Microstructural analysis and mechanical properties of concrete reinforced with polymer short fibers

被引：25

作者：

Trofimov, Anton ^{[1
]}

Mishurova, Tatiana ^{[2
]}

Lanzoni, Luca ^{[3
]}

Radi, Enrico ^{[3
]}

Bruno, Giovanni ^{[2
]}

Sevostianov, Igor ^{[4
]}

机构：

[1] Skolkovo Inst Sci & Technol, Ctr Design Mfg & Mat, Skolkovo, Russia

[2] Bundesanstalt Mat Forsch & Prufung, BAM, Unter den Eichen 87, D-12205 Berlin, Germany

[3] Univ Modena & Reggio Emilia, Dipartimento Sci & Metodi Ingn, Via Amendola 2, I-42122 Reggio Emilia, Italy

[4] New Mexico State Univ, Dept Mech & Aerosp Engn, Las Cruces, NM 88003 USA

来源：

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE | 2018年 / 133卷

关键词：

Reinforced concrete; Computer tomography; Finite element method; Micromechanics; Homogenization; RAY COMPUTED-TOMOGRAPHY; SYNTHETIC-FIBERS; PULLOUT BEHAVIOR; NANO-SILICA; HOMOGENIZATION; PERFORMANCE; COMPOSITES; STIFFNESS; TENSORS;

D O I：

10.1016/j.ijengsci.2018.09.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper focuses on the development of a methodology for quantitative characterization of a concrete containing polymer fibers and pores. Computed tomography (CT) characterization technique is used to provide input data for Finite Element Method (FEM) simulations and analytical modeling based on micromechanical homogenization via the compliance contribution tensor formalism. Effective elastic properties of reinforced concrete are obtained experimentally using compression testing, analytically in the framework of Non Interaction approximation and numerically performing direct FEM simulations on specimen with reconstructed microstructure. It is shown that CT produces results suitable for implementation in numerical and analytical models. The results of analytical and numerical modeling are in a good agreement with experimental measurements providing maximum discrepancy of similar to 2.5%. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：210 / 218

页数：9

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