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Metal Magnetic Memory Method
Energodiagnostika
Metal Magnetic Memory Method
News
January 15, 2020
Positive reviews on the book by V.T. Vlasov and A.A. Dubov “Physical Bases of the Metal Magnetic Memory Method” were received from the leading Russian universities
May 23, 2019
Meeting of Specialist International Group on the metal magnetic memory method of the International Committee for Non-Destructive Testing
May 23, 2019
Third International Conference on Diagnostics of Structures and Components Using Metal Magnetic Memory Method. May 22-23, 2019, Prague, Czech Republic

Book "Physical Theory of the Strain-Failure Process. Part I. Physical criteria of the limiting states of the metal"

UDC 620:539.4:669.017:669.001

ISBN 5-8122-0265-6

Publisher - ZAO "TISSO", Moscow, 2007, 517 p.

The book "Physical Theory of the Strain-Failure Process. Part I. Physical criteria of the limiting states of the metal" is developed by candidate of technical sciences V.T. Vlasov and by Dr., professor of the "Power equipment repairs and modernization" Chair of the Institute of State Employees’ Qualification Improvement A.A. Dubov.

Based on the analysis of long-term experimental investigations of various industrial objects using the metal magnetic memory method and on the analysis of reasons for low effectiveness of available stress control methods, disagreement of diagnostic results with established ideas about internal stress characteristics is revealed.

Basic provisions of the materials resistance theory are considered and their misuse at solution of equipment’s residual life estimation problems is demonstrated. Delusiveness of ideas about existence of principal axes and principal stresses is proved. Capabilities and principal limitations of macroscopic theories of plasticity, yielding and creep at stressed states calculations are analyzed. The physical definition of the concept of "internal stresses" is provided.

The physical definition of a structural element as an integral characteristic of the material’s energy state is given for the first time. Analytical correlation of local physical parameters of the structural element straining with real mechanical macro characteristics of the material is established. Physical criteria of the limiting state of products’ material are determined.

Bases of the physical theory of the "strain - failure" process are developed. This theory will ensure objective effectiveness evaluation of various stress-strained state inspection methods, strength calculations and equipment life prediction. It will allow providing scientific grounding of defects admissibility norms and the degree of their hazard in non-destructive testing, as well as more effective solution of other problems of fracture mechanics.

The book is intended for specialists in non-destructive testing, engineering diagnostics, scientific officers, students of Higher Educational Establishments, engineering personnel of machine-building enterprises and various industries dealing with reliability assurance at equipment and structures operation.

Energodiagnostika Co. Ltd is the main developer of a principally new non-destructive testing method and inspection instruments based on the metal magnetic memory (MMM)
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