Combined single and smeared crack model in combined finite-discrete element analysis

Large-scale discrete element simulations, combined finite-discrete element simulations as well as a whole range of related problems, involve a large n umber of separate bodies that interact with each other and in general defor m and fracture. In this context there is a need for a robust fracture algor ithm applicable to simultaneous multiple fracturing of large numbers of bod ies. In this work a fracture model for both initiation and propagation of mode I loaded cracks in concrete in the context of the combined finite-discrete e lement method is reported. The algorithm is based on accurate approximation of experimental stress-strain curves for concrete in tension. Copyright (C ) 1999 John Wiley & Sons, Ltd.