference on Fracture (ICF12) in Ottawa, Canada, July 12-17, 2009. Vol. Published on CD-ROM, p. 10
Conference paper - peer reviewed
2009

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

Per Hogström, Jonas Ringsberg, Erland Johnson et al
International Journal of Impact Engineering. Vol. 36 (10-11), p. 1194-1203
Scientific journal article - peer reviewed
2009

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

Zhibin Jia, Anders Ulfvarson, Jonas Ringsberg et al
Marine Structures. Vol. 22 (3), p. 438-456
Scientific journal article - peer reviewed
2009

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

Lennart Josefson, Jonas Ringsberg,
International Journal of Fatigue. Vol. 31 (8-9), p. 1413-1421
Scientific journal article - peer reviewed
2009

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

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the ASME Twenty-eighth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2009) on Hawaii, USA, May 31 - June 5, 2009. Vol. 2, p. 173-180 (OMAE2009-79235)
Conference paper - peer reviewed
2009

Holistic assessment of ship survivability and risk after damage

Martin Schreuder, Per Hogström, Jonas Ringsberg et al
Proceedings of the Third International Conference on Computational Methods in Marine Engineering (MARINE 2009) in Trondheim, Norway, June 15-17, 2009 (Editors T. Kvamsdal, B. Pettersen, P. Bergan, E. Onate and J. Garcia), International Center for Numerical Methods in Engineering (CIMNE), Barcelona, Spain, p. 347-351
Conference paper - peer reviewed
2009

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

Ulf B. Karlsson, Jonas Ringsberg, Erland Johnson et al
Marine Technology. Vol. 46 (1), p. 16-26
Scientific journal article - peer reviewed
2008

Meeting a growing need for ship collision safety

Jonas Ringsberg,
Scandinavian Shipping Gazette. Vol. August 29, p. 58-62
Scientific journal article - non peer reviewed
2008

Sheet metal fatigue near nuts welded to thin sheet structures

Jonas Ringsberg, Pierre Orvegren, Hans-Fredrik Henrysson et al
International Journal of Fatigue. Vol. 30 (5), p. 877-887
Scientific journal article - peer reviewed
2008

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

Junbo Jia, Jonas Ringsberg,
Marine Technology. Vol. 45 (1), p. 28-41
Scientific journal article - peer reviewed
2007

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

Lennart Josefson, Jonas Ringsberg,
Proceedings of the Eighth International Conference on Multiaxial Fatigue & Fracture (8th ICMF&F) in Sheffield, U.K., June 10-14, 2007. Vol. Published on CD-ROM, p. 8
Conference paper - peer reviewed
2006

Dynamics of vehicle-deck interactions

Junbo Jia, Jonas Ringsberg,
Proceedings of the Fourth China-Japan-US Symposium on Structural Control and Monitoring (SSCM 2006) in Hangzhou, China, October 16-17, 2006. Vol. Published on CD-ROM, p. 8
Conference paper - peer reviewed
2006

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

Jonas Ringsberg, Orvegren Pierre, Henrysson Hans-Fredrik et al
Proceedings of the Ninth International Fatigue Congress (FATIGUE 2006) in Atlanta, USA, May 14-19, 2006. Vol. Published on CD-ROM, p. 10
Conference paper - peer reviewed
2005

Fatigue crack growth in welded rails

Jonas Ringsberg, Anders Skyttebol, Lennart Josefson et al
Proceedings of the Eleventh International Conference on Fracture (ICF11) in Turin, Italy, March 20-25, 2005. Vol. Published on CD-ROM, p. 6
Conference paper - peer reviewed
2005

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

Jonas Ringsberg, Anders Skyttebol, Lennart Josefson et al
International Journal of Fatigue. Vol. 27 (6), p. 702-714
Scientific journal article - peer reviewed
2005

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

Jonas Ringsberg, Francis Franklin, Lennart Josefson et al
International Journal of Fatigue. Vol. 27 (6), p. 680-694
Scientific journal article - peer reviewed
2005

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

Martin Hiensch, Per-Olof Larsson, Olof Nilsson et al
Wear. Vol. 258 (7-8), p. 964-972
Scientific journal article - peer reviewed
2005

Shear mode growth of short surface-breaking RCF cracks

Jonas Ringsberg,
Wear. Vol. 258 (7-8), p. 955-963
Scientific journal article - peer reviewed
2005

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

Anders Skyttebol, Lennart Josefson, Jonas Ringsberg et al
Engineering Fracture Mechanics. Vol. 72 (2), p. 271-285
Scientific journal article - peer reviewed
2005

Influence of railway wheel flat impact on crack growth in rails

Jens C. O. Nielsen, Jonas Ringsberg, Luis Baeza et al
Proceedings of the Eighth International Heavy Haul Conference (IHHC8) in Rio de Janeiro, Brazil, June 14-16, 2005. Vol. Published on CD-ROM, p. 10
Conference paper - peer reviewed
2005

Guest editorial

Anders Ekberg, Jonas Ringsberg, Roger Lundén et al
Wear. Vol. 258 (7-8), p. 953-954
Scientific journal article - peer reviewed
2005

Contact Mechanics and Wear of Rail/Wheel Systems

Anders Ekberg, Jonas Ringsberg, Roger Lundén et al
Monograph, book - edited
2004

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

Lennart Josefson, Jonas Ringsberg,
Proceedings of the Fifteenth European Conference on Fracture (ECF15) in Stockholm, Sweden, August 11-13, 2004. Vol. Published on CD-ROM, p. 15
Conference paper - peer reviewed
2003

Researchers on the track of wheel-rail interaction

Anders Ekberg, Elena Kabo, Jens C. O. Nielsen et al
Railway Gazette International. Vol. 159 (6), p. 397-399
Journal article - popular science
2003

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

Martin Hiensch, Per-Olof Larsson, Olof Nilsson et al
Proceedings of the Sixth International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2003) in Göteborg, Sweden, June 10-13, 2003 (Editors A. Ekberg, E. Kabo and J.W. Ringsberg), Vasastadens Bokbinderi AB, Sweden, p. 39-48
Conference paper - peer reviewed
2003

Shear mode growth of short surface-breaking RCF cracks

Jonas Ringsberg,
Proceedings of the Sixth International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2003) in Göteborg, Sweden, June 10-13, 2003 (Editors A. Ekberg, E. Kabo and J.W. Ringsberg), Vasastadens Bokbinderi AB, Sweden, p. 29-38
Conference paper - peer reviewed
2003

Two-material rail for RCF and noise control

Martin Hiensch, Per-Olof Larsson, Didier Levy et al
Proceedings of the World Congress on Railway Research in Edinburgh, U.K., September 28-October 1, 2003. Vol. Published on CD-ROM, p. 12
Conference paper - non peer reviewed
2003

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

Martin Hiensch, Francis Franklin, Jens C. O. Nielsen et al
Fatigue & Fracture of Engineering Materials & Structures. Vol. 26 (10), p. 1007-1017
Scientific journal article - peer reviewed
2003

On propagation of short rolling contact fatigue cracks

Jonas Ringsberg, Anders Bergkvist,
Fatigue & Fracture of Engineering Materials & Structures. Vol. 26 (10), p. 969-983
Scientific journal article - peer reviewed
2003

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

Jonas Ringsberg, Torbjörn Lindbäck,
International Journal of Fatigue. Vol. 25 (6), p. 547-558
Scientific journal article - peer reviewed
2002

Modelling of rolling contact fatigue of rails

Jonas Ringsberg, Lennart Josefson,
Proceedings of Railway Engineering 2002 in London, U.K., July 3-4, 2002 (Editor M. Forde). Vol. Published on CD-ROM, p. 15
Conference paper - non peer reviewed
2002

Modelling the behaviour of short crack propagation in rails

Jonas Ringsberg,
Proceedings of the Eighth International Fatigue Congress (FATIGUE 2002) in Stockholm, Sweden, June 3-7, 2002 (Editor A. Blom), Higher Education Press, U.K., p. 3015-3022
Conference paper - peer reviewed
2002

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

Ajay Kapoor, Jonas Ringsberg, Lennart Josefson et al
Proceedings of the Eighth International Fatigue Congress (FATIGUE 2002) in Stockholm, Sweden, June 3-7, 2002 (Editor A. Blom), Higher Education Press, U.K., p. 1365-1372
Conference paper - peer reviewed
2001

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

Martin Hiensch, Ajay Kapoor, Lennart Josefson et al
Proceedings of the World Congress on Railway Research in Cologne, Germany, November 25-29, 2001. Vol. Published on CD-ROM, p. 16
Conference paper - non peer reviewed
2001

A method for prediction of fatigue crack initiation in railway rails

Jonas Ringsberg, Lennart Josefson,
Proceedings of the Sixth International Conference on Biaxial/Multiaxial Fatigue & Fracture (6th ICB/MF&F) in Lisboa, Portugal, June 25-28, 2001 (Editor M.M. Freitas), Instituto Superior Tecnico, Lisboa, Portugal, p. 477-484
Conference paper - peer reviewed
2001

Life prediction of rolling contact fatigue crack initiation

Jonas Ringsberg,
International Journal of Fatigue. Vol. 23 (7), p. 575-586
Scientific journal article - peer reviewed
2001

Finite element analyses of rolling contact fatigue crack initiation in railheads

Jonas Ringsberg, Lennart Josefson,
IMechE, Part F, Journal of Rail and Rapid Transit. Vol. 215 (F4), p. 243-259
Scientific journal article - peer reviewed
2000

Cyclic ratchetting and failure of a pearlitic rail steel

Jonas Ringsberg,
Fatigue & Fracture of Engineering Materials & Structures. Vol. 23 (9), p. 747-758
Scientific journal article - peer reviewed
2000

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

Lennart Josefson, Tomas Svensson, Jonas Ringsberg et al
Engineering Fracture Mechanics. Vol. 66 (6), p. 587-600
Scientific journal article - peer reviewed
2000

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

Jonas Ringsberg, Hans Bjarnehed, Anders Johansson et al
IMechE, Part F, Journal of Rail and Rapid Transit. Vol. 214 (F1), p. 7-19
Scientific journal article - peer reviewed
2000

Prediction of fatigue crack initiation for rolling contact fatigue

Jonas Ringsberg, Marianne Loo-Morrey, Lennart Josefson et al
International Journal of Fatigue. Vol. 22 (3), p. 205-215
Scientific journal article - peer reviewed
1999

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

Jonas Ringsberg, Lennart Josefson,
Proceedings of the Seventh International Fatigue Congress (FATIGUE 99) in Beijing, China, June 8-12, 1999 (Eds. X.R. Wu and Z.G. Wang), Higher Education Press, U.K., p. 2597-2602
Conference paper - peer reviewed
1998

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

Jonas Ringsberg, Anders Ulfvarson,
Marine Structures. Vol. 11 (6), p. 231-250
Scientific journal article - peer reviewed