Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mechanical Behavior of Strain-Hardening Cement-Based Composites (SHCC) Subjected to Torsional Loading and to Combined Torsional and Axial Loading

Tathiana Caram Souza de Paula Figueiredo
,
Lurie Curosu
* ORCID logo ,
Giancarlo Luis Gomez Gonzales
,
Marcus Hering
ORCID logo ,
Flávio de Andrade Silva
ORCID logo ,
Manfred Curbach
,
Viktor Mechtcherine
ORCID logo
Version 1 : Received: 23 September 2020 / Approved: 25 September 2020 / Online: 25 September 2020 (03:45:00 CEST)

A peer-reviewed article of this Preprint also exists.

Figueiredo, T. C. S. P.; Curosu, I.; Gonzáles, G. L. G.; Hering, M.; Silva, F. de A.; Curbach, M.; Mechtcherine, V. Mechanical Behavior of Strain-Hardening Cement-Based Composites (SHCC) Subjected to Torsional Loading and to Combined Torsional and Axial Loading. Materials & Design, 2021, 198, 109371. https://doi.org/10.1016/j.matdes.2020.109371. Figueiredo, T. C. S. P.; Curosu, I.; Gonzáles, G. L. G.; Hering, M.; Silva, F. de A.; Curbach, M.; Mechtcherine, V. Mechanical Behavior of Strain-Hardening Cement-Based Composites (SHCC) Subjected to Torsional Loading and to Combined Torsional and Axial Loading. Materials & Design, 2021, 198, 109371. https://doi.org/10.1016/j.matdes.2020.109371.

Abstract

Strain-hardening cement-based composites (SHCC) are a novel class of fiber-reinforced concretes which exhibit high tensile strain capacity prior to failure localization. Although the tensile behavior of SHCC has been a matter of study in numerous research works, the behavior of these composites under other loading modes has scarcely been investigated. The article at hand addresses the mechanical behavior of two types of normal-strength SHCC subject to uniaxial tension, torsion, and combinations of torsional and axial loading. The SHCC under investigation were made with polyvinyl-alcohol (PVA) and ultra-high molecular weight polyethylene (UHMWPE) fibers, respectively. Digital Image Correlation (DIC) was applied to evaluate the multiple cracking process and crack opening modes in conjunction with the concretes’ axial and torsional loading histories. The study demonstrates the suitability of torsion experiments to assess the multi-axial and shear performance of SHCC, highlights the relation between multiple cracking and transfer capacity for shear forces, and emphasizes the importance of the type of reinforcing fibers on the shear strength and ductility of such composites.

Keywords

SHCC; ECC; PVA fiber; UHMWPE fiber; torsion; tension; DIC

Subject

Engineering, Civil Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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