Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 422, Issue 1-2, Pages 278-284Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2006.02.007
Keywords
textile reinforced concrete; homogenisation; effective field approximation; micro-crack density parameter; slip-based bond model
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This paper is focussed on the description of the macroscopic nonlinear elastic material behaviour of textile reinforced concrete (TRC) using an analytical approach. Damage and cracking of the composite are considered as well. The heterogeneous structure of TRC is modelled on the mesoscopic level and the overall material behaviour on the macroscopic level is obtained by means of homogenisation. The analytical approach is based on the micro-mechanical solution for a single inclusion according to Eshelby. In extension of this solution for multi-directionally reinforced concrete an effective field approximation is used. This approach allows the consideration of the interactions between the differently orientated rovings and also between rovings and micro-cracks in an average sense. The micro-cracks are included in the mechanical model by using a microcrack density parameter. For the mechanical modelling of the bond behaviour between roving and matrix after the initiation of macro-cracking a slip-based bond model with a multiple linear shear stress-slip relation is introduced. (c) 2006 Elsevier B.V. All rights reserved.
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