Benchmarking the numerical Discontinuous Deformation Analysis method

The Discontinuous Deformation Analysis (DDA) method is an important tool for investigating the dynamics of systems composed of multiple discrete elements such as masonry structures and blocky rock masses. As such it has become a popular investigative tool in geotechnical and rock engineering research. In this paper dynamic verification studies of 2D and 3D-DDA performed by the rock mechanics research group at the Ben-Gurion University of the Negev, Israel (BGU), are reviewed. The analytical verifications developed and reviewed here allow critical assessment of the advantages and limitations of 2D and 3D-DDA, can be used as benchmark tests for attempted modifications to the original DDA code, for calibration of input numerical control parameters, and for quantitative and meaningful comparison with other numerical discrete element methods.