A finite element model used to simulate the dynamics with continuum and discontinuum is presented.This new approach is conducted by constructing the general contact model.The conventional discrete element is treated a...A finite element model used to simulate the dynamics with continuum and discontinuum is presented.This new approach is conducted by constructing the general contact model.The conventional discrete element is treated as a standard finite element with one node in this new method.The one-node element has the same features as other finite elements,such as element stress and strain.Thus,a general finite element model that is consistent with the existed finite element model is set up.This new model is simple in mathematical concept and is straightforward to be combined into the existing standard finite element code.Numerical example demonstrates that this new approach is more effective to perform the dynamic process analysis in which the interactions among a large number of discrete bodies and continuum objects are included.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.10372114 and 90510007)the Program for New Century Excellent Talents in University of China(Grant No.NCET-04-0133)the Engineering and Physical Sciences Research Council(EPSRC)of UK(GR/R21219).
文摘A finite element model used to simulate the dynamics with continuum and discontinuum is presented.This new approach is conducted by constructing the general contact model.The conventional discrete element is treated as a standard finite element with one node in this new method.The one-node element has the same features as other finite elements,such as element stress and strain.Thus,a general finite element model that is consistent with the existed finite element model is set up.This new model is simple in mathematical concept and is straightforward to be combined into the existing standard finite element code.Numerical example demonstrates that this new approach is more effective to perform the dynamic process analysis in which the interactions among a large number of discrete bodies and continuum objects are included.
