Experiments and calibration of a bond-slip relation and efficiency factors for textile reinforcement in concrete
Journal article, 2022

Textile reinforcement yarns consist of many filaments, which can slip relative each other. At modelling of the global structural behaviour, interfilament slip in the yarns, and slip between the yarns and the concrete can be considered by efficiency factors for the stiffness and strength of the yarns, and by applying a bond-slip relation between yarns and concrete. In this work, an effective and robust method for calibration of such models was developed. Two-sided asymmetrical pull-out tests were carried out, with varying embedment lengths designed to obtain both pull-out and rupture of the textile as failure mode. The efficiency factors for strength and stiffness of the textile were very similar, 34% and 35% respectively. This indicates the stress distribution within a yarn to be uneven in a similar manner for small and large stress levels, and that interfilament slip has a larger influence than variation of filaments’ strength.

Finite element analysis

Pull-out test

Carbon textile yarns


Interfilament slip

Indirect calibration


A. Sciegaj

Gdansk University of Technology

Fredrik Larsson

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Karin Lundgren

Chalmers, Architecture and Civil Engineering, Structural Engineering

Cement and Concrete Composites

0958-9465 (ISSN)

Vol. 134 104756

Multiscale modelling of textile reinforced concrete structure

Swedish Research Council (VR) (2018-03691), 2019-01-01 -- 2023-12-31.

Subject Categories

Applied Mechanics

Geotechnical Engineering

Building Technologies



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