Numerical simulation of fracture of concrete at different loading rates by using the cohesive crack model
| Autor: | Gustavo Morales-Alonso, Victor Rey-de-Pedraza, Francisco Gálvez, David A. Cendón |
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| Rok vydání: | 2018 |
| Předmět: |
Computer simulation
business.industry Applied Mathematics Mechanical Engineering Subroutine Finite element solver 0211 other engineering and technologies 02 engineering and technology Structural engineering Condensed Matter Physics High strain 020303 mechanical engineering & transports Discontinuity (geotechnical engineering) 0203 mechanical engineering General Materials Science business Geology ComputingMethodologies_COMPUTERGRAPHICS 021101 geological & geomatics engineering |
| Zdroj: | Theoretical and Applied Fracture Mechanics. 96:308-325 |
| ISSN: | 0167-8442 |
| DOI: | 10.1016/j.tafmec.2018.05.003 |
| Popis: | This paper presents an implementation of the Cohesive Crack Model using the Strong Discontinuity Approach technique to simulate the fracture of the concrete and other quasi-brittle materials at different strain rates. Since one of the principal applications of this model is to simulate the fracture at high strain rates, it has been programmed as a user subroutine in the commercial explicit finite element solver LS-DYNA. For the validation of the model, in addition to studying the sensitivity to element size, it has been compared with a collection of experimental results, both in quasi-static and dynamic regimes. The results prove the ability of the model to accurately reproduce different parameters, such as load-displacement curves, crack trajectories or fracture mechanisms. |
| Databáze: | OpenAIRE |
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