Until now, identification of three‐dimensional non‐convex (concave) blocks has not been accomplished. However, a direct body concept, which is introduced here, can deal with both convex and concave blocks in the same process in connection with detection of individual blocks and computation of physical quantities. Thus, the dilemma in the generalization of identifying three‐dimensional multi‐block systems has been eliminated. The directed body concept used in geometrical identification problems makes it possible to build a novel automatic identification system for three‐dimensional multi‐block systems. This new system eliminates the time‐consuming work on geometrical identification, and copes with a variety of applications in multi‐body systems, such as rock masses.
IKEGAWA, Y. and HUDSON, J.A. (1992), "A NOVEL AUTOMATIC IDENTIFICATION SYSTEM FOR THREE‐DIMENSIONAL MULTI‐BLOCK SYSTEMS", Engineering Computations, Vol. 9 No. 2, pp. 169-179. https://doi.org/10.1108/eb023856
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