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Nanoscience and Technology: An International Journal
ESCI SJR: 0.228 SNIP: 0.484 CiteScore™: 0.37

ISSN Imprimer: 2572-4258
ISSN En ligne: 2572-4266

Nanoscience and Technology: An International Journal

Précédemment connu sous le nom Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanomechanicsSciTechnolIntJ.v2.i3.40
pages 231-253

THE INFLUENCE OF THE STRAIN RATE ON THE STRENGTH OF THE COATING-SUBSTRATE COMPOSITION. NUMERICAL MODELING

Ruslan R. Balokhonov
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russian Federation
V. A. Romanova
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Tomsk
E. A. Schwab
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russian Federation

RÉSUMÉ

Mechanisms of strain and fracture of a coated material are investigated at different rates of tension and compression. The dynamic boundary-value problem in the plane-strain formulation is solved numerically by the finite-difference method. In the calculations the microstructure of the composite is specified explicitly. It is found that macroscopic strength of the composite increases exponentially with the strain rate in compression, and changes but only slightly in tension. It is shown that the higher the strain rate, the less intensive is the coating fracture in compression, and the more intensive is the coating fracture in tension.


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