Page 66 - The Combined Finite-Discrete Element Method

IMPLEMENTATION DETAILS FOR DISCRETISED CONTACT FORCE IN 2D 49

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Figure 2.12 Predicted transient motion sequence for heap B.

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Figure 2.13 Predicted transient motion sequence for heap C.

The later stages of transient motion clearly indicate separation of individual fragments
from each other and transition towards the stage where no two fragments are in contact
(Figure 2.14). The reason for this is that the heap is not confined in space, and the motion
of fragments is almost free except for interaction with one other.