Anders Ekberg
Anders Ekberg's research mainly focuses on material deterioration and fatigue of trains and track. The goal is to enhance understanding and predictive models to improve design and 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, this are crucial aspects since unplnanned operational disturbancies have major detrimental effects.
Showing 147 publications
Probability of instant rail break induced by wheel–rail impact loading using field test data
Prediction of axle fatigue life based on field measurements
A method for in-field railhead crack detection using digital image correlation
More robust switches through improved control of the switch rail
Influence of wheel and rail deterioration on wheelset fatigue life
Railway wheelset fatigue life estimation based on field tests
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
Evaluation of crack growth direction criteria on mixed-mode fatigue crack growth experiments
Mechanical deterioration of wheels and rails under winter conditions – mechanisms and consequences
Rolling contact fatigue assessment of repair rail welds
Surface damage of wheels and rails: similarities, differences and effective mitigation strategies
Numerical investigation of crack initiation in rails and wheels affected by martensite spots
Rolling contact fatigue assessment of repair rail welds
Evaluation of mixed-mode crack growth criteria under rolling contact conditions
The role of contact mechanics in multiscale modelling of train-track interaction phenomena
Upgrading of freight railways to meet operational and market demands
Mechanical deterioration of wheels and rails under winter conditions – mechanisms and consequences
Stress intensity factor evaluation for rolling contact fatigue cracks
Stress gradient effects in surface initiated rolling contact fatigue of rails and wheels
Rolling contact fatigue, wear and broken rail derailments
The influence of corrugation on frictional stress at the rail-wheel interface
Temperature-dependent evolution of the cyclic yield stress of railway wheel steels
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
Rolling contact fatigue, wear and broken rail derailments
Thermomechanical cracking of railway wheel treads: a combined experimental and numerical approach
Temperature-dependent evolution of the cyclic yield stress of railway wheel steels
Färdplan för ökad forskning och innovation inom underhåll av järnvägsfordon
The development of a crack propagation model for railway wheels and rails
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
Numerical assessment of the influence of worn wheel tread geometry on rail and wheel deterioration
The influence of track geometry irregularities on rolling contact fatigue
Surface fatigue initiated transverse defects and broken rails -- an International Review
D-RAIL Deliverable 6.1 — Analysis of tests for the validation of numerical simulations
Tread braking – fatigue life of railway wheel webs
Wheel/rail rolling contact fatigue – Probe, predict, prevent
Järnvägen igår, idag, imorgon – hur forskning kan användas
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 D3.2 — Analysis and mitigation of derailment, assessment and commercial impact
D-RAIL Deliverable D3.3 — Guidelines on derailment analysis and prevention
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
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
THERMO-MECHANICAL CRACKING OF RAILWAY WHEEL
On-board measurements of particulate matter emissions from a passenger train
Timber replacement sleepers — ensuring lateral track stability
An Arbitrary Lagrangian Eulerian Formulation For Simulation Of Wheel-Rail Contact
Railway axle design – to be based on fatigue initiation or crack propagation?
Rolling contact fatigue prediction for rails and comparisons with test rig results
Cutting the life-cycle cost of track
Emissions of particulate matters from railways – emission factors and condition monitoring
Results to exemplify the joint EU-project INNOTRACK - Innovative Track systems
INNOTRACK Deliverable D4.3.7, Innovative laboratory tests for rail steels – Final report
Results to exemplify the joint EU-project INNOTRACK – Innovative track systems
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing
Emissions of particulate matter from railways – onboard and tunnel measurements
Railway axle design – to be based on fatigue initiation or crack propagation?
INNOTRACK Deliverable D4.3.8, Innovative laboratory tests for rail steels
A numerical study of the mechanical deterioration of insulated rail joints
Assessing risks of subsurface initiated rolling contact fatigue from field measurements
Analysis of static fractures of rails due to wheel flats
Predicting crack growth and risks of rail breaks due to wheel flat impacts in heavy haul operations
Alarm limits for wheel–rail impact loads – part 1: rail bending moments generated by wheel flats
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
Larmgräns för hjulskadedetektorer – En utredning av risk för rälbrott på Malmbanan
Subsurface initiated rolling contact fatigue of railway wheels as generated by rail corrugation
Realtidsanalys av utmattningspåkänning från uppmätta spårkrafter
Lateral spårstabilitet -- slutrapport
The influence of vertical load transients on wheel and rail deterioration
Isolerskarvar – jämförelse mellan 4 mm och 8 mm skarvöppning
Index for real-time prediction of sub-surface initiated rolling contact fatigue in railway wheels
Predicting Crack Growth and Risks of Rail Breaks due to Wheel Flat Impacts in Heavy Haul Operations
Bainitic steel grade for solid wheels: metallurgical, mechanical and in-service testing
Developing hollow wear limits based on field experience and numerical simulations
Innovative bainitic steel grade for solid wheels tested in arctic heavy haul operations
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
Material defects in rolling contact fatigue of railway wheels -- the influence of defect size
Predicting fretting fatigue of railway wheel-axle assemblies a state of-the-art survey
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
Integrated analysis of dynamic traintrack interaction and rolling contact fatigue
A new CAE procedure for railway wheel tribological design
Researchers on the track of wheel-rail interaction
Integrating rolling contact fatigue analysis with simulation of dynamic train–track interaction
An engineering model for rolling contact fatigue
Fatigue initiation in railway wheels — a numerical study of the influence of defects
LABFEM - Lateral Buckling of Beams Calculated by the Finite Element Method, Theory and Manual
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Showing 13 research projects
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)