Online citations, reference lists, and bibliographies.
Referencing for people who value simplicity, privacy, and speed.
Get Citationsy
← Back to Search

Buckling, Bending And Penetration Response Of The Taraxacum Officinalae (Dandelions) To Macadam Loading

Peter R. Greene, Virginia A. Greene

Save to my Library
Download PDF
Analyze on Scholarcy Visualize in Litmaps
Reduce the time it takes to create your bibliography by a factor of 10 by using the world’s favourite reference manager
Time to take this seriously.
Get Citationsy
A multi-stemmed, multi-leaved dandelion plant (Taraxacum officinale) can lift an overhead weight of 2–3 N, sustaining this force for 3–4 weeks, which can cause yielding and cracking of a macadam surface. In the present report, Euler buckling theory was applied to experiments on flower stems and leaf stalks of the dandelion plant, allowing an estimate of the internal stresses, strains and Young’s modulus of the plant-tube wall, under unusual loading conditions imposed by overhead weight. Stalk buckling-strength scaled with length L as 1/L2, stalk bending scaled as L3. Young’s modulus for the leaf stalks and flower stems was measured at 3–14 MPa, compressive wall stress at buckling was 0.1–0.2 MPa, being comparable to the cell turgor pressure. Because the dandelion plant is a natural source of latex and grows in a wide variety of climates, one practical application of this work may be using stress to enhance growth rates. Theory and experiments agree with correlation | r | > 0.94 for bending and buckling.