A Comparison of Cohesive Crack Model and Crack Band Model in Concrete Fracture
| Periodical | Applied Mechanics and Materials (Volumes 170 - 173) |
|---|---|
| Main Theme | Progress in Civil Engineering |
| Edited by | Mingjin Chu, Xiangran Li, Jingzhou Lu, Xingmin Hou and Xiaogang Wang |
| Pages | 3375-3380 |
| DOI | 10.4028/www.scientific.net/AMM.170-173.3375 |
| Citation | Liang Wu et al., 2012, Applied Mechanics and Materials, 170-173, 3375 |
| Online since | May, 2012 |
| Authors | Liang Wu, Ze Li, Shang Huang |
| Keywords | Cohesive Crack Model, Concrete, Crack Band Model, Finite Element Method (FEM), Fracture, Smeared Cracking |
| Price | US$ 28,- |
The cohesive crack model and the crack band model are two convenient approaches in concrete fracture analysis. They can describe in full the fracture process by the different manner: The entire fracture process zone is lumped into the crack line and is characterized in the form of a stress-displacement law which exhibits softening; or the inelastic deformations in the fracture process zone are smeared over a band of a certain width, imagined to exist in front of the main crack. The correlation of the two models is developed based on a characteristic width of crack band. The analysis shows that they can yield about the same results if the crack opening displacement in the cohesive crack model is taken as the fracturing strain that is accumulated over the width of the crack band model. Some basic problems are also discussed in finite element analysis.
