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УДК 539.4+620.1

 

Grabovskij A., Babiyenko І., Bondarets O.

National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

 

KINETIC OF DAMAGE ACCUMULATION IN REPEATED-VARIABLE THE AXIAL LOAD OF STRUCTURAL MATERIALS


The paper presents a microdefects closure effect at the direct tension and feedback compression (stress control test and strain control test ). It should be noted that low-plasticity materials microdefects closure parameter rates less than the high-plastic materials. The resulting method of determining the microdefects closure parameter at direct tension and feedback compression; obtained the experimental results of determining the microdefects closure parameter of structural materials - D16T, 30KhGSA steel, 45 steel, copper, steel 12X18H10T. A generalization of the curves for the determination of the microdefects closure parameter for the elastic-plastic tensile and feedback compression to plastic materials with different properties.

Keywords: closure effect, direct tension, feedback compression, low-plasticity, microdefects, elastic-plastic tensile, feedback compression

 

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