- Fatigue and fracture mechanics
- Structural Load-Bearing Analysis
- Mechanical stress and fatigue analysis
- Railway Engineering and Dynamics
- Railway Systems and Energy Efficiency
- Engineering Structural Analysis Methods
- Mechanical Behavior of Composites
- Transport and Economic Policies
- Transportation Safety and Impact Analysis
- Numerical methods in engineering
- Non-Destructive Testing Techniques
- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Mechanical Failure Analysis and Simulation
- Cellular and Composite Structures
- Particle accelerators and beam dynamics
- Vehicle emissions and performance
- Structural Response to Dynamic Loads
- Fire effects on concrete materials
- Arctic and Antarctic ice dynamics
- Structural Health Monitoring Techniques
- Structural Behavior of Reinforced Concrete
- Electric and Hybrid Vehicle Technologies
- Ultrasonics and Acoustic Wave Propagation
- Material Properties and Failure Mechanisms
New York University
2024
Medscape
2018-2022
Imperial College London
2009-2021
Royal Academy of Engineering
1998-2009
Ninewells Hospital
2009
Babcock & Wilcox (United States)
2002
University of Sheffield
1990-2001
Micro Focus (United States)
1996
British Medical Association
1992
University of Cambridge
1977-1988
The history of railway axle design against fatigue is reviewed through a discussion several notable accidents caused by broken axles. earliest prompted research into which resulted in phenomenological understanding. In the last 50 years, largely directed towards aircraft industry, has been recognized to be process involving crack initiation and propagation. Fracture mechanics now used assist timing inspection intervals, but small number failures still occur. paper concludes with short modern...
Abstract The elastic stress intensity factor is a parameter used in fracture mechanics to describe conditions the vicinity of tip sharp crack. By superimposing solutions factors for different loading conditions, equations are derived which model crevasses ice. Solutions presented theoretical depth isolated crevasses, free from or partially filled with water. Close agreement exists previous calculation by Weertman using technique. effect crevasse spacing investigated and it demonstrated that...
A combination of a rapidly increasing world population and an energy-intensive lifestyle has led to doubts about the sufficiency natural resources. The waste products these economic activities have become large enough change climate globe. demand for transport is characterized by exponential increase tendency choose faster modes. These facts give rise concerns sustainability present practices. While railways presently offer significant environmental advantages over other modes transport,...
ABSTRACT The importance of the wheel–rail interface to safe operation railways is discussed. Some aspects history rails and wheels are introduced. Several recent accidents involving described. great operating both vehicles track as a system emphasized, together with necessity maintaining in good condition.