Publication detail

Influence of test parameters on the interlaminar shear strength of FRP bars

JANUŠ, O. GIRGLE, F. ČAIROVIĆ, I. KOSTIHA, V. PROKEŠ, J. ŠTĚPÁNEK, P. ČAIROVIĆ, D.

Original Title

Influence of test parameters on the interlaminar shear strength of FRP bars

Type

journal article in Web of Science

Language

English

Original Abstract

At present, the interlaminar shear test is increasingly used as a supplementary test to determine the mechanical characteristics of FRP bars. This is mainly due to its simplicity and its ability to quantify the properties of the fibre/matrix interface. These tests are performed according to ASTM D4475. However, there are several parameters in ASTM D4475 that are not directly specified. Due to this, studies that use such tests feature a variety of different boundary conditions and, consequently, suffer from limited comparability. Furthermore, no study is available in which the effects of changes in selected parameters are comprehensively determined. This paper presents an experimental study that investigated the capabilities and limitations of the short-beam test. In this study a total of 338 specimens from three different manufacturers were tested. The study was focused on the influence of different bar diameters, span-to-diameter ratios and loading speeds. It was found experimentally that the calculated interlaminar shear strength is strongly affected by the applied span-to-diameter ratio. Therefore, the article offers a conversion relationship that takes the span-to-diameter ratio into account. The suitability of the conversion relationship was also verified for alkali-conditioned specimens.

Keywords

FRP;Bar;Interlaminar shear;Short-beam shear test;Longitudinal;Alkaline solution degradation

Authors

JANUŠ, O.; GIRGLE, F.; ČAIROVIĆ, I.; KOSTIHA, V.; PROKEŠ, J.; ŠTĚPÁNEK, P.; ČAIROVIĆ, D.

Released

1. 11. 2022

Publisher

Elsevier Ltd.

ISBN

0263-8223

Periodical

COMPOSITE STRUCTURES

Number

299

State

United Kingdom of Great Britain and Northern Ireland

Pages count

16

URL

https://www.sciencedirect.com/science/article/pii/S0263822322008030

BibTex

@article{BUT178807,
  author="Ondřej {Januš} and František {Girgle} and Iva {Čairović} and Vojtěch {Kostiha} and Jan {Prokeš} and Petr {Štěpánek} and Dorde {Čairović}",
  title="Influence of test parameters on the interlaminar shear strength of FRP bars",
  journal="COMPOSITE STRUCTURES",
  year="2022",
  number="299",
  pages="16",
  doi="10.1016/j.compstruct.2022.116061",
  issn="0263-8223",
  url="https://www.sciencedirect.com/science/article/pii/S0263822322008030"
}