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3D lattice type fracture model for concrete

Lilliu, G. / Van Mier, J.G.M.

A 3D beam lattice model is used for simulating fracture processes in concrete, which is schematized as a three-phase material (aggregate, interfacial transition zone and matrix). Numerical experiments are conducted varying the particle density. The obtained results show that, with increasing particle density, the peak-load decreases and the response is more ductile. This appears to be related to the amount of de-bonding. As a matter of fact, when the strength of the interface transition zone is set equal to the strength of the matrix, neither the peak-load nor the ductility of the lattice response are influenced by the particle density.

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3D lattice type fracture model for concrete

Lilliu, G. / Van Mier, J.G.M.

A 3D beam lattice model is used for simulating fracture processes in concrete, which is schematized as a three-phase material (aggregate, interfacial transition zone and matrix). Numerical experiments are conducted varying the particle density. The obtained results show that, with increasing particle density, the peak-load decreases and the response is more ductile. This appears to be related to the amount of de-bonding. As a matter of fact, when the strength of the interface transition zone is set equal to the strength of the matrix, neither the peak-load nor the ductility of the lattice response are influenced by the particle density.

3D lattice type fracture model for concrete

Lilliu, G. / Van Mier, J.G.M.

A 3D beam lattice model is used for simulating fracture processes in concrete, which is schematized as a three-phase material (aggregate, interfacial transition zone and matrix). Numerical experiments are conducted varying the particle density. The obtained results show that, with increasing particle density, the peak-load decreases and the response is more ductile. This appears to be related to the amount of de-bonding. As a matter of fact, when the strength of the interface transition zone is set equal to the strength of the matrix, neither the peak-load nor the ductility of the lattice response are influenced by the particle density.

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Title:

3D lattice type fracture model for concrete

Contributors:

Lilliu, G. (author) / Van Mier, J.G.M. (author)

Published in:

Engineering Fracture Mechanics ; 70 ; 927-941

Publication date:

2003

Size:

15 Seiten, 24 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0013-7944(02)00158-3

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Verformungsbruch , Mikropartikel , Dichte (Masse) , Phasenumwandlung , Rechnersimulation , Teilchendichte , Bruchmechanik , Beton , Simulationsmodell , Bruchverlauf

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