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Proceedings Papers

The Influence of Structural Stiffness and Ice Shape on Impact Loads in Ice-Structure Interaction Experiments

Franciska Müller, Franz von Bock und Polach, Sören Ehlers
Proc. ASME. OMAE2024, Volume 6: Polar and Arctic Sciences and Technology; CFD, FSI, and AI, V006T07A014, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-124820
https://doi.org/10.1115/OMAE2024-124820
View Paper titled, The Influence of Structural Stiffness and Ice Shape on Impact Loads in Ice-Structure Interaction Experiments
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Topics: Ice, Ice-structure interaction, Shapes, Stiffness, Stress
Proceedings Papers

Methodology for Selection of Co-Simulation Platform for Digital Twin Development of Maritime Energy Systems

Vaidehi Gosala, Ludger Hachmeister, Sophie Stutz, Jan-Erik Giering, Sören Ehlers
Proc. ASME. OMAE2023, Volume 7: CFD & FSI, V007T08A009, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-101505
https://doi.org/10.1115/OMAE2023-101505
View Paper titled, Methodology for Selection of Co-Simulation Platform for Digital Twin Development of Maritime Energy Systems
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Topics: Digital twin, Energy / power systems, Simulation
Proceedings Papers

A Simulation-Based Approach for Evaluating Merchant Fleet Decarbonization Strategies

Martin Bergström, Vaidehi Gosala, Jorgen Depken, Annika Fitz, Frederik Euskirchen, Sören Ehlers
Proc. ASME. OMAE2023, Volume 5: Ocean Engineering, V005T06A030, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-102401
https://doi.org/10.1115/OMAE2023-102401
View Paper titled, A Simulation-Based Approach for Evaluating Merchant Fleet Decarbonization Strategies
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Topics: Ships, Simulation
Proceedings Papers

First Principle Design Load Estimation for LH2 Fuel Tanks by Means of 0D Approach

Tobias Lampe, Lukas Roß, Bright Ebikemefa Okpeke, Sören Ehlers
Proc. ASME. OMAE2023, Volume 5: Ocean Engineering, V005T06A007, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-102581
https://doi.org/10.1115/OMAE2023-102581
View Paper titled, First Principle Design Load Estimation for LH2 Fuel Tanks by Means of 0D Approach
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Topics: Design, Fuel storage, Hydrogen, Matlab, Simulation, Stress, Ships, Vapors, Carbon, Climate change
Proceedings Papers

Experimental and Numerical Analysis of Ice Crushing Tests With Different Shaped Ice Specimens

Franciska Müller, Angelo Böhm, Hauke Herrnring, Rüdiger U. Franz von Bock und Polach, Sören Ehlers
Proc. ASME. OMAE2023, Volume 6: Polar and Arctic Sciences and Technology, V006T07A015, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-103425
https://doi.org/10.1115/OMAE2023-103425
View Paper titled, Experimental and Numerical Analysis of Ice Crushing Tests With Different Shaped Ice Specimens
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Topics: Ice, Numerical analysis, Shapes, Failure mechanisms, Geometry, Ice-structure interaction, Ships, Failure, Stress, Coulombs
Proceedings Papers

The Influence of Edge Treatment on Fatigue Behavior of Thermal Cut Edges

Jan-Hendrik Grimm, Juliana Diniz e Castro, Hubertus von Selle, Moritz Braun, Franz von Bock und Polach, Sören Ehlers, Jonas Hensel, Ann-Christin Hesse, Klaus Dilger
Proc. ASME. OMAE2022, Volume 2: Structures, Safety, and Reliability, V002T02A033, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78431
https://doi.org/10.1115/OMAE2022-78431
View Paper titled, The Influence of Edge Treatment on Fatigue Behavior of Thermal Cut Edges
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Topics: Cutting, Fatigue, Fatigue testing, Steel, Yield strength
Proceedings Papers

New Findings on the Impact of the Idealization of Corrosion on the Brittle Failure of Steel

Michael Biglu, Franz von Bock und Polach, Sören Ehlers
Proc. ASME. OMAE2022, Volume 2: Structures, Safety, and Reliability, V002T02A040, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-82014
https://doi.org/10.1115/OMAE2022-82014
View Paper titled, New Findings on the Impact of the Idealization of Corrosion on the Brittle Failure of Steel
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Topics: Brittleness, Corrosion, Failure, Finite element analysis, Steel
Proceedings Papers

Analyzing Flexural Strength Data of Ice: How Useful Is Explainable Machine Learning?

Patrik Buil, Leon Kellner, Sören Ehlers, Franz von Bock und Polach
Proc. ASME. OMAE2022, Volume 6: Polar and Arctic Sciences and Technology, V006T07A012, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-87434
https://doi.org/10.1115/OMAE2022-87434
View Paper titled, Analyzing Flexural Strength Data of Ice: How Useful Is Explainable Machine Learning?
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Topics: Bending strength, Ice, Machine learning
Proceedings Papers

Fatigue Strength of Fixed Offshore Structures Under Variable Amplitude Loading Due to Wind, Wave, and Ice Action

Moritz Braun, Alfons Dörner, Tom Willems, Marc Seidel, Hayo Hendrikse, Knut V. Høyland, Claas Fischer, Sören Ehlers
Proc. ASME. OMAE2022, Volume 6: Polar and Arctic Sciences and Technology, V006T07A020, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78764
https://doi.org/10.1115/OMAE2022-78764
View Paper titled, Fatigue Strength of Fixed Offshore Structures Under Variable Amplitude Loading Due to Wind, Wave, and Ice Action
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Topics: Fatigue damage, Fatigue strength, Ice, Ocean engineering, Offshore structures, Stress, Wind waves
Proceedings Papers

Hydrodynamic and Mechanic Response of a Floating Flexible Ice Floe in Regular Waves With the ICFD Method

Jonas Behnen, Rüdiger u. Franz von Bock und Polach, Marco Klein, Sören Ehlers
Proc. ASME. OMAE2022, Volume 6: Polar and Arctic Sciences and Technology, V006T07A008, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78878
https://doi.org/10.1115/OMAE2022-78878
View Paper titled, Hydrodynamic and Mechanic Response of a Floating Flexible Ice Floe in Regular Waves With the ICFD Method
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Topics: Ice floes, Waves, Ice, Climate, Simulation, Stress, Water, Climate change, Computer simulation, Deflection
Proceedings Papers

Ice Pressure Measurements With TekScan Sensors - Behaviour, Calibration and Application Limits

Jan M. Kubiczek, Hauke Herrnring, Leon Kellner, Phil Ruckert, Sören Ehlers
Proc. ASME. OMAE2022, Volume 6: Polar and Arctic Sciences and Technology, V006T07A023, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-80463
https://doi.org/10.1115/OMAE2022-80463
View Paper titled, Ice Pressure Measurements With TekScan Sensors - Behaviour, Calibration and Application Limits
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Topics: Calibration, Ice, Pressure measurement, Sensors, Pressure, Failure, Computer simulation, Design, Measurement uncertainty, Offshore structures
Proceedings Papers

Scenario-Based Risk Management for Arctic Waters

Martin Bergström, Thomas Browne, Sören Ehlers, Inari Helle, Hauke Herrnring, Faisal Khan, Jan Kubiczek, Pentti Kujala, Mihkel Kõrgesaar, Bernt Johan Leira, Tuuli Parviainen, Arttu Polojärvi, Mikko Suominen, Rocky Taylor, Jukka Tuhkuri, Jarno Vanhatalo, Brian Veitch
Proc. ASME. OMAE2022, Volume 6: Polar and Arctic Sciences and Technology, V006T07A004, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-80767
https://doi.org/10.1115/OMAE2022-80767
View Paper titled, Scenario-Based Risk Management for Arctic Waters
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Topics: Arctic region, Ice, Risk management, Ships, Stress, Water
Journal Articles

A Finite Element Model for Compressive Ice Loads Based on a Mohr-Coulomb Material and the Node Splitting Technique

Hauke Herrnring, Sören Ehlers
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. April 2022, 144(2): 021601.
Paper No: OMAE-21-1069
https://doi.org/10.1115/1.4052746
Published Online: November 12, 2021
View Article titled, A Finite Element Model for Compressive Ice Loads Based on a Mohr-Coulomb Material and the Node Splitting Technique
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Topics: Ice, Simulation, Coulombs, Extruding, Stress, Ice-structure interaction
Proceedings Papers

A Finite Element Model for Compressive Ice Loads Based on a Mohr-Coulomb Material and the Node Splitting Technique

Hauke Herrnring, Sören Ehlers
Proc. ASME. OMAE2021, Volume 7: Polar and Arctic Sciences and Technology, V007T07A012, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62803
https://doi.org/10.1115/OMAE2021-62803
View Paper titled, A Finite Element Model for Compressive Ice Loads Based on a Mohr-Coulomb Material and the Node Splitting Technique
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Topics: Coulombs, Finite element model, Ice, Stress, Ice-structure interaction, Brittleness, Simulation, Fracture (Materials), Erosion, Failure mechanisms
Journal Articles

Guidance for Material Selection Based on Static and Dynamic Mechanical Properties at Sub-Zero Temperatures

Moritz Braun, Adrian Kahl, Tom Willems, Marc Seidel, Claas Fischer, Sören Ehlers
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. August 2021, 143(4): 041704.
Paper No: OMAE-20-1126
https://doi.org/10.1115/1.4049252
Published Online: January 12, 2021
View Article titled, Guidance for Material Selection Based on Static and Dynamic Mechanical Properties at Sub-Zero Temperatures
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Topics: Design, Offshore structures, Ships, Steel, Temperature, Arctic region, Fatigue strength, Fatigue
Proceedings Papers

Sub-Zero Temperature Fatigue Strength of Butt-Welded Normal and High-Strength Steel Joints for Ships and Offshore Structures in Arctic Regions

Moritz Braun, Aleksandar-Saša Milaković, Sören Ehlers, Adrian Kahl, Tom Willems, Marc Seidel, Claas Fischer
Proc. ASME. OMAE2020, Volume 3: Materials Technology, V003T03A010, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18892
https://doi.org/10.1115/OMAE2020-18892
View Paper titled, Sub-Zero Temperature Fatigue Strength of Butt-Welded Normal and High-Strength Steel Joints for Ships and Offshore Structures in Arctic Regions
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Topics: Arctic region, Fatigue strength, Fatigue testing, High strength steel, Offshore structures, Ships, Temperature
Proceedings Papers

A Discrete Element Model for Brash Ice Simulations

Jonas Behnen, Quentin Hisette, Sören Ehlers, Rüdiger U. Franz von Bock und Polach
Proc. ASME. OMAE2020, Volume 7: Polar and Arctic Sciences and Technology, V007T07A015, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18667
https://doi.org/10.1115/OMAE2020-18667
View Paper titled, A Discrete Element Model for Brash Ice Simulations
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Topics: Ice, Simulation, Computer simulation, Mechanical behavior, Cold climates, Concretes, Design, Discrete element methods, Friction, Ice rubble
Proceedings Papers

Simulation of Ship-Ice Interaction in Level Ice

Sandro Erceg, Sören Ehlers, Franz von Bock und Polach
Proc. ASME. OMAE2020, Volume 7: Polar and Arctic Sciences and Technology, V007T07A022, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18031
https://doi.org/10.1115/OMAE2020-18031
View Paper titled, Simulation of Ship-Ice Interaction in Level Ice
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Topics: Ice, Ships, Simulation
Journal Articles

Investigation of Nonlinear Wave–Ice Interaction Using Parameter Study and Numerical Simulation

Moritz C. N. Hartmann, Franz von Bock und Polach, Sören Ehlers, Norbert Hoffmann, Miguel Onorato, Marco Klein
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. April 2020, 142(2): 021601.
Paper No: OMAE-19-1053
https://doi.org/10.1115/1.4045625
Published Online: February 6, 2020
View Article titled, Investigation of Nonlinear Wave–Ice Interaction Using Parameter Study and Numerical Simulation
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Topics: Ice, Water, Waves, Nonlinear waves
Proceedings Papers

Power Spectrum for Surface Description of Corroded Ship Structure From Laser Scan

Karoline M. Neumann, Sören Ehlers
Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A015, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95907
https://doi.org/10.1115/OMAE2019-95907
View Paper titled, Power Spectrum for Surface Description of Corroded Ship Structure From Laser Scan
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Topics: Corrosion, Lasers, Ships, Steel