1994
DOI: 10.2208/jscej.1994.483_17 View full text |Buy / Rent full text
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Abstract: The Distinct Element Method (DEM), in which soil is represented as an assembly of numerous discrete particles, does not account for the continuity of the medium. The extended method has another physical structure which represents the effect of the internal material between the particles as mortar of concrete. We simulated the two-dimensional dynamic fracture process of the Cypress Double-Deck Bridge on Interstate 880-Line suffered by the 1989 Loma Prieta earthquake using this method. Results agree well with th… Show more

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“…More appropriate analysis method called as Applied Element Method (AEM) is developed by Meguro and Tagel‐Din, (1998, 2000) and, Tagel‐Din and Meguro, (1999, 2000, 2002) [26, 27, 28, 29 30]. A recent method that deals with structure failure analysis is the Modified or Extended Distinct Element Method, MDEM or EDEM (Meguro and Hakuno, 1989, 1994) 25,26 . It can follow highly nonlinear geometric changes in the structure during failure.…”
Section: Analysis Methodsmentioning
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rupbmjkragerfmgwileyiopcupepmcmbcthiemesagefrontiersapsiucrarxivemeralduhksmucshluniversity-of-gavle
“…More appropriate analysis method called as Applied Element Method (AEM) is developed by Meguro and Tagel‐Din, (1998, 2000) and, Tagel‐Din and Meguro, (1999, 2000, 2002) [26, 27, 28, 29 30]. A recent method that deals with structure failure analysis is the Modified or Extended Distinct Element Method, MDEM or EDEM (Meguro and Hakuno, 1989, 1994) 25,26 . It can follow highly nonlinear geometric changes in the structure during failure.…”
Section: Analysis Methodsmentioning
“…This means that although the element shape doesn't change during analysis, the behavior of assembly of elements is deformable. The Poisson's ratio effect, which is not considered in this formulation, is illustrated in details in Section (6).…”
Section: Element Formulationmentioning
“…This feature enables it to be used for structure collapse analysis. An extended distinct element method (EDEM) improved by Hakuno and Meguro [8][9][10] introduced pore springs between rigid bodies to deal with continuous media such as reinforced concrete materials. As the springs yield and fail, the structure changes gradually from elastic to plastic and ÿnally to discontinuous media so that all elasto-plastic phenomena including collapse can be simulated.…”
Section: Introductionmentioning