Frontiers of Structural and Civil Engineering
>> 2015,
Volume 9,
Issue 4
doi:
10.1007/s11709-015-0320-z
RESEARCH ARTICLE
Computational model generation and RVE design of self-healing concrete
1. Institute of Structural Mechanics, Bauhaus-Universität Weimar, Weimar 99425, Germany.2. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China
Accepted: 2015-11-19
Available online: 2015-11-26
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Abstract
Computational homogenization is a versatile tool that can extract effective properties of heterogeneous or composite material through averaging technique. Self-healing concrete (SHC) is a heterogeneous material which has different constituents as cement matrix, sand and healing agent carrying capsules. Computational homogenization tool is applied in this paper to evaluate the effective properties of self-healing concrete. With this technique, macro and micro scales are bridged together which forms the basis for multi-scale modeling. Representative volume element (RVE) is a small (microscopic) cell which contains all the microphases of the microstructure. This paper presents a technique for RVE design of SHC and shows the influence of volume fractions of different constituents, RVE size and mesh uniformity on the homogenization results.
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