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Proceedings

Increased Impact Resistance of Cross-Country Ski Poles by Improved, Simulation Assisted Composite Design

1
Department of Industrial and Materials Science, Division of Material and Computational Mechanics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
2
SKIGO AB, Fasadvägen 9, SE-98141 Kiruna, Sweden
*
Author to whom correspondence should be addressed.
Presented at the 12th Conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
Proceedings 2018, 2(6), 318; https://doi.org/10.3390/proceedings2060318
Published: 13 February 2018
High-end carbon fibre reinforced polymer (CFRP) ski poles of today are lighter and stiffer than previous generations, explained by the higher specific stiffness (stiffness to density ratio) for CFRPs, typically in the range of 0.1 GPa m3/kg compared to approximately 0.03 GPa m3/kg for aluminium. In this study, we have analysed different CFRP pole designs on the market by mechanical testing and microscopy. We conclude that the strive for optimised weight and bending stiffness has generally driven the pole design to be sub-optimal towards stiffness making them unnecessarily sensitive to transverse and impact loads. Based on the experimental findings, we have developed numerical simulation models to predict the bending and stress state in CFRP ski poles under axial as well as transverse (impact) loading conditions. These numerical model has then been used to find a new conceptual pole design with similar weight and stiffness but with seemingly higher impact resistance.
Keywords: ski poles; mechanical testing; numerical simulation; stiffness; failure; improved design ski poles; mechanical testing; numerical simulation; stiffness; failure; improved design
MDPI and ACS Style

Granlund, M.; Gräsberg, G.; Zrida, H.; Fagerström, M.; Karlsson, A. Increased Impact Resistance of Cross-Country Ski Poles by Improved, Simulation Assisted Composite Design. Proceedings 2018, 2, 318. https://doi.org/10.3390/proceedings2060318

AMA Style

Granlund M, Gräsberg G, Zrida H, Fagerström M, Karlsson A. Increased Impact Resistance of Cross-Country Ski Poles by Improved, Simulation Assisted Composite Design. Proceedings. 2018; 2(6):318. https://doi.org/10.3390/proceedings2060318

Chicago/Turabian Style

Granlund, Martin, Gustav Gräsberg, Hana Zrida, Martin Fagerström, and Andreas Karlsson. 2018. "Increased Impact Resistance of Cross-Country Ski Poles by Improved, Simulation Assisted Composite Design" Proceedings 2, no. 6: 318. https://doi.org/10.3390/proceedings2060318

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