Vol. 12, No. 5, 2017

Download this article
Download this article For screen
For printing
Recent Issues

Volume 18
Issue 5, 621–764
Issue 4, 427–565
Issue 3, 293–425
Issue 2, 143–291
Issue 1, 1–141

Volume 17, 5 issues

Volume 16, 5 issues

Volume 15, 5 issues

Volume 14, 5 issues

Volume 13, 5 issues

Volume 12, 5 issues

Volume 11, 5 issues

Volume 10, 5 issues

Volume 9, 5 issues

Volume 8, 8 issues

Volume 7, 10 issues

Volume 6, 9 issues

Volume 5, 6 issues

Volume 4, 10 issues

Volume 3, 10 issues

Volume 2, 10 issues

Volume 1, 8 issues

The Journal
About the Journal
Editorial Board
Subscriptions
 
Submission Guidelines
Submission Form
Policies for Authors
Ethics Statement
 
ISSN: 1559-3959
Author Index
To Appear
 
Other MSP Journals
Micro and macro crack sensing in TRC beam under cyclic loading

Yiska Goldfeld, Till Quadflieg, Stav Ben-Aarosh and Thomas Gries

Vol. 12 (2017), No. 5, 579–601
Abstract

This paper studies the ability of self-sensory carbon/glass textile reinforced concrete (TRC) beams to distinguish between micro- and macrocracking. In the proposed configuration, continuous carbon rovings knitted into the textile mesh serve both as the structural reinforcement and as the sensory system. The paper faces the challenge of detecting structural damage within the TRC structure. In this study, damage is defined as the formation of macroscopic cracks, which lead to the accumulation of significant irreversible residual deflection and to a reduction of the relative stiffness of the component. We explore experimentally the correlation between the electrical resistance change and the change of the structural properties and suggests crack detection parameters in order to identify, and mainly to distinguish, between micro- and macrostructural phenomena. Carbon rovings are found to provide electromechanical sensing capabilities, having the ability to distinguish between inner micromechanical structural phenomena and macroscopic ones. These observations are a step towards the applications of SHM techniques by intelligent carbon-based TRC elements.

Keywords
crack detection, textile reinforced concrete, carbon rovings, electrical resistivity
Milestones
Received: 3 September 2016
Revised: 23 May 2017
Accepted: 23 May 2017
Published: 22 November 2017
Authors
Yiska Goldfeld
Department of Civil and Environmental Engineering
Technion, Israel Institute of Technology
Haifa
Israel
Till Quadflieg
Institut fuer Textiltechnik
RWTH Aachen University
Aachen
Germany
Stav Ben-Aarosh
Department of Civil and Environmental Engineering
Technion, Israel Institute of Technology
Haifa
Israel
Thomas Gries
Institut fuer Textiltechnik
RWTH Aachen University
Aachen
Germany