Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Discrete element method for predicting the behavior of concrete under dynamic loading
High strain rate tests are simulated by a 2D discrete element method. This method is well adapted to problems involving fracturing and fragmentation of heterogeneous materials and geomaterials. The mesh is a Voronoi diagram, the associates Delaunay diagram being the set of the links between each cell and its neighbors. Each link is characterized by local parameters Kn and Ks, the normal and the shear stiffness. Furthermore, rupture thresholds phin and phis are introduced to simulate mode-I and mode-II crack. A numerical code based on this method is used to simulate the effects of contact explosion on a 20 cm width concrete slab. Synthetic results are compared with experimental data. Compaction, fracture propagation and damage are well-fitted. It is shown that the phenomenology is complex and depends on strain rate loading and porosity of target materials.
Discrete element method for predicting the behavior of concrete under dynamic loading
High strain rate tests are simulated by a 2D discrete element method. This method is well adapted to problems involving fracturing and fragmentation of heterogeneous materials and geomaterials. The mesh is a Voronoi diagram, the associates Delaunay diagram being the set of the links between each cell and its neighbors. Each link is characterized by local parameters Kn and Ks, the normal and the shear stiffness. Furthermore, rupture thresholds phin and phis are introduced to simulate mode-I and mode-II crack. A numerical code based on this method is used to simulate the effects of contact explosion on a 20 cm width concrete slab. Synthetic results are compared with experimental data. Compaction, fracture propagation and damage are well-fitted. It is shown that the phenomenology is complex and depends on strain rate loading and porosity of target materials.
Discrete element method for predicting the behavior of concrete under dynamic loading
Methode der diskreten Elemente zur Vorhersage des Verhaltens von Beton unter dynamischer Belastung
Camborde, F. (Autor:in) / Grillon, Y. (Autor:in) / Chaigneau, F. (Autor:in)
2000
8 Seiten, 7 Bilder, 2 Tabellen, 9 Quellen
Aufsatz (Konferenz)
Englisch
Modelling Pervious Concrete under Compression Loading - a Discrete Element Approach
| British Library Conference Proceedings | 2011
Modelling Pervious Concrete under Compression Loading – a Discrete Element Approach
| Trans Tech Publications | 2010
A discrete element model of concrete under high triaxial loading
| Online Contents | 2011
Corrosion behavior of reinforced concrete under dynamic loading
| Tema Archiv | 1985
Discrete element modeling of soil-structure interface behavior under cyclic loading
| British Library Online Contents | 2019