000014911 001__ 14911
000014911 005__ 20161115100206.0
000014911 04107 $$aeng
000014911 046__ $$k2016-08-21
000014911 100__ $$aKang, Wenting
000014911 24500 $$aExperimental and theoretical study about depth-dependent drag force in granular matter

000014911 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014911 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014911 506__ $$arestricted
000014911 520__ $$2eng$$aA material testing machine was used to experimentally measure the quasistatic force acting on the bottom of cylinders that slowly and continuously move along its symmetric axis downwards into a granular medium. By utilizing different cylinders to plunge into different granular materials, we demonstrate that the normalized average pressure [pu ] acting on the cylinder’s bottom linearly increases with the penetration depth, while the linear scale-factor kh just depends on the internal friction angle of the granular material. To theoretically figure this out, we employ Prandtl’s Slip-Line(PSL) theory to analyze the stress field of the plastic region involved in the granular matter. The theoretical model also suggests that [pu ] should be linearly related to the penetration depth, and kh can be computed theoretically. Good agreement between the computed values and the experimental results of kh sheds light on the way of the continuum description for the granular material behaviours.

000014911 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014911 653__ $$a

000014911 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014911 720__ $$aKang, Wenting
000014911 8560_ $$ffischerc@itam.cas.cz
000014911 8564_ $$s83589$$uhttps://invenio.itam.cas.cz/record/14911/files/TS.FS08-3.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 3369, code TS.FS08-3.03
.
000014911 962__ $$r13812
000014911 980__ $$aPAPER