Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Discrete modeling of cracking of brittle materials in large relative motion and localization problem
The authors introduce a discrete model approach in order to study fracture of a reinforced-concrete structure. The 'mesh' of the discrete model is constructed from a Voronoi tessellation, where particles are tied together by the cohesive forces represented by beams elements. The links between particles can break when their local strain reaches a random threshold, either in rotation or translation. In order to analyze large relative motion and associated localization mode, the authors use geometrically nonlinear Reissner's beam model to represent the links between particles, that take into account large relative motion. The proposed formulation allows to develop an efficient solution Newton-like procedure and to obtain easily the tangent stiffness operator. A numerical simulation of a bridge pear under flexion load is given in order to illustrate the presented model.
Discrete modeling of cracking of brittle materials in large relative motion and localization problem
The authors introduce a discrete model approach in order to study fracture of a reinforced-concrete structure. The 'mesh' of the discrete model is constructed from a Voronoi tessellation, where particles are tied together by the cohesive forces represented by beams elements. The links between particles can break when their local strain reaches a random threshold, either in rotation or translation. In order to analyze large relative motion and associated localization mode, the authors use geometrically nonlinear Reissner's beam model to represent the links between particles, that take into account large relative motion. The proposed formulation allows to develop an efficient solution Newton-like procedure and to obtain easily the tangent stiffness operator. A numerical simulation of a bridge pear under flexion load is given in order to illustrate the presented model.
Discrete modeling of cracking of brittle materials in large relative motion and localization problem
Diskretes Modell zur Simulation von Brüchen in spröden Materialien
Delaplace, A. (Autor:in) / Ibrahimbegovic, A. (Autor:in)
2003
9 Seiten, 6 Bilder, 10 Quellen
Aufsatz (Konferenz)
Englisch
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