New iterative method to obtain the softening curve in concrete
| Autor: | F.J. Gómez, M. A. Martin-Rengel, J. Ruiz-Hervias, Adel Fathy, Filippo Berto |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Iterative method Experimental data Fracture mechanics 02 engineering and technology Bending Fiber-reinforced concrete Cohesive zone model 01 natural sciences Finite element method 010305 fluids & plasmas law.invention 020303 mechanical engineering & transports 0203 mechanical engineering softening curve fiber reinforced concrete law 0103 physical sciences concrete Applied mathematics Composite material Softening Earth-Surface Processes |
| Zdroj: | Procedia Structural Integrity. 2:2841-2848 |
| ISSN: | 2452-3216 |
| DOI: | 10.1016/j.prostr.2016.06.355 |
| Popis: | An original procedure to determine the softening curve in concrete has been proposed by the authors. This inverse method combines experimental results, finite element simulations and an iterative algorithm to adjust the experimental data. The end product of the process is a softening curve that allows us to very accurately reproduce the experimental curves. The proposed method calculates the fracture energy from the cohesive softening curve model, which in turn is iteratively determined by adjusting experimental load-displacement data of three-point bending tests. The procedure has been successfully applied to two conventional concretes. |
| Databáze: | OpenAIRE |
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