Experimental Testing of Statistical Size Effect in Civil Engineering Structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F13%3APU105399" target="_blank" >RIV/00216305:26110/13:PU105399 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Testing of Statistical Size Effect in Civil Engineering Structures

Popis výsledku v původním jazyce

The presented paper copes with an experimental validation of a model based on modified Weibull size effect theory. Classical statistical Weibull theory was modified by introducing a new parameter (correlation length l_rho) representing the spatial autocorrelation of a random mechanical properties of material. This modification is here compared with experimental data obtained for two different materials used in civil engineering: unreinforced (plain) concrete and multifilament yarns made of alkali-resistant (AR) glass which are used for textile-reinforced concrete. The behavior under flexural and tensile loading is investigated by laboratory experiments. A high number of specimens of different sizes was tested to obtain statistically significant data which were subsequently corrected and statistically processed. Results of the experiments showed a decreasing average strength with an increasing sample length. Size effect curves were obtained and the correlation length was fitted according to measured data. Results do not disclaim the existence of the proposed new parameter l_rho.

Název v anglickém jazyce

Experimental Testing of Statistical Size Effect in Civil Engineering Structures

Popis výsledku anglicky

The presented paper copes with an experimental validation of a model based on modified Weibull size effect theory. Classical statistical Weibull theory was modified by introducing a new parameter (correlation length l_rho) representing the spatial autocorrelation of a random mechanical properties of material. This modification is here compared with experimental data obtained for two different materials used in civil engineering: unreinforced (plain) concrete and multifilament yarns made of alkali-resistant (AR) glass which are used for textile-reinforced concrete. The behavior under flexural and tensile loading is investigated by laboratory experiments. A high number of specimens of different sizes was tested to obtain statistically significant data which were subsequently corrected and statistically processed. Results of the experiments showed a decreasing average strength with an increasing sample length. Size effect curves were obtained and the correlation length was fitted according to measured data. Results do not disclaim the existence of the proposed new parameter l_rho.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GC13-19416J" target="_blank" >GC13-19416J: Vývoj metodiky pro návrh a posouzení plošných a skořepinových konstrukcí z cementových kompozitů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

World Academy of Science, Engineering and Technology

ISSN

2010-376X

e-ISSN

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Svazek periodika

2013

Číslo periodika v rámci svazku

82

Stát vydavatele periodika

ID - Indonéská republika

Počet stran výsledku

8

Strana od-do

516-523

Kód UT WoS článku

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EID výsledku v databázi Scopus

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