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International Journal for Multiscale Computational Engineering
Impact-faktor: 1.016 5-jähriger Impact-Faktor: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v7.i4.60
pages 309-328

Crack-Centered Enrichment for Debonding in Two-Phase Composite Applied to Textile Reinforced Concrete

Rostislav Chudoba
RWTH Aachen University
Jakub Jerabek
Structural Statics and Dynamics, RWTH Aachen, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany
Frank Peiffer
Structural Statics and Dynamics, RWTH Aachen, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany

ABSTRAKT

This article introduces an enriched finite element representation of crack bridges suitable for simulating the complex damage processes in textile-reinforced concrete. The heterogeneity of both the matrix and the reinforcement occurs at similar length scales of the material structure. Consequently, an improved accuracy of approximation at the hot spots of damage is required to capture the relevant damage mechanisms. This is done by combining the extended finite element method with the variational multiscale approach. While the former is used to define the crack in the matrix, the latter serves for local resolution of the displacement fields in the vicinity of the crack. The approach is exemplified on a 1D example of a tension bar with interacting cracks and on the detailed analysis of debonding in a shear zone of a bending specimen

REFERENZEN

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