Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Smeared Crack Approach and Fracture Localization in Concrete
The possibilities of the smeared crack concept for simulating crack propagation and fracture in concrete is investigated. A smeared crack formulation is proposed which treats concrete constitutive behavior separately from crack interface behavior. A crack closing option is included. The model has been evaluated by using the DIANA finite element package. Three types of example problems are considered. First, mode I fracture in unreinforced concrete is discussed. The way in which stable and mesh-insensitive solutions can be obtained is demonstrated. Next, mixed-mode fracture in unreinforced concrete is discussed. Finally, mixed-mode fracture in two shear-critical reinforced beams is analyzed, one of which fails in diagonal tension and one in shear-compression. The principal outcome of the project is that pronounced fracture localization can in principle be predicted by using a smeared crack strategy.
Smeared Crack Approach and Fracture Localization in Concrete
The possibilities of the smeared crack concept for simulating crack propagation and fracture in concrete is investigated. A smeared crack formulation is proposed which treats concrete constitutive behavior separately from crack interface behavior. A crack closing option is included. The model has been evaluated by using the DIANA finite element package. Three types of example problems are considered. First, mode I fracture in unreinforced concrete is discussed. The way in which stable and mesh-insensitive solutions can be obtained is demonstrated. Next, mixed-mode fracture in unreinforced concrete is discussed. Finally, mixed-mode fracture in two shear-critical reinforced beams is analyzed, one of which fails in diagonal tension and one in shear-compression. The principal outcome of the project is that pronounced fracture localization can in principle be predicted by using a smeared crack strategy.
Smeared Crack Approach and Fracture Localization in Concrete
J. G. Rots (Autor:in) / P. Nauta (Autor:in) / G. M. A. Kusters (Autor:in) / J. Blaauwendraad (Autor:in)
1985
52 pages
Report
Keine Angabe
Englisch
Construction Materials, Components, & Equipment , Structural Analyses , Construction Equipment, Materials, & Supplies , Structural Mechanics , Concretes , Finite element analysis , Beams(Supports) , Fracture(Materials) , Cracking(Fracturing) , Crack propagation , Reinforced concrete , Shear modulus , Stresses , Strains , Predictions , Failure , Mathematical models , Foreign technology
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