The present decade is opening new frontiers in high-energy astrophysics. After the X-ray satellites in the 1980's, including Einstein, Tenma, EXOSAT and Ginga,

Fracture is a major cause of failure in metallic and non-metallic materials and structures. An understanding of the micro- and macro- mechanisms of fracture ena

Testing of composite materials can present complex problems but is essential in order to ensure the reliable, safe and cost-effective performance of any enginee