Formulation of a rhree-dimensional numerical manifold method with tetrahedron and hexahedron elements

Yung Ming Cheng, Y. H. Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

Numerical Manifold Method (NMM) is an extension of Discontinuous Deformation Analysis which contains and combines FEM and joint/block oriented DDA in a unified form. At present, application of NMM is mainly limited to two-dimensional analysis which is not realistic for many underground excavation works. In the present paper, three-dimensional NMM based on tetrahedron and hexahedron elements is proposed. The corresponding three-dimensional cover contact detection algorithms which have some fundamental properties different from the corresponding two-dimensional analysis are also developed. Based on the present formulations, engineering problems with arbitrarily oriented discontinuities can be modeled and realistic modeling of construction works becomes possible.
Original languageEnglish
Pages (from-to)601-628
Number of pages28
JournalRock Mechanics and Rock Engineering
Volume41
Issue number4
DOIs
Publication statusPublished - 1 Aug 2008

Keywords

  • Contacts
  • Discontinuous deformation analysis
  • Joints
  • Manifold method

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Geology

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