Paper Title
Study of Deformations of Material Under Cyclic Stresses using Speckle Holography

Abstract
The paper presents the study of deformations of materialespecially thestress concentrated area (fracture zone) causedby cyclic stresses by usingthe speckle interferometry. As a result, the physical structureof the materialinits fracture zonecan be analyzed more precisely. Keywords - Speckle Interferometry, Stress Concentration, Material Fatigue, Cyclic Tests.