Auteur Chang, Ching S.
Documents disponibles écrits par cet auteur (9)
Affiner la recherche
Article : texte imprimé
Ji, Shunying, Auteur ; Chang, Ching S., Éditeur scientifique ; Shen, Hayley H., Auteur |The contact force model consisting of a linear spring dashpot with a frictional glider has been widely adapted to simulate granular flows. Real contact mechanics between two solid bodies is very complicated. Extensive theoretical and experimenta[...]
Article : texte imprimé
Lancelot, Laurent, Auteur ; Shahrour, Isam, Auteur ; Al Mahmoud, Marwan ; Chang, Ching S., Éditeur scientifique |Analysis of geotechnical problems concerned by low confinement such as design of shallow foundations and analysis of slope stability and soil liquefaction requires modeling of the soil behavior at low stresses. This note includes a laboratory s[...]
Article : texte imprimé
Vidal, P., Auteur ; Couto, A., Auteur ; Ayuga, F. ; Guaita, M. ; Chang, Ching S., Éditeur scientifique |The Influence of hopper eccentricity on silo discharge has always concerned researchers. Eccentric discharge brings about asymmetries in the distribution of normal pressures, the values of which are not known with precision. This study presents [...]
Article : texte imprimé
Tang-Tat Ng, Auteur ; Chang, Ching S., Éditeur scientifique |This paper presents a sensitivity analysis of the input parameters of a program based on the discrete element method (DEM). Triaxial compression simulations were conducted on an assembly of ellipsoids with two particle shapes. We examine four in[...]
Article : texte imprimé
Chang, Ching S., Auteur ; Zhen-Yu Yin, Auteur |In this paper, a description of inherent anisotropy of soil, based on micromechanics framework, is presented. The problem is formulated by assuming that sliding of two contact particles governed by Coulomb criterion in which the friction angle i[...]
Article : texte imprimé
Suiker, Akke S. j., Auteur ; Chang, Ching S., Auteur ; Ooi, J. Y., Éditeur scientifique |A Novel mesoscale granular continuum model is derived by homogenizing the mechanical behavior of six particles in contact forming an octahedron structure. The elastic behavior at the particle contacts is simulated in accordance with Hertz theory[...]
Article : texte imprimé
Chang, Ching S., Auteur ; Zhen-Yu Yin, Auteur |Experimental results show very different stress-dilatancy behavior for sand under compression and extension loading conditions. In order to describe the behavior in both compression and extension conditions, two separate dilatancy equations are [...]
Article : texte imprimé
Minna Karstunen, Auteur ; Chang, Ching S., Auteur |The paper focuses on investigating the destructuration process during time-dependent stress-strain evolution. For this purpose, various oedometer tests and triaxial tests on intact and reconstituted samples of soft sensitive Vanttila clay were c[...]
Article : texte imprimé
Qingli Dai, Auteur ; Zhanping You, Auteur ; Chang, Ching S., Éditeur scientifique |This study presents micromechanical finite-element (FE) and discrete-element (DE) models for the prediction of viscoelastic creep stiffness of asphalt mixture. Asphalt mixture is composed of graded aggregates bound with mastic (asphalt mixed wit[...]
