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Durability models for GRC: uncertainties on strength predictions

Itterbeeck, P. Van / Purnell, P. / Puypers, H. / Tysmans, T. / Orlowsky, J. / Wastiels, J.

Even though several models exist in the literature to predict the strength durability of glass fibre (textile) reinforced concrete (GRC), a considerable gap still exists between theory and practice. No real guidelines are available for testing, model calibration and model selection. This work analyses all the uncertainties in the GRC strength durability determination process. The paper addresses the determination of the best approximating model by applying a statistical model selection method (Akaike's information criterion) on an extensive series of accelerated aging tests; a theoretical approach is presented which enables the user to check the reliability of the model selection. A method is presented for the determination of the uncertainty in the strength prediction, taking into account both the statistical distribution present on the (tensile) strength of the GRC material as well as the effect of model calibration based on a limited set of accelerated aging tests.

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Durability models for GRC: uncertainties on strength predictions

Itterbeeck, P. Van / Purnell, P. / Puypers, H. / Tysmans, T. / Orlowsky, J. / Wastiels, J.

Even though several models exist in the literature to predict the strength durability of glass fibre (textile) reinforced concrete (GRC), a considerable gap still exists between theory and practice. No real guidelines are available for testing, model calibration and model selection. This work analyses all the uncertainties in the GRC strength durability determination process. The paper addresses the determination of the best approximating model by applying a statistical model selection method (Akaike's information criterion) on an extensive series of accelerated aging tests; a theoretical approach is presented which enables the user to check the reliability of the model selection. A method is presented for the determination of the uncertainty in the strength prediction, taking into account both the statistical distribution present on the (tensile) strength of the GRC material as well as the effect of model calibration based on a limited set of accelerated aging tests.

Durability models for GRC: uncertainties on strength predictions

Itterbeeck, P. Van / Purnell, P. / Puypers, H. / Tysmans, T. / Orlowsky, J. / Wastiels, J.

Even though several models exist in the literature to predict the strength durability of glass fibre (textile) reinforced concrete (GRC), a considerable gap still exists between theory and practice. No real guidelines are available for testing, model calibration and model selection. This work analyses all the uncertainties in the GRC strength durability determination process. The paper addresses the determination of the best approximating model by applying a statistical model selection method (Akaike's information criterion) on an extensive series of accelerated aging tests; a theoretical approach is presented which enables the user to check the reliability of the model selection. A method is presented for the determination of the uncertainty in the strength prediction, taking into account both the statistical distribution present on the (tensile) strength of the GRC material as well as the effect of model calibration based on a limited set of accelerated aging tests.

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Title:

Durability models for GRC: uncertainties on strength predictions

Contributors:

Itterbeeck, P. Van (author) / Purnell, P. (author) / Puypers, H. (author) / Tysmans, T. (author) / Orlowsky, J. (author) / Wastiels, J. (author)

Published in:

Duracosys, International Conference on Durability of Composite Systems, 9 ; 77-87

Plastics, Rubber and Composites ; 41

Publication date:

2012

Size:

11 Seiten, 5 Bilder, 9 Tabellen, 29 Quellen

ISSN:

DOI:

https://doi.org/10.1179/1743289811Y.0000000020

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Glasfaser , Prädiktion , Aktivierungsanalyse , statistische Verteilung , bewehrter Beton , Zugfestigkeit , Glasgewebe , Modellberechnung , Alterung , Kalibrier-Verfahren

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