Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Discrete element approach to packing of arbitraty-shaped particles in concrete
The shapes of real particles contained in concrete (from coarse aggregate to mineral admixture) are irregular. The influence of particle shape on behavior of packing is enormous both in the fresh concrete and matured concretes. Definition of actual grain shape as well as simulation in a discrete element simulation (DES) approach is complicated. Spherical grain shape is therefore generally adopted in conventional simulation systems, despite imposing serious limitations. A simulation strategy was presented for representation of arbitrary-shape aggregate grains applied in concrete technology. This simulation approach was incorporated in a concurrent algorithm-based DES system with the acronym HADES. After assessment of properties pertaining to arbitrary shaped particles (mass, center of mass, moment of interia), an example of random mono-sized packing with deferent shapes by DES approach was presented. The influence of shape on mono-sized packing behavior was also briefly discussed.
Discrete element approach to packing of arbitraty-shaped particles in concrete
The shapes of real particles contained in concrete (from coarse aggregate to mineral admixture) are irregular. The influence of particle shape on behavior of packing is enormous both in the fresh concrete and matured concretes. Definition of actual grain shape as well as simulation in a discrete element simulation (DES) approach is complicated. Spherical grain shape is therefore generally adopted in conventional simulation systems, despite imposing serious limitations. A simulation strategy was presented for representation of arbitrary-shape aggregate grains applied in concrete technology. This simulation approach was incorporated in a concurrent algorithm-based DES system with the acronym HADES. After assessment of properties pertaining to arbitrary shaped particles (mass, center of mass, moment of interia), an example of random mono-sized packing with deferent shapes by DES approach was presented. The influence of shape on mono-sized packing behavior was also briefly discussed.
Discrete element approach to packing of arbitraty-shaped particles in concrete
He, H. (Autor:in) / Guo, Z. (Autor:in) / Stroeven, P. (Autor:in) / Stroeven, M. (Autor:in)
2008
5 Seiten, 6 Bilder, 1 Tabelle, 29 Quellen
Aufsatz (Konferenz)
Englisch
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