Discontinuous Deformation Analysis (DDA) is a numerical method used primarily in geotechnical engineering and rock mechanics to analyze the behavior of jointed or fractured rock masses and soils. Unlike traditional finite element methods (FEM) that assume continuity in the material, DDA is specifically designed to handle discontinuities and can model the movement and interaction of blocks or segments that can slide or separate from each other due to applied loads or changes in stress conditions.
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