Study of the Stress-Strain State (SSS) and the Type of Stress State of a Model Closed Wing of an Airplane by the Using Speckle Interferometry

The paper studies the stress-strain state (SSS) of a model closed wing of an airplane by the method of experimental calculation analysis using speckle holographic interferometry. As a result of the study of the SAT model of the wing, reveal and clearly demonstrate the capabilities of experimental-computational analysis using speckle holography. An experimental study of the stress-strain state of structures was carried out using an experimental loading device. An algorithm has been developed for the experimental-calculated analysis of the stress-strain state of structures using speckle holography and the results of studies are demonstrated using the example of an experimental loading device. The research results can be used to develop the concept of the power circuit of an aircraft with a closed wing system, which is considered structurally one of the most promising, as it has many potential advantages associated with reducing its weight, increasing the rigidity of the structure and reducing its deformations, with the ability to directly control the lifting and lateral forces.