Divisions

Division I - Mechanics of Materials       

  • Properties of metallic and non-metallic materials (such as concrete, graphite, high-density polyethylene, rubber, plastics), and their constitutive laws for behavior under monotonic, cyclic and dynamic loadings.
  • Experimental and analytical methods to characterize nonlinear behavior of isotropic and anisotropic materials.
  • Degradation mechanisms including effects of thermal cycling, aging, embrittlement, welding, stress corrosion, fatigue, creep, cavitation, and interactions.
  • Fuel and clad materials.
  • Nano materials for next generation reactors and associated facilities.

Division II - Fracture Mechanics and Structural Integrity

  • Experimental and theoretical results on brittle and ductile fracture of metallic, non-metallic and concrete materials.
  • Cracks in welds and crack propagation by creep or fatigue.
  • Local approach of fracture mechanics and dynamic fracture.
  • Fatigue and creep issues including thermal and environmental effects.
  • Simplified methods.
  • Assessment of steel components (reactor vessels, piping systems, etc.).
  • Leak-before-break assessment/break exclusion.
  • Crack arrest, residual stress, probabilistic damage evaluation and fuel integrity. 

Division III - Computation, Simulation and Visualization

  • Computational methods for linear and nonlinear analysis including:                                                                                        
    • Simulation of inelasticity, material damage, large deformations, and large displacement,                            
    • Simulation of impact, seismic soil-structure interaction, creep damage, vibrations, and blast.                                     
    • Simulation of turbulence, fluid dynamics, flow-induced vibrations, thermal hydromechanics, and fluid-structure interaction.       
  • Computer-aided engineering and information technology.                                                                  
  • Computer software and control of errors.
  • Verification and validation.
  • Application of multi-scale material modelling.                                                                                                                                  

Division IV - External, Internal Hazards, and Loads Characterization

  • Probabilistic and deterministic definition and consideration of uncertainties of design and beyond-design loads for critical facilities caused by:
    • normal operations, operational occurrences, accidental events and severe accidents
    • earthquakes, tornadoes, high winds, floods, fire, hydrodynamic loads, blast, temperature and environmental effects, (hydrogen/vapor deflagration/detonation, steam generator tube rupture, reactor activity flooding, etc.)
    • aircraft impact, missile impact, impulsive loads, flow-induced vibrations.

Division V - Modelling, Testing and  Response Analysis of Structures, Systems and Components

  • Modelling and response analysis of structures (including foundations), systems, lifelines and components subjected to extreme loads.
  • The use of implicit and explicit approaches for solution of numerical simulations – needs and limitations.
  • Reduced scale and large scale structural testing.

Division VI - Design Issues, Codes & Standards

  • Addressing Design Margins in current codes & standards.
  • Acceptance criteria for Operational States (Normal Operation and Anticipated Operational Occurrences) and Accident Conditions (Design Basis Accidents and Design Extension Conditions).
  • Design Codes & Standards and Regulatory documents.
  • Design code harmonization.
  • The use of code design criteria in the FE analysis and design software chain.

Division VII - Safety, Reliability, Risk and Safety Margins

  • Reliability of structures, systems and components.                                                                                                                                                
  • Application of probabilistic methods to improve design, operation and safety of complex systems.
  • Probabilistic safety assessment (PSA) for Internal and external events.
  • PSA and margin studies.
  • Development of risk-informed approaches and risk-based regulations, codes and standards.
  • Human factors engineering.
  • Failure mode analysis.

Division VIII - Issues Related to Operations, Inspection and Maintenance

  • Life cycle management including inspection, instrumentation, online monitoring and diagnostic, maintenance, repair and replacement.
  • Life and service prediction, reliability, availability, deterministic and probabilistic integrity risk assessment.
  • Utility and regulatory perspectives on periodic safety reviews, license renewal, safety and economic issues.
  • Non-destructive examination (NDE) methods and techniques for structural integrity assessments, reliability and validation of NDE methodologies, and NDE training.
  • Operational feedback and lessons learned and Operation, codes and standard.

Division IX - Fuel Cycle Facilities, Waste Management and Decommissioning

  • Siting, design and construction of fuel cycle facilities including fuel storage, fuel racks and dry storage.
  • Evaluation of existing facilities by Risk-informed and performance-based considerations and Probabilistic safety assessment.
  • Issues related to long-term and short-term waste storage and transportation.
  • Deep Geological Repositories (DGRs).

Division X - Advanced and Small Modular Reactors

  • Siting, design and construction programs for small modular reactors including research reactors, advanced, generation IV and fusion reactors.
  • Performance and behavior of components in high-temperature environment and Thermal hydromechanics.
  • Design governing accidents and design criteria for small modular reactors including research reactors, advanced, generation IV and fusion reactors.
  • Regulatory framework, safety research and development and adequacy of codes and standards.

Division XI - Severe Accident Management and Structural Evaluation

  • Management of severe accidents.
  • Response of nuclear power plant components under severe accident conditions.
  • Phenomenology of core degradation and progression of core damage from initial fuel degradation to core-concrete interaction.
  • Evaluate of the integrity and ultimate failure of fission product boundaries.
  • Thermal hydraulic response of the reactor, containment and auxiliary buildings under severe accident conditions.
  • Means to address epistemic uncertainties in developing robust severe accident management guidance.

Division XII - Construction Management, Cost, and Scheduling

  • Manufacturing and construction of fuel and core structure, pressure vessel; steel and concrete containment structures; other concrete structures (storage, processing, etc.); piping and major components, fuel cask design.
  • Capacity, ductility, redundancy and quality considerations.
  • Construction management.
  • Quality assurance and supplier oversight.
  • Additive technologies.
  • Construction cost and schedule.