Although it is well known that Al-Zn-Mg-Cu alloys are susceptible to intergranular environment-assisted cracking (EAC) in some temper conditions, the relative contribution of hydrogen embrittlement (HE) and anodic dissolution (AD) to the crack advance process remains uncertain. This work reports the results of combining experimental and modeling data of crack potentials to help elucidate the ro...

The effect of the specimen (or component) thickness has been shown to have a significant effect on closure behaviour and this seems to be related to the relative size of the plastic zone. Real cracks are inherently three-dimensional; plane stress-like behaviour is found close to the region where the crack front intersects the free surface, whereas most of the crack front will experience somethi...

A comprehensive theoretical model of radar backscatter from the ocean surface is discussed. It combines alternative models of the interaction between the wind and the sea surface, and different descriptions of the ocean waveheight spectrum of wind seas, with two alternative scattering theories, namely the composite-surface model and the integral equation method. The effects of swell, limited fe...