Modification of the DDA for elasto-plastic analysis with illustrative generic problems
Abstract
Discontinuous deformation analysis (DDA) was created by Shi & Goodman. It solves a finite element type of mesh where all the elements are isolated blocks and bounded by pre-existing discontinuities under kinematic conditions of dynamic and quasi-static motion. The authors introduced an elasto-plastic yield criterion in the analysis, and added several new elements to handle with practical rock mechanics problems. The results show validity of the method for practical use.
Fields of Study & Subjects
Rock Mechanics and Modeling
Numerical methods in engineering
Geomechanics and Mining Engineering
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 45–50
- Publication date
- 18 February 2026
- Language
- EN
- Document type
- Book chapter