Study of the acoustic fields of Rayleigh waves generated by growing cracks

Physical models have been developed to describe the radiation of Rayleigh w aves by normal fatigue cracks at and near the surfaces of materials during the growth of the cracks. A corresponding set of programs is used to study the main laws governing the radiation of Rayleigh waves by these sources. T he relations that are obtained can be used to develop test methods based on acoustic emission (AE) for applications in which the main goal is to obtai n an AE signal from the most dangerous surface cracks.