Displacement-based seismic discontinuous deformation analysis

Research output: Contribution to conferencePaperpeer-review


This study discussed the newly developed displacement-based seismic DDA for the seismic analysis. In the displacement-based seismic DDA, the time-dependent displacement constraints based on the conventional fixed point is used to simulate the seismic behavior of the base rock. The gravity force and the contact forces among blocks govern the behavior of the siding rocks. The computational results indicate that in displacement-based calculations, the average of the coordinates of the displacement constraints must coincide with that of centroid point of the base block. Additionally, the computational results of the conventional acceleration-based seismic DDA, which applied seismic accelerations to the sliding blocks, conflicts with d'Alembert's principle of mechanics after comparing the computational results of the new displacement-based seismic analysis to the conventional acceleration-based seismic computations. The new displacement-based seismic DDA is a useful technique in seismic analysis.

Original languageEnglish
Publication statusPublished - 2011 Dec 6
Event45th US Rock Mechanics / Geomechanics Symposium - San Francisco, CA, United States
Duration: 2011 Jun 262011 Jun 29


Other45th US Rock Mechanics / Geomechanics Symposium
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics


Dive into the research topics of 'Displacement-based seismic discontinuous deformation analysis'. Together they form a unique fingerprint.

Cite this