Open AccessДиссипация механической энергии в осциллирующем адгезионном контакте между жестким индентором и эластомером
Author(s) -
Я.А. Ляшенко,
В.Л. Попов
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.21.50197.18431
Subject(s) - hysteresis , amplitude , indentation , mechanics , materials science , surface (topology) , optics , physics , composite material , condensed matter physics , geometry , mathematics
A model of hysteresis in an adhesive contact under oscillating loading is proposed, based on the chemical inhomogeneity of the indenter surface. Results of numerical simulation are compared with experimental data obtained with a setup allowing direct observation of the dynamics of contact area. It is shown that the hysteresis almost disappears if the amplitude of the oscillating load is smaller than a critical value depending on the maximum indentation depth.