Tribomechanical analysis of interlayer shear and surface crack nucleation processes in compacted disperse materials

Autor:	V. V. Barsukov, V. G. Barsukov, Bazyli Krupicz
Rok vydání:	2015
Předmět:	Materials science Shear (geology) Mechanics of Materials Ultimate tensile strength Nucleation Perpendicular Right angle Geotechnical engineering Limiting Composite material Surfaces Coatings and Films
Zdroj:	Journal of Friction and Wear. 36:112-117
ISSN:	1934-9386 1068-3666
DOI:	10.3103/s1068366615020026
Popis:	The effect of the internal (interparticle) and external friction on the limiting state generation has been analyzed in terms of the shear-induced failure criterion of the surface layers in the compacted disperse materials. The proposed design scheme based on the Mohr-Coulomb combined diagram has made it possible to develop an original method and derive analytic dependences for determining the normal and tangential stresses in the interlayer shear sites along with the orientation angles of these sites. It has been shown that, with increasing coefficient of external friction, the pressure in the interlayer shear sites reduces until tensile stresses are generated. This is accompanied by the nucleation of the crack at a right angle close to the side surface perpendicular of the formed item.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d9747b4d7493e2e0b05e5d9e0513df35 https://doi.org/10.3103/s1068366615020026 Zobrazit plný text záznamu Full text from SpringerLink