マルコフ過程を用いた粒状体の力学モデル (2)

Abstract

In the previous paper the author proposed a mechanical model of particulate materials as aMarkov process and explained the concepts of the potential barrier and the potential slip planewhich are introduced in the proposed model. Furthermore, the strain of particulate materialswas defined by using the change of contact angles at the contact points of particles and the dis-continuous motion of particles.In this paper the results of shearing tests obtained by the modified triaxial apparatus whichis designed and constructed, and can generate three different principal stresses are presented.The results of numerical experiments which are carried out by using the proposed model arealso presented. From both results it is shown that the proposed model can versatilely follow themechanical behaviours of particulate materials such as sands with complicated stress paths include-ing the stress reverse and repeated loading.