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    Author(s): Jinghao Li; John F. Hunt; Shaoqin Gong; Zhiyong Cai
    Date: 2016
    Source: Composites Part A: Applied Science and Manufacturing. 82: 235-242.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: View PDF  (1.0 MB)

    Description

    This paper presents static and fatigue bending behavior for a wood-based structural panel having a slot and tab (S/T) construction technique. Comparisons were made with similarly fabricated panels without the S/T construction technique. Experimental results showed that both types of panels had similar bending properties in the static tests. However, the panels with S/T construction had better fatigue results. The failure modes were different for the two fabrication techniques. The panels without S/T debonded at the core:face interface. Whereas, the panels with S/T had cracks that propagated within the rib of the core after debonding damage at the core:face interface. The fatigue deflection-life relationship indicated that the S/T construction improved the connection between the faces and core. The S/T construction decreased the deflection growth rate that delayed panel failure. The fatigue stress-life relationship or degradation was better for the panels with S/T construction than the panels without the S/T construction.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Li, Jinghao; Hunt, John F.; Gong, Shaoqin; Cai, Zhiyong. 2016. Improved fatigue performance for wood-based structural panels using slot and tab construction. Composites Part A: Applied Science and Manufacturing. 82: 235-242.

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    Keywords

    Biocomposite, Fatigue, Mechanical testing, Joints/joining

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