Modeling tensile crack propagation in concrete gravity dams via crack-path-field and strain injection techniques
This work investigates tensile crack propagation in concrete gravity dams by using some recently developed numerical techniques (crack-path field and strain injection techniques). The work carefully addresses aspects related to mesh independence, robustness and computational cost, which are the main...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/82356 |
| Acceso en línea: | https://hdl.handle.net/2117/82356 https://dx.doi.org/10.1016/j.engfracmech.2015.12.028 |
| Access Level: | acceso abierto |
| Palabra clave: | Gravity dams Concrete gravity dams Fracture Computational material failure Strong discontinuities Crack-path field Strain injection Mixed formulation COMP-DES-MAT Project COMPDESMAT Project Preses (Enginyeria) -- Mètodes numèrics Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Embassaments i preses Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| Sumario: | This work investigates tensile crack propagation in concrete gravity dams by using some recently developed numerical techniques (crack-path field and strain injection techniques). The work carefully addresses aspects related to mesh independence, robustness and computational cost, which are the main issues in fracture modeling. The novel technique consists of a procedure to insert, in the selected domain areas, specific strain fields for enhancing the performance of the underlying finite elements in modeling fracture. Representative numerical simulations of concrete dams show the accuracy and robustness of the methodology. The code used for the simulations is open-source and available at http://www.cimne.com/compdesmat/. |
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