Jafari, A., Beyabanaki, S., Yeung, M. (2009). Second-Order Displacement Functions for Three-Dimensional Discontinuous Deformation Analysis (3-D DDA) S.A.. Scientia Iranica, 16(3), -.
A. Jafari; S. A. R. Beyabanaki; M. R. Yeung. "Second-Order Displacement Functions for Three-Dimensional Discontinuous Deformation Analysis (3-D DDA) S.A.". Scientia Iranica, 16, 3, 2009, -.
Jafari, A., Beyabanaki, S., Yeung, M. (2009). 'Second-Order Displacement Functions for Three-Dimensional Discontinuous Deformation Analysis (3-D DDA) S.A.', Scientia Iranica, 16(3), pp. -.
Jafari, A., Beyabanaki, S., Yeung, M. Second-Order Displacement Functions for Three-Dimensional Discontinuous Deformation Analysis (3-D DDA) S.A.. Scientia Iranica, 2009; 16(3): -.
1Department of Mining and Metallurgical Engineering,University of Tehran
2Department of Civil Engineering,University of California
Abstract
Abstract. The development of second-order displacement functions for a Three-Dimensional Discontinuous
Deformation Analysis (3-D DDA) is made by incorporating the complete second order terms.
Formulations of sti ness and force matrices in second-order due to elastic stress, initial stress, point load,
body force, inertia force and xed point are derived. Two illustrative examples of 3-D beams subjected to
various loads are used to validate the new formulations and code. By contrast, the results calculated for
the same model by use of the original rst-order 3-D DDA are far from the theoretical solutions.
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