Title of article :
Second-Order Displacement Functions for Three-Dimensional Discontinuous Deformation Analysis (3-D DDA)
Author/Authors :
Beyabanaki, S. A. R. university of tehran - School of Mining Engineering - Department of Engineering, تهران, ايران , Jafari, A. university of tehran - School of Mining Engineering - Department of Engineering, تهران, ايران , Yeung, M. R. California State Polytechnic University. - College of Engineering - Department of Civil Engineering, USA.
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 stiffness and force matrices in second-order due to elastic stress, initial stress, point load, body force, inertia force and fixed 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 first-order 3-D DDA are far from the theoretical solutions.
Keywords :
Numerical method , Three , Dimensional Discontinuous Deformation Analysis (3 , D DDA) , Second , order displacement functions , Rock mechanics.
Journal title :
Scientia Iranica(Transactions B:Mechanical Engineering)
Journal title :
Scientia Iranica(Transactions B:Mechanical Engineering)
