Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

The Fracture Behaviour of Wood and the Relations between Toughness and Morphology

G. Jeronimidis
Proceedings of the Royal Society of London. Series B, Biological Sciences
Vol. 208, No. 1173 (Jul. 17, 1980), pp. 447-460
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/35321
Page Count: 17
  • Read Online (Free)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
The Fracture Behaviour of Wood and the Relations between Toughness and Morphology
Preview not available

Abstract

Wood is a complex composite material that possesses an excellent combination of mechanical properties. In particular the toughness, or work of fracture, is very high, reaching a value in excess of 1.0 × 104 J/m2, which, mass for mass, is roughly equal to the toughness of steel and higher than that of artificial composites. The high work of fracture of wood is shown to be due to the arrangement of the cellulose microfibrils in the secondary cell wall (S2). The helically wound pattern of these fibrillae is such as to induce a novel form of buckling failure in tension, which produces an elastic behaviour analogous to the yield point of ductile metals. When glass-fibre composites were constructed with a similar morphology, a large increase in work of fracture was observed.

Page Thumbnails

  • Thumbnail: Page 
447
    447
  • Thumbnail: Page 
448
    448
  • Thumbnail: Page 
449
    449
  • Thumbnail: Page 
450
    450
  • Thumbnail: Page 
451
    451
  • Thumbnail: Page 
452
    452
  • Thumbnail: Page 
453
    453
  • Thumbnail: Page 
454
    454
  • Thumbnail: Page 
455
    455
  • Thumbnail: Page 
456
    456
  • Thumbnail: Page 
[unnumbered]
    [unnumbered]
  • Thumbnail: Page 
[unnumbered]
    [unnumbered]
  • Thumbnail: Page 
[unnumbered]
    [unnumbered]
  • Thumbnail: Page 
457
    457
  • Thumbnail: Page 
458
    458
  • Thumbnail: Page 
459
    459
  • Thumbnail: Page 
460
    460