Date
2024-04Subject
620 Engineering HolzBetonVerbundwerkstoffKlebstoffVerbundverhaltenFehlerKohäsionBruchmechanikHybridbauweiseMetadata
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Aufsatz
Bond strength, failure criteria and calculation methods for adhesively bonded timber–concrete composites
Abstract
The bond strength of adhesively bonded timber–concrete composites (ATCC) with prefabricated concrete elements is usually described using the shear strength of the timber. This approach, however, often fails to consider the actual failure modes of the bondline and also the interaction between shear stresses and stresses perpendicular to the bondline has not yet been comprehensively understood. To address this limitation, a reliable calculation method is required, where stress determination, failure criterion, and stress analysis are clearly defined to accurately predict the bond failure of ATCC specimens. In this study, three linear-elastic calculation methods and one non-linear calculation method are presented along with corresponding failure criteria and strength parameters. Regarding validation, the predicted failure load is compared to experimental results from 186 ATCC bond specimens to assess the method’s suitability. Based on the findings, appropriate calculation methods for a reliable prediction of the bond strength are recommended.
Citation
In: Construction and Building Materials Volume 423 (2024-04) eissn:1879-0526Sponsorship
Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-202404049897,
author={Frohnmüller, Jens and Seim, Werner},
title={Bond strength, failure criteria and calculation methods for adhesively bonded timber–concrete composites},
journal={Construction and Building Materials},
year={2024}
}
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2024-04-08T12:58:17Z 2024-04-08T12:58:17Z 2024-04 doi:10.17170/kobra-202404049897 http://hdl.handle.net/123456789/15633 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ timber–concrete composites adhesives bond strength failure criteria cohesive zone model fracture mechanics hybrid timber construction 620 Bond strength, failure criteria and calculation methods for adhesively bonded timber–concrete composites Aufsatz The bond strength of adhesively bonded timber–concrete composites (ATCC) with prefabricated concrete elements is usually described using the shear strength of the timber. This approach, however, often fails to consider the actual failure modes of the bondline and also the interaction between shear stresses and stresses perpendicular to the bondline has not yet been comprehensively understood. To address this limitation, a reliable calculation method is required, where stress determination, failure criterion, and stress analysis are clearly defined to accurately predict the bond failure of ATCC specimens. In this study, three linear-elastic calculation methods and one non-linear calculation method are presented along with corresponding failure criteria and strength parameters. Regarding validation, the predicted failure load is compared to experimental results from 186 ATCC bond specimens to assess the method’s suitability. Based on the findings, appropriate calculation methods for a reliable prediction of the bond strength are recommended. open access Frohnmüller, Jens Seim, Werner doi:10.1016/j.conbuildmat.2024.135651 Holz Beton Verbundwerkstoff Klebstoff Verbundverhalten Fehler Kohäsion Bruchmechanik Hybridbauweise publishedVersion eissn:1879-0526 Construction and Building Materials Volume 423 false 135651
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