Over the last decade, researchers in the discontinuous deformation analysis (DDA)
community have dedicated a great deal of effort to document the accuracy of the method by …

The numerical, discrete element, Discontinuous Deformation Analysis (DDA) method was
developed by Dr. Gen-hua Shi while he was working at the University of California …

In the two-dimensional discontinuous deformation analysis (DDA), contacts can be
generalized into three types: vertex to edge, edge to edge, and vertex to vertex. In the vertex …

Abstract The Distinct Element Method (DEM) and Discontinuous Deformation Analysis
(DDA) are the two most commonly used discrete element methods in rock mechanics …

This paper presents a new numerical model that can add a finite element mesh into each
block of the three-dimensional discontinuous deformation analysis (3-D DDA), originally …

As a hybrid method, the nodal‐based discontinuous deformation analysis (NDDA) greatly
improves the stress accuracy within each DDA block by coupling a well‐defined finite …

Formulated based on the discrete block system, the Discontinuous Deformation Analysis
(DDA) requires an accurate contact analysis between discrete blocks. Among the various …

Three‐dimensional discontinuous deformation analysis (3‐D DDA) with high‐order
displacement functions has been derived for the requirement of highly accurate stress and …

Tensile cracks significantly influence stability of mining, tunneling, and other geotechnical
engineering scenarios. Discontinuous deformation analysis (DDA) is widely employed to …

In the last decade, three dimensional discontinuous deformation analyses (3D DDA) has
attracted more and more attention of researchers and geotechnical engineers worldwide …