Discontinuous deformation analysis handling vertex‐vertex contact based on principle of least effort
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DOI: 10.1002/nme.6427
Abstract: This study establishes an innovative discontinuous deformation analysis by solving the problem of frictional and cohesive contact using an implicit cone complementary formulation. In order to handle singularity associated with the vertex‐vertex contact, resistances to… read more here.
Keywords: vertex; vertex vertex; vertex contact; contact ... See more keywords
Novel displacement function for discontinuous deformation analysis based on mean value coordinates
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DOI: 10.1002/nme.6491
Abstract: The rotation degree of freedom in discontinuous deformation analysis (DDA) may cause false volume expansion when a block undergoes a large rotation. We propose a block displacement function to prevent this defect. Specifically, the degrees… read more here.
Keywords: analysis; displacement function; displacement; deformation analysis ... See more keywords
Modeling of Rock Joints Under Cyclic Loading Conditions Using Discontinuous Deformation Analysis
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DOI: 10.1007/s00603-016-1158-y
Abstract: The shear strength of rock joints is an important factor to be considered when analyzing the stability of jointed rock mass. Rock joints tend to have smaller shear resistances in the reverse shearing than that… read more here.
Keywords: joints cyclic; rock joints; cyclic loading; model ... See more keywords
CPU-accelerated explicit discontinuous deformation analysis and its application to landslide analysis
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DOI: 10.1016/j.apm.2019.07.028
Abstract: Abstract An explicit discontinuous deformation analysis (DDA) that uses an explicit time integration procedure and an explicit calculation of interaction forces between blocks is proposed to overcome the limitations of conventional implicit DDA in simulating… read more here.
Keywords: dda; explicit dda; explicit discontinuous; discontinuous deformation ... See more keywords
A full-stage parallel architecture of three-dimensional discontinuous deformation analysis using OpenMP
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DOI: 10.1016/j.compgeo.2019.103346
Abstract: Abstract It can be computationally expensive to conduct large-scale engineering computation using three-dimensional discontinuous deformation analysis (3-D DDA). Improving the efficiency of 3-D DDA is thus imperative, and an available approach is to incorporate parallelism… read more here.
Keywords: three dimensional; deformation analysis; full stage; dimensional discontinuous ... See more keywords
Slope-Slide Simulation with Discontinuous Deformation and Displacement Analysis
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DOI: 10.1061/(asce)gm.1943-5622.0000746
Abstract: Abstract The discontinuous deformation and displacement (DDD) analysis method, a combination of the realistic failure-process analysis (RFPA) and discontinuous deformation analysis (DDA) methods, offers an appropriate approach for whole rock failure-process analysis involving both the… read more here.
Keywords: deformation displacement; analysis; deformation; slope slide ... See more keywords