Determination of Number of Layers and Stacking Sequence of Composite Bicycle Frame

Abstract:

Due to the high specific strength, high specific modulus and good fatigue characteristics, carbon/epoxy composite bicycle frame can have superior performance to aluminum bicycle. As the strength of composite frame varies according to the number of layers and stacking sequence, it is necessary to determine the appropriate number of layers and stacking sequence for designing light weight composite frame. The frame is divided into six parts, i.e. head tube, seat tube, top tube, bottom tube, seat stay, and chain stay parts. Since different stress levels are generated among the different parts, different numbers of layer with different stacking sequences are considered for each part. Three different loading conditions, i.e. horizontal loading, vertical loading, and pedal loading, are considered in the analysis. The superb stacking sequence and number of layers of the composite frame with the lowest failure index were determined which satisfy the three different loading conditions.

• Periodical: Advanced Materials Research (Volumes 123-125)
• Pages: 531-534
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.123-125.531
• Online since: August 2010
• Authors: Hyung Jin Jung, Jin Ah Lee, Ka Yeon Kim, Heoung Jae Chun
• Keywords: Bicycle Frame, Fiber Orientation, Stacking Sequence

References

[1] Thomas Jin-Chee, Huang-Chieh Wu: Material and design Vol. 31 (2010), p.1971-(1980).

[2] Hyungjin Jung, Heoungjae Chun : Conference of the Korean Society of Composite Materials , spring (2010).

[3] EN 14764: City and trekking bicycles - Safety requirements and test methods, European Standard, (2005).

[4] KS R 8008: Bicycle - General specification, Korean Standard, (2009).