Investigation of cracks growth in aerotechnics products on the basis of full-scale tests

In the article the process of tireless destruction and conformities to law of development of fatigue cracks is considered on resource tests the basis of helicopter rotor standards of blades. The video surveys cracks growing of process are conducted in standards during resource model tests. Methodology of cracks recognition is worked out in the aerotechics products and also determinations of geometrical parameters of cracks and their growth rate by means of mathematical methods patterns recognition of theory and washed out great numbers on the basis of COMPUTER. As a result of video recordings processing cracks geometric parameters and speed of their dimensions change are determined. On the basis of obtained data the conclusions are drawn about safe reliable lifetime of engineering objects in which such defects as cracks are present.