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Numerical study of ice loads on different interfaces based on cohesive element formulation.

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This study investigates ice loads on Arctic marine structures, finding that structural shape significantly impacts ice forces. Understanding ice-structure interaction is crucial for designing safer Arctic offshore facilities.

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Area of Science:

  • Arctic Engineering
  • Marine Structures
  • Ice Mechanics

Background:

  • Increasing marine activities in the Arctic necessitate reliable designs for marine structures.
  • Existing research on ice loads often uses cohesive element models but rarely addresses structural form's influence.
  • A comprehensive understanding of ice loads considering varied interface geometries is needed.

Purpose of the Study:

  • To investigate the influence of structural form on ice loads acting on marine structures.
  • To develop and validate three-dimensional finite element models for simulating ice-structure interaction.
  • To explore how different interface geometries affect ice loads and failure processes.

Main Methods:

  • Development of three-dimensional finite element models utilizing the cohesive element method.
  • Validation of numerical results against in-situ testing data and previous numerical models.
  • Conducting parametric studies on structure width, inclination angle, ice velocity, and structure roughness.

Main Results:

  • Numerical simulations quantified ice loads on structures with varying interface geometries.
  • Parametric studies revealed the influence of structural parameters on horizontal ice force and ice sheet failure.
  • Simplified diagrams illustrating ice load distribution on the interface were developed.

Conclusions:

  • Structural form is a critical factor influencing ice loads on Arctic marine structures.
  • The developed finite element models provide a validated approach for simulating ice-structure interaction.
  • Findings contribute to improved design methodologies for marine structures in icy environments.