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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU145271" target="_blank" >RIV/00216305:26110/22:PU145271 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263822322008030" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263822322008030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruct.2022.116061" target="_blank" >10.1016/j.compstruct.2022.116061</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/FW01010520" target="_blank" >FW01010520: Vývoj ohýbané kompozitní výztuže pro environmentálně exponované betonové konstrukce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

COMPOSITE STRUCTURES

ISSN

0263-8223

e-ISSN

1879-1085

Svazek periodika

neuveden

Číslo periodika v rámci svazku

299

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

„“-„“

Kód UT WoS článku

000877976800002

EID výsledku v databázi Scopus

2-s2.0-85135917784