This article describes an approach that makes it possible to substantiate quality control criteria and methods to improve strengthening technologies. The approach was used to test the quality of products made using these technologies and analyze different strengthening methods applied to structural materials. In the experiment, samples of welded joints subjected to various types of strengthening were used that underwent acoustic emission (AE) testing. The results of quick evaluations produced by the proposed multilevel model of acoustic pulse flow were compared with the results of long-term cyclic tests to make a conclusion about the effectiveness of the approach being discussed. To improve strengthening quality control, a method is proposed that can be applied to complex and large-sized structures in the construction industry.

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The problems of modeling the fracture process under conditions of plastic restructuring of the material structure, the transformation of the strength state of the material of plastically deformable workpieces into the state of the product material, the acoustic emission assessment, which determines the defectiveness of the final product of the predisposition of the workpiece defects to development during the rolling process, are considered.

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