Comparison of Crack Band and Cohesive Crack Approaches

During the 1980s, there was a lively debate on the relative merits and deficiencies of the crack band and cohesive crack representations of concrete fracture. There are four aspects of comparison to consider: (1) the ability to describe fracture that has localized in a single crack; (2) the ability to describe distributed fracture; (3) the ability to describe the micromechanical level; and (4) the possibility to predict fracture of arbitrary direction.