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- Discontinuous_Deformation_Analysis abstract "Discontinuous Deformation Analysis (DDA) is a type of discrete element method (DEM) originally proposed by Shi in 1988. DDA is somewhat similar to the finite element method for solving stress-displacement problems, but accounts for the interaction of independent particles (blocks) along discontinuities in fractured and jointed rock masses. DDA is typically formulated as a work-energy method, and can be derived using the principle of Minimum Potential Energy (e.g., Shi) or by using Hamilton's principle. Once the equations of motion are discretized, a step-wise linear time marching scheme in the Newmark family is used for the solution of the equations of motion. The relation between adjacent blocks is governed by equations of contact interpenetration and accounts for friction. DDA adopts a stepwise approach to solve for the large displacements that accompany discontinuous movements between blocks. The blocks are said to be "simply deformable". Since the method accounts for the inertial forces of the blocks' mass, it can be used to solve the full dynamic problem of block motion.".
- Discontinuous_Deformation_Analysis wikiPageExternalLink dda.
- Discontinuous_Deformation_Analysis wikiPageID "6373591".
- Discontinuous_Deformation_Analysis wikiPageRevisionID "598939785".
- Discontinuous_Deformation_Analysis hasPhotoCollection Discontinuous_Deformation_Analysis.
- Discontinuous_Deformation_Analysis subject Category:Computational_physics.
- Discontinuous_Deformation_Analysis subject Category:Deformation.
- Discontinuous_Deformation_Analysis comment "Discontinuous Deformation Analysis (DDA) is a type of discrete element method (DEM) originally proposed by Shi in 1988. DDA is somewhat similar to the finite element method for solving stress-displacement problems, but accounts for the interaction of independent particles (blocks) along discontinuities in fractured and jointed rock masses.".
- Discontinuous_Deformation_Analysis label "Discontinuous Deformation Analysis".
- Discontinuous_Deformation_Analysis sameAs m.0g2zwv.
- Discontinuous_Deformation_Analysis sameAs Q5281666.
- Discontinuous_Deformation_Analysis sameAs Q5281666.
- Discontinuous_Deformation_Analysis wasDerivedFrom Discontinuous_Deformation_Analysis?oldid=598939785.
- Discontinuous_Deformation_Analysis isPrimaryTopicOf Discontinuous_Deformation_Analysis.