Theory of short-term and long-term resistance of structures based on the principle of plastic fracture

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Abstract

The authors analyze the theory used in many countries, containing two independent directions: 1) the theory of stability of rod systems, including flat frames; 2) the theory of calculation of structural elements from various materials. The main feature of these theories is the application of the principle of plastic fracture. The assumption about a plastic hinge, due to the inconsistency with the experimental data, is supplemented by the incorrect application of theories of infinite elastic deformations, as well as of infinite creep deformations, which are incompatible with this hinge. Using the rules of mathematics, the principles of mechanics and the results of reliable experiments, it has been revealed that the analyzed theory contains several theories for different applications that reject each other, including the erroneous ones.

About the authors

Alexander D. Beglov

Administration of St. Petersburg

Email: gubernator@gov.spb.ru
Doctor of Economics, Governor of St. Petersburg St. Petersburg, Russian Federation

Rudolf S. Sanzharovskiy

Eurasian National University named after L.N. Gumilev

Email: milasanj@gmail.com
ORCID iD: 0000-0002-7412-3789

Doctor of Technical Sciences, Professor, Chief Scientific Associate

Astana, Republic of Kazakhstan

Tatyana N. Ter-Emmanuilyan

Russian University of Transport

Author for correspondence.
Email: tanya_ter@mail.ru
ORCID iD: 0000-0002-4723-8193

Doctor of Technical Sciences, Professor, Department of Theoretical Mechanics

Moscow, Russian Federation

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Copyright (c) 2023 Beglov A.D., Sanzharovskiy R.S., Ter-Emmanuilyan T.N.

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