Anders Ekberg
Anders Ekberg's research mainly focuses on material deterioration, especially fatigue and failure of trains and track. The goal is to enhance understanding and predictive models to improve design and predictive maintenance. An important aspect is to analyse operational data and relate these to progressive deterioration of tracks and vehicles. This is valuable in preventing failures and improve planning of maintenance and reinvestments as part of asset management. For a complex and sensitive system as the railway, these are crucial aspects since unplanned operational disturbances have major detrimental effects. In addition, the ability to prevent distrbances and operational disruptions allow high economic and environmental savings.
Showing 161 publications
Characterisation of track buckling resistance
Relating the influence of track properties to axle load spectra through onboard measurements
Rail machining - current practices and potential for optimisation
Innovative requirements and evaluation methods for slab track design
Rail and wheel health management
Probability of rail break caused by out-of-round wheel loads
Influence of railway wheel tread damage on wheel–rail impact loads and the durability of wheelsets
Numerical prediction of railhead rolling contact fatigue crack growth
Influence of wheel and rail deterioration on wheelset fatigue life
Probability of instant rail break induced by wheel–rail impact loading using field test data
NUMERICAL PREDICTION OF ROLLING CONTACT FATIGUE CRACK GROWTH IN A RAILHEAD
Prediction of axle fatigue life based on field measurements
A method for in-field railhead crack detection using digital image correlation
RAIL AND WHEEL HEALTH MANAGEMENT
SIMULATION-BASED EVALUATION OF THE PROBABILITY OF RAIL-BREAK DUE TO OUT-OF-ROUND WHEEL LOADS
Railway wheelset fatigue life estimation based on field tests
More robust switches through improved control of the switch rail
Cracks in turnout sleepers -- Conclusions from a questionnaire to the UIC Track Expert Group
Risk of fatigue of train car chassis due to pressure waves between meeting trains
Evaluation of mixed-mode crack growth direction criteria under rolling contact conditions
Digitalisation of condition monitoring data as input for fatigue evaluation of wheelsets
Multiscale modelling of train–track interaction phenomena with focus on contact mechanics
Mechanical deterioration of wheels and rails under winter conditions – mechanisms and consequences
Rolling contact fatigue assessment of repair rail welds
Evaluation of crack growth direction criteria on mixed-mode fatigue crack growth experiments
Surface damage of wheels and rails: similarities, differences and effective mitigation strategies
The role of contact mechanics in multiscale modelling of train-track interaction phenomena
Evaluation of mixed-mode crack growth criteria under rolling contact conditions
Numerical investigation of crack initiation in rails and wheels affected by martensite spots
Rolling contact fatigue assessment of repair rail welds
Upgrading of freight railways to meet operational and market demands
Stress intensity factor evaluation for rolling contact fatigue cracks
Mechanical deterioration of wheels and rails under winter conditions – mechanisms and consequences
Estimation of gauge corner and flange root degradation from rail, wheel and track geometries
Stress gradient effects in surface initiated rolling contact fatigue of rails and wheels
The influence of corrugation on frictional stress at the rail-wheel interface
Temperature-dependent evolution of the cyclic yield stress of railway wheel steels
Rolling contact fatigue, wear and broken rail derailments
Stress gradient effects in surface initiated rolling contact fatigue of rails and wheels
Rolling contact fatigue, wear and broken rail derailments
Thermomechanical cracking of railway wheel treads: a combined experimental and numerical approach
Allowable wheel loads, crack sizes and inspection intervals to prevent rail breaks
Gauge corner and flange root degradation estimation from rail, wheel and track geometry
Temperature-dependent evolution of the cyclic yield stress of railway wheel steels
The development of a crack propagation model for railway wheels and rails
Färdplan för ökad forskning och innovation inom underhåll av järnvägsfordon
D-RAIL Deliverable 6.1 — Analysis of tests for the validation of numerical simulations
Tread braking – fatigue life of railway wheel webs
Numerical assessment of the influence of worn wheel tread geometry on rail and wheel deterioration
Wheel/rail rolling contact fatigue – Probe, predict, prevent
Järnvägen igår, idag, imorgon – hur forskning kan användas
The influence of track geometry irregularities on rolling contact fatigue
Surface fatigue initiated transverse defects and broken rails -- an International Review
Identifying the root causes of damage on the wheels of heavy haul locomotives and its mitigation
Identifying the root causes of damage on the wheels of heavy haul wheel damage phenomena
D-RAIL Deliverable D3.3 — Guidelines on derailment analysis and prevention
D-RAIL Deliverable D3.2 — Analysis and mitigation of derailment, assessment and commercial impact
Deterioration of insulated rail joints – a three-year field study
The influence of track geometry irregularities on rolling contact fatigue
Wheel/rail rolling contact fatigue - probe, predict, prevent
Modelling the thermomechanical wheel–rail interface during rolling contact
THERMO-MECHANICAL CRACKING OF RAILWAY WHEEL
Thermal Cracking of a Railway Wheel Tread due to Tread Braking – Critical Crack Sizes
The EU-project INNOTRACK – a description of highlights and how they have been implemented
On-board measurements of particulate matter emissions from a passenger train
Emissions of particulate matters from railways – emission factors and condition monitoring
Railway axle design – to be based on fatigue initiation or crack propagation?
Results to exemplify the joint EU-project INNOTRACK - Innovative Track systems
Timber replacement sleepers — ensuring lateral track stability
Cutting the life-cycle cost of track
An Arbitrary Lagrangian Eulerian Formulation For Simulation Of Wheel-Rail Contact
Rolling contact fatigue prediction for rails and comparisons with test rig results
INNOTRACK Deliverable D4.3.7, Innovative laboratory tests for rail steels – Final report
Railway axle design – to be based on fatigue initiation or crack propagation?
Predicting crack growth and risks of rail breaks due to wheel flat impacts in heavy haul operations
INNOTRACK Deliverable D4.3.8, Innovative laboratory tests for rail steels
Assessing risks of subsurface initiated rolling contact fatigue from field measurements
Alarm limits for wheel–rail impact loads – part 1: rail bending moments generated by wheel flats
Analysis of static fractures of rails due to wheel flats
Emissions of particulate matter from railways – onboard and tunnel measurements
A numerical study of the mechanical deterioration of insulated rail joints
Results to exemplify the joint EU-project INNOTRACK – Innovative track systems
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing
Alarm limits for wheel–rail impact loads – part 2: analysis of crack growth and fracture
The detrimental effects of hollow wear – field experiences and numerical simulations
Subsurface initiated rolling contact fatigue of railway wheels as generated by rail corrugation
The influence of vertical load transients on wheel and rail deterioration
Bainitic steel grade for solid wheels: metallurgical, mechanical and in-service testing
Predicting Crack Growth and Risks of Rail Breaks due to Wheel Flat Impacts in Heavy Haul Operations
Larmgräns för hjulskadedetektorer – En utredning av risk för rälbrott på Malmbanan
Lateral spårstabilitet -- slutrapport
Realtidsanalys av utmattningspåkänning från uppmätta spårkrafter
Isolerskarvar – jämförelse mellan 4 mm och 8 mm skarvöppning
Index for real-time prediction of sub-surface initiated rolling contact fatigue in railway wheels
Innovative bainitic steel grade for solid wheels tested in arctic heavy haul operations
Developing hollow wear limits based on field experience and numerical simulations
Material defects in rolling contact fatigue of railway wheels -- the influence of defect size
Contact Mechanics and Wear of Rail/Wheel Systems
Influence of short-pitch wheel/rail corrugation on rolling contact fatigue of railway wheels
Fatigue of railway wheels and rails under rolling contact and thermal loading -- an overview
Answer to the letter to the editor by M Ciavarella and H Maitournam
Railway track stability – a state of-the-art survey
Spårstabilitet - en introduktion för bantekniker
Predicting fretting fatigue of railway wheel-axle assemblies – a state of-the-art survey
Integrated analysis of dynamic train–track interaction and rolling contact fatigue
A new CAE procedure for railway wheel tribological design
Integrating rolling contact fatigue analysis with simulation of dynamic train–track interaction
Researchers on the track of wheel-rail interaction
Fatigue initiation in railway wheels — a numerical study of the influence of defects
An engineering model for rolling contact fatigue
LABFEM - Lateral Buckling of Beams Calculated by the Finite Element Method, Theory and Manual
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Showing 23 research projects
A holistic model of wheel tread life
Reduced material consumption in railway operations (SP38)
Förbättrade regler för att minska spårskador och trafikstörningar orsakade av skadade järnvägshjul
Teknisk riskanalys för urspårning med fokus på spårviddsminskning i spårväxlar
Driving research and innovation to push Europe's rail system forward (IN2TRACK3)
Growth of rolling contact fatigue cracks (CHARMEC MU38)
Research into enhanced track and switch and crossing system 2 (In2Track-2)
Fr8Rail-2 Digitalization and Automation of Freight Rail (CHARMEC EU20)
Train driving simulation as a tool to reduce railway particle emissions
Research into enhanced tracks, switches and structures (In2Track)
Design criteria for slab track structures (CHARMEC TS19)
Simulation of rolling contact fatigue crack growth in rails
Banöverbyggnad - en holistisk optimering av design och underhåll för ökad prestanda
Improved criterion for surface initiated RCF (CHARMEC MU22)