000014355 001__ 14355
000014355 005__ 20161115100149.0
000014355 04107 $$aeng
000014355 046__ $$k2016-08-21
000014355 100__ $$aCheng, Zhuang
000014355 24500 $$aa study on particle stress evolution in biaxial test

000014355 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014355 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014355 506__ $$arestricted
000014355 520__ $$2eng$$aThis paper examines the evolution of particle stress inside uncrushable granular materials in biaxial test using DEM and probabilistic method. It is found that the magnitude of normalized maximum shear stress inside particles have a nearly unified probability distribution at different loading stages, while the orientation shows increasing anisotropy with the rising of stress ratio. For samples with different initial void ratios but the same grading, the magnitude of normalized maximum shear stress probability density function can be approximately expressed by a two-parameter Weibull distribution function, in which the scale parameter and shape parameter are affected by sample grading, showing better grading samples having lower probability of high maximum shear stress. Second order Fourier series can be used to approximate probability density functions of the maximum shear stress orientation.

000014355 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014355 653__ $$a

000014355 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014355 720__ $$aCheng, Zhuang
000014355 8560_ $$ffischerc@itam.cas.cz
000014355 8564_ $$s199847$$uhttps://invenio.itam.cas.cz/record/14355/files/PO.SM15-1.03.196.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2933, code PO.SM15-1.03.196
.
000014355 962__ $$r13812
000014355 980__ $$aPAPER