The presence of hydrogen is known to accelerate the growth of fatigue cracks in steels. Prior work has suggested that hydrogen disrupts the formation of dislocations at the microscale and causes a localisation of plastic flow ahead of the crack tip at the mesoscale.
Within the past ten years, the availability of digital imaging hardware and powerful image processing algorithms has led to the wide diffusion of strain mapping techniques like Digital Image Correlation (DIC).
Bone fracture affects millions of people’s life worldwide. In UK alone, there are approximately more than 850,000 new fractures each year, and the estimated annual cost for bone fracture related treatment reached more than £2 billion.
Understanding mechanical properties and performance of various biological materials and tissues and their responses to different loading and environmental conditions is becoming increasingly important for development of new medical procedures and devices.
Fracture in science and technology is understood as the total or partial separation of an originally intact body or structure. This phenomenon may have destructive effects on structures and lead to catastrophic failures, with high economic consequences or, in the worst case, loss of lives.