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S. S. Volkov, V. V. Struzhanov

MODELING OF A COMPLETE DEFORMATION DIAGRAM FOR MATERIALS WITH PROPERTIES OF AUXETICS

A two-level model of a material with random deformation and strength properties of microstructure elements is used. The damage of microstructure elements with random levels of porosity is considered. The microstructural strength condition is defined by the distribution density of random critical strains. The calculation of the descending branch of the complete deformation diagram is performed with regard for the negative coefficient of transverse deformation of the material. The influence of the microstructure properties on the strain-stress relationship of the material is demonstrated.

Keywords: microstructure, random properties, complete deformation diagram, damage, failure

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Founder:  Institute of Engineering Science, Russian Academy of Sciences (Ural Branch)
Chief Editor:  S.V. Smirnov
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