Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1949
This item is licensed with a CreativeCommons licence by/4.0
Publisher DOI: 10.3390/ma11122517
Title: Comparison of analytical approaches predicting the compressive strength of fibre reinforced polymers
Language: English
Authors: Leopold, Christian  
Harder, Sergej 
Philipkowski, Timo 
Liebig, Wilfried  
Fiedler, Bodo 
Keywords: fibre reinforced polymer;compression;analytical models;prediction;shear properties;microbuckling;kinking;glass fibres;carbon fibres
Issue Date: 11-Dec-2018
Publisher: Multidisciplinary Digital Publishing Institute
Source: Materials 11 (12): 2517 (2018)
Journal or Series Name: Materials 
Abstract (english): Common analytical models to predict the unidirectional compressive strength of fibre reinforced polymers are analysed in terms of their accuracy. Several tests were performed to determine parameters for the models and the compressive strength of carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP). The analytical models are validated for composites with glass and carbon fibres by using the same epoxy matrix system in order to examine whether different fibre types are taken into account. The variation in fibre diameter is smaller for CFRP. The experimental results show that CFRP has about 50% higher compressive strength than GFRP. The models exhibit significantly different results. In general, the analytical models are more precise for CFRP. Only one fibre kinking model’s prediction is in good agreement with the experimental results. This is in contrast to previous findings, where a combined modes model achieves the best prediction accuracy. However, in the original form, the combined modes model is not able to predict the compressive strength for GFRP and was adapted to address this issue. The fibre volume fraction is found to determine the dominating failure mechanisms under compression and thus has a high influence on the prediction accuracy of the various models.
URI: http://tubdok.tub.tuhh.de/handle/11420/1952
DOI: 10.15480/882.1949
ISSN: 1996-1944
Other Identifiers: doi: 10.3390/ma11122517
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Type: (wissenschaftlicher) Artikel
Funded by: Deutsche Forschungsgemeinschaft (DFG)
Project: Open Access Publizieren 2018 - 2019 / TU Hamburg 
Appears in Collections:Publications (tub.dok)

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