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Noncircular CFRP bicycle’s chainring, part I: static and low-velocity impact analysis

Thanawarothon, Zhorachaid and Pairat, Paripat and Bouvet, Christophe and Mezeix, Laurent Noncircular CFRP bicycle’s chainring, part I: static and low-velocity impact analysis. (2018) Composites: Mechanics, Computations, Applications: An International Journal, 9 (3). 189-205. ISSN 2152-2057

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Official URL: http://doi.org/10.1615/CompMechComputApplIntJ.2018025470


The paper presents an experimental analysis to determine the teeth failure of noncircular composite chainring. A noncircular carbon/epoxy chainring with a specific stacking of 11 plies is studied. In a first step, a quasi-static tensile test is realized on the chain and on the chainring to determine their strength. As the damage of composites is a major concern, as a second step the low-velocity/low-energy impact drop tests are performed. Five levels of impact energy are investigated in order to study the energy effect on the teeth damage, and the damage localization is analyzed using C-Scan. Quasi-static results show that the metallic chain fails first. Experimental impact results reveal that teeth damage is presented only for an impact higher than 1.6 J. Finally, the total teeth failure appears for an energy close to 2.5 J.

Item Type:Article
HAL Id:hal-01880447
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Burapha University (THAILAND)
Other partners > Geo-Informatics and Space Technology Development Agency - GISTDA (THAILAND)
Laboratory name:
Deposited On:16 Jan 2019 09:32

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